JLIGATIONS 



YERKES OBSERVATORY 



SWJSI 







Book ' Ji f<-S~ — 




THE YERKES OBSERVATORY OF THE UNIVERSITY OF CHICAGO 



PUBLICATIONS 



OF THE 



Yerkes Observatory 



OF THE 



UNIVERSITY OF CHICAGO 



Volume I 



CHICAGO 

THE UNIVERSITY OF CHICAGO PRESS 

1900 




THE 40-INCH CLARK TELESCOPE OF THE YERKES OBSERVATORY 

MOUNTED BY WARNER & SWASEV 



A GENERAL CATALOGUE 



OF 



1290 DOUBLE STARS 



DISCOVERED FROM 1 87 1 TO iSqQ BY S. W. BURNHAM. ARRANGED IN 

ORDER OF RIGHT ASCENSION WITH ALL THE MICROMETRICAL 

MEASURES OF EACH PAIR 



SrW.^BURNHAM 



CHICAGO 
THE UNIVERSITY OF CHICAGO PRESS 

1900 



"1^ 



.eyt. 



TO THE MEMORY OF 

BARON DEMBOWSKI 

THE DISTINGUISHED DOUBLE STAR OBSERVER, THE FIRST TO UNDER- 
TAKE THE SYSTEMATIC MEASUREMENT OF THESE STARS, AND 
WHOSE KINDLY CRITICISM AND GENIAL ENTHUSIASM 
. WERE TO THE WRITER ALWAYS AN 
INSPIRATION 

THIS VOLUME 

IS GRATEFULLY INSCRIBED 



INTRODUCTION 

A general catalogue of all the double stars discovered by me from time to time during the past 
twenty-five years has long been needed by those interested in this field of astronomical research, and, 
by reason of the special interest attached to many of these remote sidereal systems, it has become 
more and more important to bring the scattered material together in order to intelligently pursue the 
investigations which promise to so much increase our knowledge of the great universe beyond the 
solar system. These discoveries are scattered through nineteen different catalogues, published at 
various times and places, commencing with 1873 ; and the observation of these stars by a great num- 
ber of astronomers in this country and in Europe can only be made use of by consulting hundreds 
of volumes of observatory and society publications, astronomical periodicals, etc. It is difficult, if 
not practically impossible, for the general observer or investigator to make a really complete collec- 
tion of all the measures of a large number of these stars. Many of the observations are in obscure 
and unusual places, and in works not always readily accessible. 

This general catalogue was arranged and prepared for publication in the latter part of my con- 
nection with the Lick Observatory, 1888-1892, and most of my work with the great 36-inch refrac- 
tor of Mt. Hamilton during those four years was devoted to the careful remeasurement of the stars 
contained in the catalogues published prior to that time, and to the discovery and observation of 
another and more difficult class of doubles for which that splendid instrument is so well adapted. A 
new field was opened which was beyond the reach of most of the telescopes of the world. The pages 
of this catalogue will bear witness to the importance of the additions in the way of new measures 
and new systems made at the Lick Observatory during this time. For various reasons this catalogue 
was not published at that time. Since then it has been kept up to date by the addition of all the 
more recent measures, and the places recomputed by using later star catalogues, particularly those of 
the Astroiio?nischen Gesellschaft, so far as published, the Cordoba catalogues of southern stars, and the 
other recent publications, in lieu of the places originally taken from Lalande, Argelander's Durch- 
musterung, Weisse, etc. In this way some minor errors have been eliminated in the places, and in 
the identity of some of the stars. No attempt has been made to make this work a substitute for 
original star catalogues with respect to the absolute places of these stars in the heavens. As these 
positions have no other use than for finding the objects with the telescope, it was not considered 
worth while to reduce them to any later epoch than that used in the several original double star cata- 
logues, that epoch being uniformly 1880. In the star catalogue references, preference has been 
given, where the stars are below the naked-eye limit, to the old standard catalogues, although the 
places have been derived from more modern observations. 

THE FIRST OBSERVATIONS 

It may not be out of place here to give a brief history ot the beginning of this astronomical 
work. When in London, about 1861, I purchased one of the cheap astronomical telescopes intro- 
duced about that time. It had a nominal aperture of three inches, but was without a finder, and had 
only the simple alt-azimuth mounting, with a common table tripod. It was supplied with a terres- 
tial, as well as astronomical, eyepiece and while it was a good instrument for landscape use, it was 
of little value for astronomical purposes. Some years later I obtained a 3^-inch telescope, with an 
English object-glass, mounted equatorially by Fitz on a portable stand. This was just good enough 
to be of some use, and poor enough, so far as its optical power was concerned, to make something 
better more desirable than ever. In 1869 I accidentally met Mr. Alvan G. Clark in Chicago, on his 
return from Iowa, where he had been to observe the total eclipse of that year, and made some 

vii 



viii General Catalogue of Double Stars 

inquiries of him about a small equatorial. This interview resulted in my ordering from the celebrated 
firm of Alvan Clark & Sons an equatorial of six inches aperture. I told them what I wanted, and 
what I wanted it for. Every detail was left entirel}' to their judgment, stipulating only that its defi- 
nition should be as perfect as they could make it, and that it should do on double stars all that it 
was possible for any instrument of that aperture to do. In due course of time this instrument was 
delivered, and was set up in an observatory prepared for it in the meantime. My attention for some 
reason or other, which I am unable to explain, had been almost exclusively directed to double stars 
previous to this while using the smaller telescope referred to. This preference was not in any sense 
a matter of judgment as to the most desirable or profitable department of astronomical work, or the 
result of an}' special deliberation upon the subject. It came about naturally, without any effort or 
direction upon my part. 

At the beginning of the use of the 6-inch telescope my library, so far as the subject of double 
stars was concerned, was principally confined to the first edition of Webb's Celestial Objects for Com- 
ntoti Telescopes, and I wish here to record my great indebtedness to this most admirable and really 
indispensable book. It was of great assistance to me at that time, and it has never ceased to be a val- 
uable and convenient work for frequent reference. It contains about all that the beginner is likely 
to want in connection with any use of a small telescope. It has passed through several editions since 
that time, the last one containing many of these stars. The time came finally when other double- 
star catalogues were necessary. Double stars were frequently found which were not in Webb, and 
then it was necessary to ascertain what the}- were. The books at the Dearborn Observatory, then in 
charge of Professor T. H. Safford, were always accessible to me. This library had some of the prin- 
cipal star catalogues, but verv little relating to double stars except Struve's Mensurae Micrometricae . 
The result was that from time to time I made manuscript copies at the Naval Observatory, the Dart- 
mouth College Observatory, and other places, and from books borrowed from these institutions and 
various astronomers, of the essential results of most of the leading catalogues and observations relat- 
ing to this subject. These copies included Struve's Mensurae Micrometricae , Positiones Mediae, and 
Catalog2is Nov lis ; the seven catalogues of Sir John Herschel ; the catalogues of South, and Herschel 
and South, in the Philosophical Transactions; the Poulkowa Catalogtie of O. Struve ; the measures of 
Madler in the Dorpat Observations ; material given in the Memoirs and Monthly Notices of the Royal 
Astro7iomical 'Society, Astronomische Nachrichten, and publications of like character ; and many 
minor contributions, including nearly all the discoveries made after the Struves. While the labor 
involved in doing this work was very great, there was perhaps a corresponding advantage gained in 
acquiring a more thorough familiarity with the literature of this subject. Since that time these and 
many other works of like character have been obtained, and my library is practically complete, so 
far as double-star material is concerned. 

The want of a single catalogue of all the double stars visible in the northern hemisphere was 
very manifest soon after the commencement of the observations with the 6-inch refractor. Many 
pairs were picked up on every good night which it was desirable to identify with as little loss of time 
as possible. If wanting in Struve, Herschel, and other of the old catalogues, they might still be 
known pairs, and it was unsafe to assume that they had not been before observed, without a careful 
examination of many minor lists, catalogues and observations of various kinds, scattered throughout 
a large number of volumes issued by observatories and societies, periodicals, handbooks and mono- 
graphs printed in the last hundred years. I was therefore compelled in the interest of my own work 
to bring this material together and arrange all the pairs in order of Right Ascension in a general 
catalogue. In this way I made a manuscript catalogue of every known double star within I2i° of 
the north pole, giving the details of measures, magnitudes, star catalogue references, etc. With this 
at hand, it was but a moment's work at the telescope to identify any known object, and to decide at 



Introduction ix 



once whether or not an object thus found was really a new pair. This catalogue subsequently 
passed into a second manuscript edition, more complete and perfect in respect to some details. All 
the star places were reduced to a common epoch, and every measure of each pair was either given or 
cited. This served the purpose for a good many years, but the time came when the manuscript 
became too crowded by the interlineation of stars discovered by myself, and by other observers, and 
by the addition of a great number of references to measures and observations, and then I undertook 
the preparation of a third manuscript edition, which was arranged in the proper form for printing, 
with ample space for new stars and new observations, and giving a brief statement or discussion of 
the character of each pair of any general interest. This catalogue, substantiall}' bound in twelve 
volumes, has all the time been kept posted to date by the addition of all new material as soon as 
printed, and many unpublished discoveries and observations. This general catalogue in its various 
forms has been of the greatest value and assistance to me from the beginning in all this work. In 
fact, it rendered possible all that has been accomplished in this field. Very few will fully appreciate 
the enormous amount of hard work which has been necessarily expended in the preparation of such 
a work. Whether it will ever assume other than the present manuscript form remains to be seen. It 
should be remarked in this connection that, with the exception of the four years, 1888-1892, all of 
this astronomical work, with the telescope and otherwise, has been done when eight or more hours 
of at least six days in the week were more or less occupied with other and very different affairs 
of life. 

THE ORIGINAL LISTS OF NEW DOUBLE STARS 

My discoveries of double stars may be said to have commenced in 1872, although the 6-inch 
Clark refractor had been in my possession for a year or two previousl}'. A complete list of the 
the nineteen catalogues, which are included in this work is as follows : 

First Catalogue (/3 i to 81). Montldy Notices of the Royal Astronomical Society, XXXIII, 351 (March 
1873). Discovered with the 6-inch refractor. 

Second Catalogue {fi 82 to 106). Monthly Notices of the Royal Astjonomical Society, XXXIII, 437 (May 
1873). Discovered with the 6-inch refractor. 

Third Catalogue {(i 107 to 182). Monthly Notices of the Royal Astronomical Society, XXXIV, 59 (Decem- 
ber 1873). Discovered with the 6-inch refractor. 

Fourth Catalogue (/? 183 to 229). Monthly N'otices of the Royal Astronomical Society, XXXV, 382 (June 
1874). Discovered with the 6-inch refractor. 

Fifth Catalogue (fi 230 to 300). Monthly Notices of the Royal Astronomical Society, XXXV, 31 (Novem- 
ber 1874). Nos. 230 to 252 were discovered with the 6-inch refractor; Nos. 253 to 281 with the 9.4-inch 
refractor of the Observatory of Dartmouth College, and Nos. 286 to 300 with the 26-inch refractor of the 
Naval Observatory at Washington. 

Sixth Catalogue (y8 301 to 390). Astronomische Nachrichten, No. 2062. Discovered witli the 6-inch 
refractor. 

Seventh Catalogue {fi 391 to 436). Astronomische Nachrichten, No. 2103. Also reprinted in the American 
Journal of Science, September 1876. Discovered with the 6-inch refractor. 

Eighth Catalogue (j8 437 to 452). American Journal of Science (Julv 1877). Discovered with the 18^- 
inch refractor of the Dearborn Observatory. 

Ninth Catalogue ifi 453 to 482). Monthly Notices of the Royal Astronomical Society, XXXVIII. 7S ( Decem- 
ber 1877). Discovered with the 6inch refractor. 

Tenth Catalogue (j8 483 to 733). Memoirs of the Royal Astronomical Society, Vol. XLIV. Discovered 
with the 1 8 I/O -inch refractor of the Dearborn Observatory. (This volume contains also measures of 500 
other double stars with the same instrument.) 



General Catalogue of Double Stars 



Eleventh Catalogue (^ 734 to 775). Report to the Trustees of the James Lick Trust of Observations made 
on Mf. Hamilton with reference to the Location of the Lick Observatory, 1880. Observations with the 6-inch 
refractor on Mt. Hamilton in 1879. There are measures of a few of the old pairs with the same instru- 
ment. (This report is reprinted in Publications of the Lick Observatory, Vol. I.) 

Twelfth Catalogue (/? 776 to 863). Publications of the Washburn Observatory, Vol. I. Observations with 
the i5j^-inch equatorial of the Washburn Observatory, Madison, Wis., in 1881. (This volume contains 
also several hundred measures of other double stars.) 

Thirteenth Catalogue (fi 864 to 1025). Memoirs of the Royal Astronomical Society, Vol. XLVII. Nos. 
864 to 997 discovered with the 18^-inch refractor of the Dearborn Observatory; Nos. 998 to 1013 with 
the 12-inch of the Lick Observatory in October 1881 ; and Nos. 1014 to 1025 with the 18^-inch at 
Chicago. (This volume contains a large number of measures of Struve and other pairs.) 

Fourteenth Catalogue (/8 1026 to 1038). Astronomische Nachrichten, No. 2875. Observation with the 12 
and 36-inch refractors of the Lick Observatory. The numbers were inadvertently omitted, but are given 
in the introduction to Catalogue XV. {Astronomische Nachrichten 2875 also contains measures of other 
stars.) 

Fifteenth Catalogue (J^ 1039 to 1092). Astronomische Nachrichten, Nos. 2929, 2930. Observations with 
the 36-inch refractor. (Also measures of other double stars.) 

Sixteenth Catalogue (/3 1093 to 1154). Astronomische Nachrichten, Nos. 2956, 2957. Observations with 
the 36-inch refractor. (Also measures of other double stars.) 

Seventeenth Catalogue (/8 1155 to 1224). Astronomische Nachrichten, 'Ho?,. 3047, 3048. Observations with 
the 36-inch refractor, and iTieasures of other stars. 

Eighteenth Catalogue (^ 1225 to 1266). Astronomische Nachrichten, Nos. 31 13, 31 14. Observations with 
the 36-inch refractor, and measures of other stars. 

Nineteenth Catalogue (/3 1267 to 1274). Astronomische Nachrichten, Y{o%. 3141, 3142. Observations with 
the 36-inch refractor. (Catalogues XIV to XIX are given in Publications of the Lick Observatory, Vol. II.) 

(j8 1275 to 1290). Published for the first time in this volume. 

THE TELESCOPES USED 

It is worthy of note in this connection that all of these new stars, without exception, were 
discovered with telescopes made by Alvan Clark & Sons. In one sense the success of this work is 
due to these eminent opticians, tor nothing is more certain than that these discoveries could not 
have been made with any other class of telescopes. These instruments in order of aperture are as 
follows : 

The 6-inch refractor. It is hardly necessary to say, in view of the discoveries made with it and given in 
this catalogue, that its performance on the most difficult objects was simply perfect. Many of the stars discovered 
with it are by no means easy to measure with the largest telescopes now in use. Some of the most rapid and 
interesting binaries in this catalogue were discovered with this instrument. It now belongs to the Washburn 
Observatory of the University of Wisconsin. 

The 9.4-inch refractor of the Dartmouth College Observatory. During the summer of 1874 I spent a vaca- 
tion within a few miles of this place. Before leaving for China on the Transit of Venus expedition, Professor 
Young very kindly placed his telescope at my disposal, and I spent some ten nights at that Observatory, with 
the results given in the Fifth Catalogue. 

The 12-inch refractor of the Lick Observatory. The discoveries made with this telescope when I was on 
Mt. Hamilton for the second time, in 1881, are found in the Thirteenth Catalogue. The observations from 
1888 to 1892 are contained in the Mt. Hamilton catalogues. Some of the most difficult pairs were discovered 
with this instrument, for instance, <r Orionis, 2 Andromedae, etc. 

The 15.5-inch refractor of the Washburn Observatory at Madison, Wisconsin. The results of some four or 
five months' work with that telescope in 1881 will be found in the Twelfth Catalogue [Publication] s of the Wash- 
burn Observatory, Yo\. I.) This is an excellent instrument, and very convenient to use in all its appointments. 




THE 36-INCH CLARK TELESCOPE OF THE LICK OBSERVATORY 

MOUNTED BY WARNER i. SWASEY 



Introduction 



The i6-inch refractor of the Warner Observatory at Rochester, N. Y. I had the pleasure of spending an 
evening with Dr. Lewis Swift, and picked up two or three new pairs which are given in my later catalogues. 
This fine instrument is now at the Lowe Observatory, in southern California. 

The 18.5-inch refractor of the Dearborn Observatory at Chicago. This, at the time it was made, was the 
largest refractor in the world ; and, although one of the early works of Clark & Sons, the definition of the 
object-glass is as perfect as any of their later productions. 'i'his is established by the discoveries and meas- 
ures in my 7>////z and Thirteenth Catalogues. The Dearborn Observatory, at that time, was attached to the 
old University of Chicago, and was located about three and a half miles from the business center of the city. 

The 26-inch refractor of the Naval Observatory at Washington. I had the privilege of using this instru- 
ment one night in 1874, and found the new stars given in my Fifth Catalogue. 

The 36-inch refractor of the Lick Observatory. With reference to the superb definition and light-power 
of the great telescope, it is sufficient to refer to the discoveries, and the measures of difficult objects contained 
in my last five catalogues. These will demonstrate the immense superiority of this instrument over all others 
elsewhere. There is probably no place in the world, where an observatory has been established, which can 
compare favorably with Mt. Hamilton. 

The 40-inch refractor of the Yerkes Observatory. In the last two years I have given the time spent at the 
Yerkes Observatory to the re-measurement of these stars, where recent measures were wanting, and where 
change was shown by the prior observations. Much of the time the most difficult of these pairs could not be 
observed under the conditions present. All the measures given in the following pages, as made by me in 
1897, 1898, and 1899, were made with this instrument. Altogether I have made about 950 measures of 
these pairs. Of course the number of measures which can be made in a given time with so large an 
instrument is much less than it would be with the other equatorials used in this work. More time is neces- 
sarily used in setting on stars in different parts of the sky than would be required with a moderately large 
aperture. When the 40-inch refractor is moved by hand, as it must be in getting every object into the field, 
it is necessary to move about twenty tons. 

In the course of these observations, sixteen new pairs, Nos. 1275 to 1290, have been added to this cata- 
logue, eight of which were noted with the large refractor. The others were stars discovered many years ago, 
some at Mt. Hamilton, and others at the old Dearborn Observatory, but were forgotten to be included in the 
catalogues of that time. In looking over my old observing books, I have made a note of some of these omis- 
sions, and as far as possible recovered and measured them for this work. 

DISTRIBUTION OF DISCOv^ERIES 

An examination of this catalogue to acertain the distribution of the discoveries among the 
several telescopes used in this work shows the following : 

6-inch — Private Observatory - - - - -451 

nch — Dearborn Observatory - - - - 413 

nch — Lick Observatory - - - - - 198 

nch — Washburn Observatory - - - - 87 

nch — Lick Observatory - - - - -56 

nch — Darmouth College Observatory - - - 24 

nch — Naval Observatory - - - - - 14 

nch — Yerkes Observatory . . . . 8 

nch — Warner Observatory - - - - - 2 

MICROMETRIC.AL ME.VSURES 

The first measures of these stars were made by the late Baron Dembowski. 1 was fortunate 
in being placed in communication with this eminent astronomer soon after the commencement of 
my work with the 6-inch refractor, and from that time on until his death, in 1 88 1, I was in constant 
correspondence with him, and all of my discoveries were transmitted to him in advance of their 



36- 

12- 
9.4- 
26- 
40- 
16- 



General Catalog7ie of Double Stars 



publication. These new stars were measured by him in the most painstaking and thorough manner, 
and his observations give the fundamental data for comparison with subsequent measures of very 
many of the most important of these new systems. As an observer with the micrometer he had no 
superior, and few, if any, equals. His work is of the highest degree of accuracy. He made no 
mistakes, and wasted no time in idle speculations. He has left a record of honest, thorough and 
consistent work which will be an honor to his memory for all , time. Baron Dembowski was to me 
an example so inspiring, a critic so genial and frank, a friend so warm-hearted and disinterested that 
simple justice as well as friendship impels me to inscribe this volume to his memory. The Royal 
Astronomical Society recognized the value of his services by the award of its gold medal in 1878. 
The results of his life-work have been published in two large volumes prepared and issued after his 
death under the direction of the two distinguished astronomers, Otto Struve and Schiaparelli. These 
observations are indispensable to every observer engaged in this department of work. 

My own work with the micrometer commenced with the use of the i8jE^-inch equatorial of the 
Dearborn Observatory, situated then in the city of Chicago. It was continued for a few months at the 
Washburn Observatory, at Madison, Wis., in 1 881, and was then suspended until the commencement 
of my duties at the Lick Observatory in the latter part of 1888. During the four years spent at 
that place my time was almost exclusively given to the measurement and discovery of double stars. 
If the discovery of new pairs, regardless of their micrometrical measurement, had been the para- 
mount object, this general catalogue would have been increased by the addition of at least many 
hundred new pairs ; but I deemed it of the first importance to accompany each discovery with a 
careful set of measures. This seemed the more necessary because most of the pairs found with the 
large refractor were too difficult for ordinary instruments ; and therefore it was very desirable that 
good positions should be obtained " with which future observations, whenever made, could be 
compared. A considerable portion of the time was given to the re-measurement of the stars previ- 
ously discovered, and new pairs added no faster than they could be thoroughly observed with the 
micrometer. 

Below is given a list of the principal observers whose measures of these stars are given in 
this work. 



AlTKEN, R. G. 
Barnard, E. E. 
boothroyd, s. l. 

BOWYER, W. 

Brown, S. J. 
Bryant, W. W. 
cogshall, w. a. 
Collins, W. H. 
comstock, g. c. 
Dembowski 
doolittle, e. 
Dyson, F. W. 
Egbert, H. V. 



Engelmann, R. 
Glasenapp, S. 
Hall, Asaph 
Hough, G. W. 
Howe, H. A. 
Hussey, W. J. 
Lamb, Alice 
Leavenworth, F. P. 
Lewis, Thomas 
Maw, W. H. 
Muller, Frank 
Pollock, J. A. 
Pritchett, H. S. 



Schiaparelli, G. V. 
Scott, J. L. 
See, T. J. J. 
Sellors, R. p. 
Stone, Ormond 
Struve, H. 
Struve, O. 
Tarrant, K. J. 
Wilson, H. C. 
Updegraff, Milton 
Upton, Winslow 



NUMBER OF DOUBLE STARS 



In giving the number of nights included in the mean result given in the catalogue, I have 
stated it as the number of complete measures ; that is, when distance and position-angle are both 
measured. In many instances the angle has been measured on a greater number of nights than that 
given here. 




THE 18U-INCH CLARK TELESCOPE OF THE OLD UNIVERSITY OF CHICAGO (DEARBORN OBSERVATORY) 



Introduction 



Xlll 



The total number of double stars now known has been greatly overstated by some writers. It 
has been said that the number is ten thousand and upwards. This is correct if the number is to be 
arrived at by adding all the stars contained in the various early double star catalogues; but it must 
be remembered that these lists, and particularly those of the Herschels, include a large proportion 
of very faint and very wide stars which cannot be called double in the proper sense of the word. 
The distance between them is much too great to make it in the least probable that the stars have 
any physical connection. With such a standard the number of pairs could be increased to hundreds 
of thousands by sweeping with a very moderate aperture. The number recorded in a single 
night would be limited only by the time occupied in reading the circles, and fixing the star 
places. The great majority of binary stars are moderately close pairs, where the mean distance 
does not exceed 2"; and all the short period binaries are very much closer. In the appendix to my 
Thirteenth Catalogue I gave a tabular statement showing the whole number of double stars of Class 
I (distance o" to i") and Class II (distance i" to 2*) in all the original double star catalogues 
published at that time. This statement, with my later results added in 1891, is as follows: 





Class I 


Class II 


Total 


Ratio 


BuRNHAM. Catalogue of 1260 stars 
0. Struve. Catalogue of 547 stars - 
Struve. Catalogue of 2640 stars 
Herschel I. Catalogue of 812 stars 
Herschel II. Catalogue of 3429 stars 


385 
154 

91 

12 

2 


305 

63 

314 

24 
20 


690 

217 

405 

36 

22 


550 : 1000 

400 : 1000 

150 : 1000 

45 : 1000 

7 : 1000 



It will be seen from this exhibit that prior to 1870 all the leading double star catalogues 
combined, including altogether not less than 7400 so-called double stars, contained less than 700 
pairs with distances not exceeding 2". It will be noticed also that 60 per cent, of all known pairs 
with distances of i" and less had been discovered in the preceding twenty 37ears. 

It is apparent from this investigation that upon a very liberal estimate there were not more 
than 4000 or 5000 stars within 120° of the north pole which could be properly called double; and 
that many of this number were of little interest as physical systems, or likely to become so hereafter. 
In some instances the recording and measuring of a distinct companion has been of value in deter- 
mining the proper motion of the primary ; and in other instances it has been shown that the proper 
motion is common to both stars, and that therefore they have some connection with each other. 

In recent years many new double stars have been discovered by a number of American 
observers. Of these special mention should be made of the several catalogues of new pairs recorded 
by Hough with the iB^-inch of the Dearborn Observatory, which is now connected with the North- 
western University at Evanston, 111., and of the discoveries by See at the Lowell Observatory. 
These catalogues contain many close and interesting objects. 



THE FIELD FOR DISCOVERY 

For many years prior to 1870 it seems to have been practically accepted that the field for the 
discovery of new pairs had been substantially worked out by the Herschels and the Struves, and 
that so little had been overlooked by these eminent pioneers in this work that there was little chance 
for later observers to make many important additions. The great work of the first Stru\e, Mcnsnrae 
Micrometricae, published in 1827, contained all known double stars within los"" of the north pole. 
The stars discovered by Herschel I, and other early observers, which were within the wide limits of 
distance adopted by Struve, are embraced in his great catalogue. His examination of the heavens 



General Catalogue of Double Stars 



in search of new pairs was as complete and thorough as could have been expected under the 
conditions existing at that time. This was supplemented by the labors of his equally distinguished 
son, Otto Struve, who continued the work with the more powerful telescope at Poulkowa, and added 
some four hundred new pairs, published in 1850 as the Pozdkozva Catalogue. For many years after 
this there was very little done in this field of astronomy, aside from the measurement of the pairs 
previousl}^ discovered ; and that seems to have been taken by observers generally as about the only 
thing remaining to be done. 

In 1842 the late Professor O. M. Mitchel visited Europe for the purpose of inspecting foreign 
observatories, and purchasing a telescope for the proposed Cincinnati Observatory. In the interest 
of this object he visited most of the leading European astronomers, and, among others. Sir James 
South. This was during, or about, the time of a long litigation which grew out of a contract between 
this astronomer and a firm of instrument makers who undertook to mount equatorially a large object 
glass belonging to South. Mitchel, in describing his interview, says :^ 

One apartment was examined after another, until finally we reached a large room surmounted by a 
dome of great size and of an expensive construction, while fragments of the framework for mounting a great 
equatorial were scattered around. 

"Here, sir," exclaimed Sir James, "you behold the wreck of all my hopes. Here I have expended 
thousands, and flattered myself that I was soon to possess the finest instrument in Europe ; but it is all over, 
and there's an end." 

I remarked that the object-glass was still in his possession, and might yet be mounted so as to realize 
his hopes and expectations. 

"No," said Sir James, "Struve has reaped the golden harvest among the double stars, and there is little 
now for me to hope or expect." 

It would be difficult to appreciate the feelings which at that moment were sweeping through the mind 
of the astronomer. Long cherished visions of fame and high distinction, nay, perhaps of grand discoveries 
in the heavens, which for years had played round his hopes of the future, had fled forever. Another had 
reaped the golden harvest, and like Clairaut, who wept that there was not for him, as for Newton, the problem 
of the universe to solve. Sir James South could almost weep to think that another's eye had been permitted to 
sweep over the far distant realms of space which he had long hoped might remain his own peculiar province. 

Such views seem very strange at this time, when, if one is absolutely certain of anything in 
this direction, it is that there is much more to do, even now, after the lapse of half a century, in 
every department of double star work, than there ever was before. The late Rev. T. W. Webb, author 
of Celestial Objects for Commori Telescopes, one of the most eminent English amateur astronomers, in a 
letter written to me in 1873, after the publication of my first three catalogues, said: "It will hardly 
be possible for you to go on for any great length of time as you have begun, because the number of 
such objects is not interminable, and every fresh discovery is one less to be made ; still, what you 
have already done is so much more than any man now living has accomplished, that your high 
position as an observer is fully secured." Since that time more than one thousand new double stars 
have been added to my own catalogues, and the prospect of future discoveries is as promising and 
encouraging as when the first star was found with the six-inch telescope. The gold medal of the 
Royal Astronomical Society was awarded in 1894 for these discoveries. 

NEW STARS TO OLD PAIRS 

As would be expected in discoveries of this kind, many of the old pairs recorded by the 
Herschels, the Struves, and other astronomers, have been found to be triple or quadruple, by the 
addition of much closer and more difficult components. This catalogue contains 133 stars of this 

' Ormsby Mac Knight Mitchel: Astronomer and General. A biographical narrative. By his son, F. A. Mitchel, 1887. 




THE 6-INCH CLARK REFRACTOR, NOW AT THE WASHBURN OBSERVATORY, UNIVERSITY OF WISCONSIN 



Introduction 



class, or more than one tenth of the whole number is made up of previously known doubles, where 
one of the components has been again divided, or a much nearer star added to the system. Most of 
these were difficult objects when discovered, and all of them much more difficult than the old stars. 
In this way some pairs, much too wide to be of any interest as double stars, have been shown by the 
discovery of the new star to be important binary systems, and among the most rapid known. 

The following is a classified list of the pairs given in the several catalogues of the Herschels, 
the Struves, and South, which I have found to be more closely double : 



W. STRUVE 


W. STRUVE 


HERSCHEL II 


HERSCHEL I 


2 


Page 


2 


Page 


H 


Page 


IS 


Page 


17 


3 


2130 


155 


1981 


7 


VI. 66 


49 


100 


18 


2268 


171 


2161 


33 


VI. 35 


57 


117 


20 


2287 


173 


2298 


75 


V. 25 


61 


157 


24 


2342 


180 


2638 


123 


V. 21 


70 


171 


25 


2476 


188 


2661 


127 


V. 91 


73 


258 


30 


2538 


192 


2710 


133 


VI. 70 


90 


524 


34 


2539 


193 


2867 


190 


III. 27 


91 


366 


37 


2549 


194 


3133 


249 


VI. 42 


91 


439 


41 


2557 


195 


3216 


266 


IV. 26 


97 


468 


43 


2704 


212 


3261 


53 


VI. 78 


97 


645 


58 


2793 


229 


3275 


63 


IV. 120 


102 


668 


59 


2816 


233 


3644 


47 


V. 124 


130 


687 


61 


2824 


235 


3761 


. 64 


III. 7 


146 


692 


62 


2959 


254 


3780 


69 


V. 6 


148 


• 707 


63 


3018 


261 


3875 


81 


III. 113 


202 


721 


64 
66 


3047 


267 


4774 
4803 


142 
144 


V. 95 
VI. 21 


244 


734 


HERSCHEL II. 


250 


753 


67 


4935 


160 


SOUTH 


762 


68 

72 
77 
85 


H 


Pace 


5009 
5028 

5035 
5072 


170 
172 

173 
184 


809 


S 




888 


367 

607 


65 

204 


Page 


1026 


409 


29 


1057 


87 
89 


998 
1455 


271 
•99 


5532 


^56 


423 
437 


35 


1097 




42 


1179 


96 
128 
133 
147 


1489 
1499 

1554 
1828 


203 
206 
214 
252 


HERSCHEL I. 


537 
571 
627 
663 


82 


1780 
183 s 


lil 


Pace 


100 
114 


2005 


V. 92 


25 


137 



XVI 



General Catalogue of Double Stars 



SOUTH 


STRUVE 


W. STRUVE (Appendix) 

Wide Pairs 


S 


Page 


02 


Page 


2 


Page 


738 

752 

■ 781 


203 
210 
225 


24 17 
169 86 

173 90 
242 117 
336 167 
367 189 
425 220 
447 232 

W. STRUVE (Appendix) 

Wide Pairs 


38 App. I 

39 App. I 
58 App. I 
12 App. II 


181 
183 
247 




257 


SOUTH AND HERSCHEL 


0. STRUVE (Appendix) 

Wide Pairs 


Sh 


Page 


02 


Page 


1 10 
I 20 


107 
114 

134 
169 
176 
176 
141 


App. 12 
App. 38 
App. 77 
App. 177 
App. 209 
App. 215 
App. 220 
App. 234 


17 
41 

79 
189 


179 

255 


2 


Page 


263 
264 
376 


14 App. I 
21 App. i 
24 App. I 


65 

I2C 

124 


215 
225 

232 
245 



NEW NAKED-EYE DOUBLE STARS 

In nearly one fourth of the whole number of stars found to be double, the primary is bright 
enough to be visible to the unaided eye. These stars, numbering altogether 291, are pretty well 
distributed among the different constellations visible in this latitude. Many of them are among the 
most prominent of the bright and well-known stars. To facilitate easy reference to these stars, 
when only the constellation name is given, I have arranged them under the heads of the constella- 
tions in which they are found. 



/? 


Star 


Page 




Aiidrotneda 




1095 


28 Andromedae 


5 


491 


S Andromedae 


9 


999 


CO Andromedae 


20 


1147 


2 Andromedae 


255 


717 


8 Andromedae 


259 


388 


W= XXII. 590 


262 


995 


Groombridge 4139 


265 



/? 


Star 


Page 




Aquarius 




1034 


7 Aquarii 


219 


73 


^ Aquarii 


230 


J2I2 


24 Aquarii 


232 


172 


51 Aquarii 


244 


178 


Aquarii 252 


252 


1220 


i//' Aquarii 


257 


279 


(i)'' Aquarii 


264 







Introduction 




xvii 


/? 


Star 


Page 


^ 


Star 


Page 




Aquila 






Cancer 




287 


t, Aquilae 


187 


1065 


f3 Cancri 


98 


653 
672 


/x Aquilae 
71 Aquilae 


193 
214 




Canes Venatici 




755 

757 


Argo 

Argus 34 
Argus 10 1 


81 
86 


925 
930 
608 


Groombridge 1938 
B.A.C 4389 
17 Canes Ven. 


12 I 
123 
124 


578 
io6i 
1063 

lOI 

1064 


Lalande 14545 

K Argus 

k Argus 

9 Argus 

19 Argus 


89 

91 
92 
92 
97 


753 
328 

329 


Canis Major 
\ Canis Majoris 
Canis Majoris 139 
Canis Majoris 146 


80 

85 
85 


208 


Lalande 17 103 


lOI 




Ca?ns Mifior 






Aries 




21 


r] Canis Minoris 


89 


522 


ix. Arietis 


32 








306 


Arietis 307 


32 




Capricornus 




878 


66 Arietis 


39 


294 


3 Capricorni 


204 


554 

1046 

888 


Auriga 
e Aurigae 
9 Aurigae 
o- Aurigae 


57 
57 
62 


295 
60 
61 

668 


a' Capricorni 
TT Capricorni 
p Capricorni 
B.A.C. 7080 


204 
208 
208 
210 


1240 


26 Aurigae 


66 




Cassiopeia 




192 


T Aurigae 


70 


1094 


Lalande 655 


5 


893 


B.A.C. 1935 


74 


231 


Cassiopeiae 


10 


901 


65 Aurigae 


87 


492 


B.A.C. 201 


10 




Bootes 




497 


B.A.C. 239 


13 


1 1 1 1 


B.A.C. 4766 


133 


1098 


1)" Cassiopeiae 


13 


616 


y Bootis 


135 


1028 


y Cassiopeiae 


14 


1086 


47 Bootis 


140 


1099 


B.A.C. 255 


14 


750 


Caelum 
1 y Caeli 


58 


396 

IIOI 

1 103 


B.A.C. 282 

t/' Cassiopeiae 

44 Cassiopeiae 


15 
19 
23 




Ca?neleopardalis 




513 


48 Cassiopeiae 


27 


1043 


3 Camelopardali 


51 


785 


49 Cassiopeiae 


28 


1187 


5 Camelopardali 


55 


278 


B.A.C. S138 


260 



General Catalogue of Dojible Stars 



^ 


Star 


Page 




Centaunis 




343 


Centauri 2 i g 


129 


III2 


Lacaille 5893 


135 


414 


Centauri 315 


136 


347 


Centauri 330 


138 





Cepheus 


1176 


48 Cephei (H) 


1134 


D.M. (63°) 1618 


"43 


P XXI. 248 


690 


ju, Cephei 


697 


19 Cephei 


702 


8 Cephei 



Cetus 



37 
208 

237 
240 
246 



486 


Ceti 33 


490 


13 Ceti 


395 


Ceti 82 


1160 


B.A.C. 230 


734 


Ceti 132 


505 


B Ceti 


1163 


Ceti 199 


399 


Ceti 211 


7 


58 Ceti 


518 


Ceti 389 


84 


W III. 147 




Cotna Berenices 


1080 


17 Comae 


1081 


37 Comae 


1 12 


P XXII. 243 


1083 


P XXII. 268 




Corona 


1087 


r Coronae 



9 
12 

13 

20 
20 
21 
27 

31 

38 



120 
121 
121 
123 



;8 


Star 


Page 




Corvjis 




1079 


Lalande 22586 


117 


920 


Corvi 17 


118 


605 


Corvi 26 


119 


1245 


t Corvi 


119 


28 


B.A.C. 4213 
Crater 


120 


220 


Crateris 22 


"3 


600 


Crateris 36 


114 


1078 


Crateris 79 
Cyg?ius 


115 


1131 


e Cygni 


19s 


980 


V Cygni 


199 


660 


B.A.C. 6963 


204 


661 


Cygni 166 


205 


665 


y Cygni 


207 


669 


(u"" Cygni 


210 


675 


51 Cygni 


215 


676 


€ Cygni 


216 


677 


T Cygni 


217 


"37 


B.A.C. 7278 
Delphinus 


219 


63 


I Delphini 


209 


151 


)8 Delphini 


211 


298 


a Delphini 


214 


65 


13 Delphini 
Draco 


217 


794 


0. Arg. N. i2i4g 


116 


799 


R 2963 


124 


946 


B.A.C. 5248 


145 


1088 


fjL Draconis 


15s 


1090 


y8 Draconis 


165 


962 


26 Draconis 


166 


633 


y Draconis 


168 


971 


Draconis 205 


183 


1255 


B.A.C. 6476 


185 



Introduction 



XIX 



y8 


Star 


Page 


71 


Equuleus 
y Equulei 


224 



1 1 

400 

531 

744 

311 

881 

88 



877 



Eridanus 

p" Eridani 
Eridani 103 
Lalande 6275 
Eridani 299 
Eridani 315 

46 Eridani 

51 Eridani 

Fornax 
y Fornacis 

Gemini 



I24I 


3 


Geminorum 


1058 


4 


Geminorum 


1008 


»7 


Geminorum 


1059 


/^ 


Geminorum 


1 192 


V 


Geminorum 


571 




W VI. 956 


1193 


36 


Geminorum 


1009 


T 


Geminorum 


II94 


65 


Geminorum 


200 


70 


Geminorum 


580 


/8 Geminorum 


1062 


82 


Geminorum 



Grus 



36 

37 
38 

47 
48 

SI 
52 



33 



74 
75 
76 

78 

79 
81 
82 
85 
89 
90 

91 
92 



768 


Lacaille 8964 


238 


771 


or^ Gruis 


248 


773 


V Gruis 


255 



/8 


Star 


Page 






Hercules 




1198 


T 


Herculis 


149 


625 


0) 


Herculis 


150 


816 


31 


Herculis 


152 


818 


32 


Herculis 


152 


627 


52 


Herculis 


154 


954 


54 


Herculis 


154 


130 


90 


Herculis 


168 


646 


"3 


Herculis 


184 



694 
703 
451 
382 







Hydra 




587 


15 


Hydrae 


102 


588 




Hydrae 96 


105 


590 


29 


Hydrae 


106 


593 


A 


Hydrae 


109 


1269 


44 


Hydrae 


no 


411 




Lacaille 4360 


no 


1075 


r 


Hydrae 


no 


341 




Hydrae 348 


122 


1246 




B.A.C 4740 


132 


940 


52 


Hydrae 


134 


239 


59 


Hydrae 


139 



Lacerta 

Lacertae 4 
a Lacertae 
15 Lacertae 
B.A.C. 7983 

Leo 



105 


K Leonis 


1076 


55 Leonis 


598 


59 Leonis 


599 


65 Leonis 


1282 


8 Leonis 


604 


/8 Leonis 



240 

'247 
252 

252 



105 

I I 2 
112 
113 

"3 
116 



XX 



General Catalogue of Double Stars 



913 



314 

320 

321 

94 



Star 



Page 



Leo Minor 
40 Leonis Minoris 

Lepiis 
Leporis 3 
^ Leporis 
Leporis 45 
Leporis 61 

Libra 



106 


/x Librae 


085 


Piazzi XIV. 229 


.618 


t' Librae 




Lynx 


758 


Lyncis 51 




Lyra 


253 


Lyrae 28 


968 


t, Lyrae 


293 


/3 Lyrae 


648 


B.A.C. 64S0 




Microscopitim 


766 


2 Microscopii 


767 


Lacaille 8809 




Monoceros 


16 


3 Monocerotis 


17 


4 Monocerotis 


566 


Monocerotis 21 


567 


Monocerotis 23 


570 


II Monocerotis 


897 


Monocerotis 97 


268 


24 Monocerotis 


332 


P VIL 116 



57 
64 
68 
72 



137 

139 
141 



88 



180 
181 
183 
T85 



228 
229 



74 
74 
76 
76 

79 
82 
86 
89 



y8 


Star 


Page 




Ophhichus 




626 


(j> Ophiuchi 


151 


1117 


24 Ophiuchi 


154 


1118 


17 Ophiuchi 


158 


282 


S. D. (14°) 4585 


159 


126 


B.A.C. 5839 


162 


1251 


B.A.C. 5991 


167 


1124 


67 Ophiuchi 


169 


1 1 25 


68 Ophiuchi 


170 


637 


W XVIII. 28 
Orion 


172 


553 


0" Orionis 


56 


555 


^ Orionis 


59 


188 


T Orionis 


61 


558 


8 Orionis 


65 


1048 


Lalande 10437 


65 


1032 


<T Orionis 


68 


1056 


fjL Orionis 


74 


96 


75 Orionis 

Pegasus 


77 


685 


2 Pegasi 


230 


989 


K Pegasi 


234 


290 


34 Pegasi 


244 


1144 


■(} Pegasi 


250 


718 


64 Pegasi 


260 


720 


72 Pegasi 


262 


733 


85 Pegasi 

Perseus 


268 


874 


5 Persei 


28 


1170 


X Persei 


29 


875 


9 Persei 


29 


521 


Persei 67 


32 


524 


20 Persei 


34 


526 


)8 Persei 


36 


1179 


34 Persei 


39 


535 


38 Persei 


41 


1183 


B.A.C. 1142 


42 



Introduction 



XXI 



/3 


Star 


Page 






Pisces 




302 




Piazzi 0. 245 


14^ 


303 




Piscium 201 


16 


1029 


t, Piscium 


18 


II64 


95 


Piscium 


21 


506 


'? 


Piscium 


22 


5 


103 


Piscium 


23 


730 


27 


Piscium 


267 



Piscis Australis 



276 


1] Piscis Australis 


239 


772 


8 Piscis Australis 
Sagitta 


253 


57 


Lalande 38415 
Sagittarius 


201 


283 


B.A.C. 6088 


169 


245 


Sagittarii 46 


172 


292 


\x. Sagittarii 


173 


286 


16 Sagittarii 


174 


760 


■t] Sagittarii 


175 


1033 


v' Sagittarii 


184 


654 


52 Sagittarii 


193 


1288 


55 Sagittarii 


196 


763 


K^ Sagittarii 
Scorpio 


206 


36 


2 Scorpii 


145 


622 


■K Scorpii 


146 


947 


/3 Scorpii 


146 


39 


II Scorpii 


147 


120 


V Scorpii 


148 


1116 


B.A.C. 5600 


153 


416 


Scorpii 185 
Sculptor 


160 


391 


k' Sculptoris 


I 


1013 


8 Sculptoris 


266 



P 


Star 


Page 




Serpens 




348 


2 Serpentis 


139 


32 


6 Serpentis 


142 


619 


Serpentis 55 


144 



Taurus 

544 36 Tauri 

547 47 Tauri 

87 I Piazzi IV. 53 

1 186 Tauri 248 

550 a Tauri 

551 96 Tauri 
1045 99 Tauri 
1007 126 Tauri 
1054 136 Tauri 

Ursa Major 

1067 o Ursae Majoris 

107 1 B Ursae Majoris 

1077 a Ursae Majoris 

918 Lalande 22496 

919 W"^ XL 1013 
1082 I 78 Ursae Majoris 

Virgo 

923 Virginis 168 

924 31 Virginis 
929 48 Virginis 
932 Virginis 550 
612 B.A.C. 4559 
935 86 Virginis 

225 I Lalande 26320 

Vulpecula 

248 2 Vulpeculae 

1 130 9 Vulpeculae 

983 B.A.C. 6966 

447 Vulpeculae 129 

767 Lacaille S809 



45 
46 

47 
48 

49 
53 
56 
69 
72 



99 

106 
112 
117 
117 
122 

120 
121 
1.23 

1 26 
127 
128 
134 



190 

193 
204 
229 
229 



General Catalogue of Double Stars 



NEW BINARY STARS 

All of the most interesting of the known physical pairs have small apparent distances, and are 
difficult objects when compared with those in slow motion. As these catalogues, commencing with 
the first, contained an unusual proportion of close pairs, it was evident that sooner or later they 
would contribute a large number of physical systems. This expectation has been realized, and to 
an extent which could hardly have been anticipated within the time covered by the observations. 
The extreme range of the measures is but little more than twenty-five years, and the greater portion 
of the micrometrical work commenced at a later date. There is little doubt that this catalogue will 
furnish far more binaries than are found in all the voluminous early lists. There is nothing remark- 
able in this when the character of the stars with respect to distance is taken into account. As 
already stated the old catalogues contain a large proportion of very wide couples, where the dis- 
tance between the components is much too great to make any physical connection between them at 
all probable. But it must be remembered that at least some of the instruments used by these 
observers could not compare favorably with modern refractors, and particularly with telescopes 
made by the Clarks ; and even when those observers had had more powerful instruments in point of 
light-gathering power, as in the case of the Herschels, there can be no doubt that they were far 
inferior in definition, and in every practical respect for observations of this kind, to the 6-inch 
refractor with which so much of my work has been done. A glance at the list of old pairs to which 
new and more difficult components have been added will be sufficient on this point. I have shown 
in the appendix to my Thirteentli Catalogue that my several lists which had been published at that 
time include more double stars of Class I (where the distance does not exceed I " ) than all of the 
various catalogues of both Herschels and both Struves, notwithstanding the fact that the works of 
these eminent astronomers contain altogether not less than 7400 double stars. 

It is only among the very closest pairs that rapid binaries are found, and it is certain that 
when the very close pairs, and particularly those discovered with the 36-inch, are fully observed, 
many wonderful systems of short periods will be brought to light. It is unfortunate that there are 
not more telescopes in the world powerful enough to take part in the work of reobserving these dif- 
ficult pairs. But few short-period binaries are yet known. In all the old catalogues above referred 
to, there are but six whose orbits have been been computed where the periodic time is less than fifty 
years. This catalogue contains not only the binary of the shortest known period, but it has several 
with periods of less than thirty years ; and this number will be largely augmented when many of the 
stars known to be rapidly changing have been more fully measured. 

The list of binary and probably binary stars which is given in this general catalogue must be 
regarded as only provisional. For many of the stars, and particularly the later discoveries, the evi- 
dence is insufficient when the relative motion is not rapid. Most of the pairs in the binary list are 
placed there because of the change, more or less rapid, shown by the micrometrical measures. In a 
few instances this may be the result of proper motion, but in the great majority of cases it is true 
orbital motion. A few examples are also included where the primary has a well determined proper 
motion, which the measures show is common to both stars. This fact sufficiently establishes a 
physical relation between the components, although the relative motion may be very small. 

In the following table I have classified the stars in the order of their numbers. In these cases 
the evidence seems to warrant the conclusion that they are probably physical systems. For the 
numbers marked with a * orbits have been computed. 



Introduction 



XXUI 



* 



4 

5 

7 

i6 

17 
28 

31 
32 
35 
36 
39 
63 
64 
75 
79 
80 

83 

lOI 

105 
106 

113 

117 

120 

130 
132 
142 

148 
151* 

152 
163 
172 
182 
232 
205 
208 
235 



Page 

19 
23 
27 
74 
74 
120 

138 
142 

144 
145 
147 
2og 

215 
238 

258 

259 
32 
92 

105 
137 
126 

135 
148 
168 

173 
191 
198 
211 
2 16 
226 
244 
258 
12 
99 

lOI 

17 



Page 



237 
239 
271 

279 
281 
286 
287 
290 
291 
302 
320 
348 

367 
382 

395 
416 

456 
491 

5^3 
524 

525 
531 
533 
535 
536 
543 
547 
550 
552 

555 
560 

581 
587 
590 
599 
603 



* 



126 

139 
226 

264 
271 
174 
187 
244 
245 
14 
64 

139 
218 
252 

9 
160 

"5 
9 
27 
34 
35 
38 
40 

4t 
42 
44 
46 

49 
54 
59 
71 
95 
102 
106 

113 
116 



608 
61 2 
620 
625 
627 
631 
633 
637 
639 
641 
648 
658 
668 
670 

675 
683 

696 
701 
710 
711 
717 
718 
720 
730 

733* 

741 

753 
760 
766 
769 
785 
794 
800 
816 
823 
858 



Page 



124 
127 
144 
150 
154 
166 
168 
172 
176 
177 

185 
197 
210 
211 

215 

229 
240 

245 
250 

251 
259 
260 
262 
267 
268 

35 
80 

175 
228 
241 
28 
116 
125 
152 
155 
264 



Page 



870 

874 

877 

878 

883* 

886 

894 

895 

897 

901 

911 

924 

929 

932 

935 
940 

947 

953 

962 

971 

989* 

992 

996 

999 
1000 
1004 
1007 
1008 
1009 
1013 
1022 
1028 
1029 
1031 



271 
24 
28 
33 
39 
S3 
61 
76 

77 
82 

87 
108 
121 
123 
126 
128 

134 
146 

153 
166 

183 
234 
258 
266 

20 
22 

45 
69 
76 

85 
266 

84 
14 
18 

49 
68 



General Catalogue of Double Stars 



^ 


Page 


/8 


Page 


/3 


Page 


^ 


Page 


1034 


219 


1087 


148 


1117 


154 


1179 


39 


1035 


228 


]o88 


155 


1118 


158 


I 212 


232 


1046 


57 


1089 


165 


1 125 


170 


1220 


257 


1047 


58 


1090 


165 


1131 


195 


1240 


66 


1055 


73 


1092 


249 


1 146 


251 


1241 


74 


1058 


75 


1095 


5 


1147 


255 


1246 


132 


1067 


99 


1099 


14 


1163 


20 


1251 


167 


I07I 


106 


I lOI 


19 


1 164 


21 


1260 


207 


. 1077 


1 12 


1103 


23 


1174 


36 


1266 


261 


• 1082 


122 


1 1 1 1 


133 


1176 


37 


1281 


no 


1085 


139 















QUADRUPLE STARS 

This catalogue furnishes a number of examples of double-double stars, of the € Lyrae type, but 
with the pairs separated by a much smaller distance. Strictly speaking e Lyrae should not be called 
a quadruple star, as the distance between the pairs renders it almost, if not quite, certain that they 
can have no physical relation, unless it is assumed from a small common proper motion. It is 
probable that many of the examples selected from this catalogue, although the distances are very 
much less, are too widely separated to give any presumption in favor of their belonging to one 
system. Of course, two double stars would be on no better footing, so far as this question is 
concerned, than two single stars within the same distance. 

The distance between e^ and e^ Lyrae is about 207". In the following list none of the stars 
have more than half that distance, and in most instances the component pairs are much closer. 
They are arranged in the order of the separating distance. 



/3 


AB 


CD 


A AND C 


Page 


/8 


AB 


CD 


A AND C 


Page 


973 


// 
1-7 


3-7 


11 
II. I 


186 


120 


0.7 


1.8 


41. 1 


148 


368 


0.6 


5-1 


12.2 


222 


886 


17.6 


0.8 


48.5 


61 


1210 


2-5 


4-3 


14.0 


220 


366 


1.2 


1.4 


50-7 


27 


639 


0.1 


8.1 


17-3 


176 


285 


1.6 


2.0 


60.1 


175 


935 


1.6 


2.0 


27.1 


128 


876 


1.2 


6.2 


70.7 


30 


836 


0.8 


1-3 


27.4 


223 


806 


0.7 


1.2 


72.0 


136 


I lOI 


2.9 


2.9 


27.4 


19 


321 


0.8 


1.4 


89-3 


68 


141 


0.8 


4.9 


28.7 


190 


898 


3-0 


1.8 


97.2 


83 


1049 


0.6 


1.6 


29.2 


65 


1202 


0.6 


3-9 


103.8 


169 



Introduction 



DISTRIBUTION IN MAGNITUDES 

The following diagram shows the distribution of these pairs in magnitudes. The magnitude 
on the lower part of the diagram is of course that of the primary to the nearest whole number. As 
would be expected the maximum is reached at the eighth magnitude. A map showing the 
distribution in the heavens of the first one thousand double stars is given in my Thirteenth Catalogue. 



500 
400 
300 
200 
100 


































1 


\ 


















/ 




















































_ 


^ 















lO' 



REJECTED DOUBLE STARS 

The numbers mentioned below are not given in this General Catalogue, as they are identical 
with pairs found in other and prior works. 



/3 29 = H 1218 
58^ 2 2629 rej. 
99 ^ S 1007 rej. 

no = H 2036 

187 = Dembowski 

362 = OS 406 

444 = Omitted number 



/3 562: 

594: 
644: 
667: 



02 122 

:0S 216 
:H 864 

2 2656 



737 = O. Stone 
1038 = 02 510 
1057 ^ 02 129 



UNPUBLISHED MEASURES 

I am under deep obligations to many well-known double-star observers in this countrv and in 
Europe for unpublished measures of these stars. This catalogue contains several thousand obser- 
vations which have never been printed elsewhere. The following astronomers have kindly furnished 
me with most valuable material for this work : 

AiTKEN, Lick Observator}'. 

Barnard. Yerkes Observatory. 

Brown, Naval Observatory. 

Christie, Greenwich Observatory. 

CoGSHALL and Boothroyd, Lowell Observatory. 

DooLiTTLE, Flower Observatory. 

HussEY, Lick Observatory. 

See, Naval Observatory. 

ScHfAPARELLi, Royal Observatory, Milan. 

Strove, H., Universitats Sternwarte, Konigsbcrg. 

Wilson, Goodsell Observatory, Northfield, Minn. 



General Catalogue of Dotible Stars 



When it was definitely arranged to publish this catalogue, it was evident that its value would 
be greatly increased by giving, as far as practicable at this time, a complete history of each pair, so 
that the change, or absence of relative motion, could be fairly inferred in all pairs from the measures 
given. There were many pairs, and particularly among those discovered at the Lick Observatory 
from 1888 to 1892, which had not been re-observed, and therefore nothing was known concerning them 
as to the question of motion. In other instances there were no very recent measures, and the earlier 
observations were not sufficiently numerous, or extended in point of time, to show the character of 
the relation between the components, In order to supply these needed observations, I prepared and 
sent to Aitken, of the Lick Observatory, from time to time, special lists of these objects, which 
included the closest and most difficult stars to measure in the entire catalogue, and requested him to 
undertake their measurement with the 36-inch. These lists also included some pairs which had 
apparently become single from rapid motion, and others of a more or less doubtful character. This 
request received a hearty response, and he entered upon the work with enthusiasm and zeal, and has 
contributed results which, without his assistance, would be wanting here. I wish to record here my 
high appreciation of the great value and accuracy of these measures. Other measures have been 
made by the same observer while this catalogue was passing through the press, but received too late 
for insertion in their proper places, and these, with measures by other observers, will be given in a 
supplement at the end of this work. His last published series of measures in A.N. 3585, giving the 
observations of 1898, was received in printed form after a considerable portion of this work was in 
type. The measures are all given in this catalogue, but only those after R.A. 17*^ lO™ are referred 
to by the above A.N. number. 

Lists of other stars were sent to, Brown, of the Naval Observatory ; to Doolittle, of the Flower 
Observatory ; to the observers of the Lowell Observatory, and to Wilson, of the Goodsell Observa- 
tory, and their valuable results are given in this catalogue. Doolittle has measured a large number 
of pairs with the iSj^-inch. These will soon be published in Vol. I. of the Publications of the 
Flower Observatory, and they are therefore cited in the references in this way. I am also indebted 
to the Astronomer Royal of Great Britain for a large number of measures of close and difificult pairs, 
made principally by Lewis, Bowyer, Bryant and Dyson, with the 28-inch of the Royal Observatory 
at Greenwich. 

The unpublished measures of Schiaparelli with the 18-inch refractor of the Royal Observatory 
embrace a large number of objects, altogether more than 1200 measures, and cover a period of not 
less than ten years. It is unnecessary to say that the measures of this distinguished observer are of 
the highest value. 

The unpublished measures by See were made during his connection with the Lowell Observa- 
tory with the 24-inch, and, like the subsequent observations of Cogshall and Boothroyd at the same 
place, are principally of southern pairs. The observations by H. Struve were made with the 30-inch 
Clark refractor, at Poulkowa, about 1885, while he was Connected with that Observatory; and those 
by Hussey with the 36-inch at the Lick Observatory. 

My own unpublished observations with the 40-inch have already been referred to. The work 
with this instrument also includes measures by Barnard of special objects of interest, of which some 
will be found in the supplement. 

PROPER MOTIONS 

As far as practicable I have given the proper motions of all the stars in this catalogue where 
the value has been deduced from meridan observations. A knowledge of this movement has an 
important bearing in determining the question of physical relation. Where the components are 
moving together in space, there can be but little doubt of their forming binary systems, although 



Introduction 



the relative change may be insignificant in the comparatively short time covered by the observations. 
In this examination I have given the first place to the investigations of Auwers as found in his 
Catalogue of the Bradley Stars, Finidamental Catalogue, and contributions on this subject in the Astro- 
nomische NacJiricJiten, and other publications. The new catalogues of the AstroiioniiscJicii Gesellschoft 
have furnished the proper motions of a good many of the lower magnitudes. Other material has 
been obtained from the Greenwich, Radcliffe, Cape, Cincinnati, and other catalogues, and also from 
the recent works of Kustner, Bossert, and others. Porter, of the Cincinnati Observatory, has fur- 
nished information concerning many stars which appeared from the micrometrical measures to have 
some rectilinear movement, and which had not been recognized heretofore in the meridian obser- 
vations. 

I am specially indebted to Professor George E. Hale, Director of the Yerkes Observatory, for 
his hearty assistance and cooperation in the prosecution of the work at this Observatory, and in its 
preparation and publication. 

This volume in printed form owes its existence to the interest and liberality of that generous 
patron of astronomical science. Miss Catherine W. Bruce, of New York City. Her large gifts in aid 
of original research, in providing instruments and means for the prosecution of work, and the publi- 
cation of observations and investigations, have been widely distributed, not only in this country, but 
abroad. The results already achieved in widely different fields are of the highest importance, and 
with the results yet to follow in the near and in the far future, will form a monument to the memory 
of this benefactor of Astronomy, which will endure for all time. 

S. W. BURNH.\M. 

Chicago, December 6, 1899. 




EYE END OF THE 40-INCH TELESCOPE OF THE YERKES OBSERVATORY 




MICROMETER OF THE 40-INCH TELESCOPE 

MADE BY WARNER 4 SWASEY 



ABBREVIATIONS. 

Most of the abbreviations of observers and publications used in the measures will be readily understood 
from the references given at the end of each double in the catalogue. The following only need a further 
explanation : 

A. N. Astronomische Nachrichten. In the references, the Arabic figures in parenthesis, without 

other designation, following the name of the observer, e. g., /3 (3114), indicate, in all cases, 
the number of the A. JV. in which the observation is made. 

)8' Double Star Observations made in iSyy-S at Chicago, with the i8yi-inch refractor of the 

Dearborn Observatory, co77iprising: I. A catalogue of 2§i Jiew double stars with measures; 
II. Micrometrical measures of _§00 double stars. Memoirs of the Royal Astronomical Society, 
Vol. XLIV. (This volume contains my Tenth Catalogued) 

P" Report to the Trustees of the Jaynes Lick Trust, of observations made on Mt. Hainilton, with 

reference to the location of the Lick Observatory, iSyg. (This contains \\\t Elevejith Catalogue 
and measures of other stars. It is reprinted in Publications of the Lick University, Vol. I.) 

/33 Double Star Observations made in iS^Q-So with the i8}^-inch refractor of the Dearborn 

Observatory. I. Catalogue of i^i new double stars with measures. J I. Micrometrical measures 
of 770 double stars. Memoirs R. A. S., Vol. XLVII. [Thirteenth Catalogue.) 

(3* Publications of the Washburn Observatory, Vol I. {^Twelfth Catalogue, and measures of other 

stars.) 

Cin^, Cin"*, etc. Publications of the Cincinnati Observatory, Nos. 3 to 6. (Measures of double stars by Stone, 
Howe, Upton, and Egbert, from 1875 to 1880. No. 10 of this series contains measures 
by Wilson.) 

A Dembowski. 

J (I) Misure Micrometriche di Stelle Doppie e Multiple fatte negli anni 18^2-1878 dal Barone Ercole 

Defnbowski. Roma 1883. (Vol. I contains the measures of /3 stars ; Vol. II the Struve stars.) 

Glasenapp (I, ) The Roman numerals refer to the five series of micrometrical measures made by the 
II, III, IV, V) f Director of the Observatory of the Imperial University of St. Petersburg, and published 
from 1892 to 1899. 

H' Sir William Herschel. 

H" Sir John F. W. Herschel. 

Hall (I) Observations of double stars made at the U. S. Naval Observatory by Asaph Hall. Appendix 

to the Washington Observations for 1877. (Measures with the 26-inch 1S75-1879.) 

Hall (II) Observations of double stars made at the U. S. Naval Observatory i88o-i8gi by Asaph Hall. 

Appendix to Washington Observatory for 18SS. 

LM Publications of the McCormick Observatory of the University of Virginia, Vol. 1. Part 4. 

(Measures of double stars with the 26-inch refractor in 1SS5-6 by F. P. Leavenworth and 
Frank Muller.) 

xxix 



XXX General Catalogue of Double Stars 



Lv' Micrometrical Measurements of Double Stars made at the Haverford College Observatory 

by F. P. Leavenworth. (Measures in 1888 with the lo-inch Clark refractor. A few of 
the measures by student assistants.) 

Sp (II) Osservazioiii Sulle Stelle Dapple 1875-1885 da G. V. Schiaparelli. Milano, 1888. (A prior 

series of measures of the Struve stars was published in 1882.) 

Sp (III) Unpublished measures by Schiaparelli, made at Milan, 1889-1898. 

Wilson (Cin.'°) Publications of the Cincinnati Observatory No. 10. (Double star measures 1882-1886, principally 
by H. C. Wilson. The unpublished measures by the same observer were made with the 
16-inch of the Goodsell Observatory, Northfield, Minn.) 



A General Catalogue of the Double Stars discovered by 
S. IV. Burnham from iS-j i to i8gg, arranged in 
order of Right Ascension. By S. W. Burnham. 



P II55- D.M. (3")4932 

R.A. o'' 0" 26= \ 
Decl. + 3° 30' S 

o II 

1890.82 90.4 0.44 8.7... 9.3 yi /8 

1898.64 91. 1 0.42 8.7... 9.0 2« A 

Discovered with the 36-inch. Apparently with- 
out change. 

[i3(xvil)...i3 {3047).. .^ (/'?/(!'. Z.C II.)... Aitken ( )...] 





P IOI4. La 


lande 47287 










R.A. 0" 


I"™ 24= ) 
1° 0' \ 










Decl. -f 3 






1882 


340 ± 


11 
2 ± 


7 . ..12 




^ 


1891.70 


335-9 


1.50 


7.0. ..12.5 


3" 


/? 


1897.94 


304.1 


I-15 




V^ 


L 


1898.65 


337-4 


1-55 


7.0 .. . 13.0 


211 


/3 



Discovered with the 18 3^ -inch. Probably no 
relative change. According to Porter this star 
has no appreciable proper motion. 

[/3 (xiil)...(33 (app.)...i3 (3ii3)...iS {Pub. L. O. 11.)... 
Lewis {Moil. Not. Lix, 400). . . J 



P 391. K' Sculptor is 





p 


483. La 


lande 47348 










R.A. 0'' 


2'^ 50^ ) 

40° II' \ 










Decl. + 






1878.66 



44-7 


11 
2-37 


7.5.. .11.8 


\n 


fi 


1885.83 


44.0 


3-09 




2 II 


H2 


1891.70 


44-1 


2-95 


7.2. .. I 1.7 


V 


/8 


1898.59 


42.7 


3-05 


7.5.. .10.7 


211 


^ 



Discovered with the i8j,^-inch ; one of a wide 
pair. Probably unchanged. 

[^(x)...^'.../3(3ii3)...|3(/^«^. Z. 0. 11.)... 112 ( )...| 



R.A. 



3"' 14' 



Decl. — 28' 39' 



1876.79 


97-2 


0.78 


6.0. . 


. 6.2 


m 


Cin 


1877.74 


97.1 


0.87 


6.2. . 


. 6.3 


3« 


Cin 


1888.88 


92-5 


0.94 


6.1. . 


. 6.1 


6« 


Lv 


1892.88 


88.0 


0-75 


6.1. . 


. 6.1 


2« 


Gl 


1893.91 


91.0 


0.74 


6 .. 


. 6 


2« 


Sel 


1894.94 


92.0 


0.94 






Z'i 


Sel 


1895.83 


91.0 


0-93 






3« 


A 


1895.85 


91.0 


0.98 






3« 


Scott 


1897.07 


93-5 


1.24 


6.4.. 


. 6.4 


3« 


See 


1897.95 


271.2 


I. II 


6>^.. 


• ey^ 


4« 


Scott 


1898.69 


270.1 


1.09 


7.0. . 


■ 7-2 


2« 


Bd 



Discovered with the 6-inch. The measures do 
not show any certain change. 

[|3 (vii). . ./3 (2103). . .Cin3. . . Cin-". . . Lv'. . . Glasenapp (ll) 
Sellers (3420,3303) . . . Scott {Brit. Ait. Asso. vi. 368) 
{Man. Not. Lix, 427) . . . Aitken (3395)... See (3495)... 
Boothroyd ()...] 



P 484- D.M. (5i")q 



R.A. o"^ 3™ 29= \ 
Decl. -1- 51" 22' \ 



1878.66 156.3 1.95 7.7. ..II. 9 

1885.74 154.7 1.90 

1890.90 154.6 1. 91 

1891.70 156.1 1.86 



2>l (3 

2fi H2 
7. 7... 1 1. 7 yi (i 



7.6. .. 1 1.5 yi 13 



Discovered with the iSj^j-inch. 

[^ (X) ... /3'... /3 (3048.3113) ... /3 (Put: /.. O. II.) 
HS ( )...| 



General Catalogue of Double Stars 





li 


253. D.M 


•(57") 


15 










R.A. 0" 4' 


" 8= ) 
° SI' \ 












Decl. +57 








1875-95 




49.9 


0.42 


8.3-.. 


8-5 


5« 


J 


1889.28 


50.8 


0.65 


8.3... 


8-3 


yi 


iS 


1891.52 


47.2 


0.60 


8-3.-- 


8.4 


211 


/? 



P 255. Lalande 54 



Discovered with the 9.4-inch at the Dartmouth 
College Observatory. This is the n star of a wide 
pair, 38' « of /3 Cassiopeiae. 
[(3 fv). . ./3 {Mon. Not. xxxv, 31). . .(3 (2956,3113). . .^3 (^Pub. 

L. a 11)...^ (I)...] 





P 


485. D.M. (57°) 


22 










R.A. oh 4™ 29= ) 
Decl. + 58° 6' \ 


















1878.17 


148^5 


II 
0.41 8.7.. 


9.0 


2« 


? 


1889.55 


307-4 


0.44 8.5.. 


8.6 


3« 


/? 


1890.93 


120.2 


o.4± 




\n 


Sp 


1891.52 


307.6 


0.43 8.5.. 


8.5 


2« 


^ 


1892.96 


305-9 


0.28d= 




5^' 


Sp 



The duplicity of this star was suspected at the 
time of finding the preceding pair, and subse- 
quently verified with the i8j^-inch. It is one of 
a small triangle of stars between /8 253 and ;8 Cas- 
siopeiae. 
[^(x). . ./3'. . .^(2956,3113). - .^{Pub.L. O.u).. .Sp.(iii). . .] 





p 


254. 0. Arg. N. 74 










R.A. 0" 5" 14^ I 
Decl. + 59° 6' \ 


















A and B 






1875-71 




237-7 


7.41 7.5. ..II. 5 


4« 


A 


1884.76 


240.0 


7.42 7. 9... 10. 9 


6« 


En 


1893-51 


235-6 


7.40 7.7 .. - 10.8 


3;/ 


W 


1898.74 


237.6 


7.17 8.0. . . 10.7 
A and C 


2// 


iS 


1893-51 


240.3 


38.16 . . . 12.2 


2tl 


W 


1898.74 


241.4 


38-35 ...II.I 


2« 


/3 



Discovered with the 9.4-inch at the Dartmouth 
College Observatory. Apparently fixed. 

[/3(v). . .^{Mon. Not. xxxv, 7,1). . .A (i). . .Engelmann (2742) 
...Wilson ( )...] 



1875.76 
1880.57 
2.62 
7-25 
8.55 



0.87 
1896.83 
1897.81 
1897.88 



99-0 
106.7 

93-5 
101.2 
105.9 

98.4 

97-9 
107-5 

91.7 

99-3 



R.A. oh 5" 
Decl. + 27' 

// 
0.38 

0.49 

0.63 

0.56 

0.52 

0.48 

0-59 
0.44 

0-53 
0.45 



38= 
45' 

7-5 
7-5 
7-5 



7-5 



4« d 

m 02 

4« Sp 

S« HS 

4« Sp 

3« /3 

i« Lew 

3« Bow 

yi Lew 

at the Dartmouth 



7-8 

8.5 
9.0 



8.4 



Discovered with the 9.4-inch 
College Observatory. There is no evidence of 
change. This star has no appreciable proper motion. 

[/3(v).../3 {Afon. Not. xxxv, 31). . .;83. . .;8 (3048)... /3 (Pud. 
L. a 11) ... /I (i) ... OS {Poulkowa Obsns. x) . . . Sp (in) . . . 
Lewis and Bowyer {Mon. Not. Lix, 400). . .HS ( ). . .] 

P 1026. Lalande 58 

R.A. oh 5™ 50= } 
Decl. + 52° 57' \ 

1888.76 329^6 ©"48 8.1... 8.9 4« /3 

Discovered with the 12-inch. This star is 6.5 in 
D.M., and 7m in L. 

[i3 (xiv). . .|3 (2875)- - -i3 {Pub. L. O. II). . .] 



564. D.M. (34°) 12 






R.A. oh 6" 40' ) 






Decl. -f 34° 40' \ 






II 
1.60 8.9 . . . 12.3 


4« 


/8 


2.03 8.4. ..II. 5 


3« 


/3 



1880.77 138.6 

1891.70 136.4 

Discovered with the i8j^-inch. 
[^ (.xin). . ./33. . ./3 (3113)- - -P {Pub. L. O. II) 





p 


998. L 


al 


ande 


130 










R.A. oh 


7 


"30= 


I 










Decl. -f 


5 


° 55' 


\ 






1881.86 


II4.9 


// 
1.04 




8.7. 


.. 8.7 


3« 


/8 


1891.68 


"4-5 


1.23 




8.3. 


.- 8.5 


3« 


P 


1898.70 


II5-3 


1-39 




8.8. 


. . 9.0 


3« 


^g 



Discovered with the 12-inch. No change unless 
in distance. 
[P (xiii).../33...,3 (3ii3)...(3 (Pub. L. O. 11). . .Cogshall 



Discovered from iSyi to i8gg by S. W. Burnham 



P486. Cctiii 







R.A. o'^ 


8™ 19' ) 
8° 27' \ 










Decl. — 






1877.87 



4-3 


// 


5.5.. .10.0 


\n 


Cin 


1878.54 


5-2 


2.81 


6.0 . . . 12.0 


4>i 


/8 


1879.76 


6.3 


3-05 


5.8. ..10.5 


211 


Cin 


1886.86 


3-4 


3-31 


6.0. . . 11.5 


2/1 


LM 


1888.91 


5-3 


3-09 


5.0. . . I I.O 


\)l 


/3 


1898.68 


8.8 


3-13 


5.7. ..II. 5 


2« 


Bd 


1898.78 


2.9 


3-03 


6.0. . . 12.0 


\n 


Cg 



Discovered with the 18)^ -inch. Apparently 
fixed. This star (^L 158) is 6 m in Argelander 
and Heis. 

[i3 (x)...,8'...;83...,34...j3 (2956)... /3 {Pub. L. 0. 11)... 
Cin3 . . . Cin't . . . LM . . . Boothroyd and Cogshall ( ) . . . ] 



P 1027. D.M. (20°) 15 



R.A. 0^ 8"- 44= 
Decl. -|- 20° 53' 



1888.92 


186.8 


1-54 


7.2. 


.10.3 


3^ 


/8 


1891.85 


187.4 


1-55 


7-7- 


.11.5 


3« 


(i 


1895.90 


180.5 


1.38 




. 


in 


L 


1897,89 


180.9 


1.62 


. 




yi 


A 



Discovered with the 36-inch. This star isW^O. 
200. 

[|3 (xiv). . .|3 (2875,3113). . .j3 {Pub. L. O. n). . .Lewis {Moti. 
Not. LVI, 359) {Greenwich Obsns., 1895). . . Aitken {A.J. 
429)...] 

p 487. W= 0.241 



R.A. 0'' ID" 18' 
Decl. -f 28° 38' 







B ar 


id C 








1878.25 


265% 


II 
2.04 




. .12.5 


211 


/8 


1891.64 


266.5 


2-39 




..II. 5 


211 


^ 


1898.72 


266.2 


2.54 




..II. 5 


211 


/8 



A and B (= S 17) 



1828 


29.4 


20±: 


8 . . 


. 9-10 


\n 


H 


1830.05 


29-3 


26.33 


8.0. . 


. 9.2 


211 


2 


1847.43 


29.2 


26.85 






2n 


Ma 


1866.17 


29.6 


26.76 


7.8.. 


. 9.2 


3'' 


J 


1878.77 


28.9 


27.06 






111 


/8 



1891.64 


29.4 


26.98 


8.1. . 




2)1 


ft 


1892.96 


29-5 


27.17 


8.0.. 


. 9.2 


2n 


Gla 


1898.72 


29-5 


26.88 


8.2. . 


. 8.5 


211 


H 



The companion to B was discovered with the 
18^-inch. There appears to be no change in the 
components of 2 17. The foregoing are all the 
measures of AB. 

[i3(x).../3'.../3 (3ii3)...;8 {Pub. L. O. 11)... /3 {Astron. &' 
Astro-Physics xill, 16). . .Madler {Fixsterti-Systeme 11). . . 
Herschel {Mem. R.A.S. \v). . .A (n). . .Glasenapp (11). . .] 

P 392. B.A.C. 46 

R.A. 0'' 10" 31 = 
Decl. + 60° 52' 



1879.70 


68.6 


19.38 


6.0. 


. 12.0 


2« 


ft 


1888.71 


68.2 


19.80 


6.5- 


.12.3 


V^ 


ft 


1898.71 


69.1 


19.70 


6.1. 


•13 


2)1 


ft 



Discovered with the 6-inch. Probably fixed. 
[j3(vii).../33...i3 (2103,2875)... /3 {Pub. L. O. II)...] 

P 776. D.M. (49°) 40 



I681.59 202.5 
1888.88 202.0 



R.A. 0" lo™ 53^ 

Decl. + 49° 55' 

// 
0.90 8.8 . . . 9.0 yi 13 

I.I I 8.8. . . 9.2 3« Com 



Discovered with the 15^-inch at the Washburn 
Observatory. So far no evidence of change. 

[^ (xil). . ./SV . .Comstock {Pub. l-Vashbur>i Obsy. vi). . .] 





p 


393- Lai 


andc 


2( 


)I 










R.A. 0" 12 


m 12S 


i 












Decl. — 21 


^^48' 


\ 








1877.87 



6.2 


II 
o.6± 


7.0 




8.0 


i>i 


Cin 


1879-75 


II. 4 


0.77 


6.0 




8.0 


in 


Cin 


1886.81 


12.6 




7 




8 


\ti 


LM 


1890. 89 


16.0 


0.71 


7-5 




S.I 


3" 


ft 


1893.91 


12.9 


0-59 


7 




9 


2tl 


Sel 


1897.71 


i8± 


o.3±: 








\n 


See 


1898.68 


12.7 


0.69 


7-5 




9.0 


\n 


Clj 


1898.69 


10.8 


0.80 


7.0 




7-5 


1// 


ft 



Discovered with the 6-inch. Probably unchanged. 

i3(vn). . ./3 (2103,3048). . .ti{Pub. L. O. 11). . .Cin<. . .Cin«. .. 
Sailors (3240)... See (3495). . .Cogshall ( ). ..] 



General Catalogue of Double Stars 





p 


256. S.D. (i4°)48 








P 


777- D.M 


(-1O32 










R.A. 0" 


13" S3' ; 
14° 30' \ 










R.A. o'> 


14 


"56' / 

° 55' ) 










Decl. — 










Decl. - 









1876.40 


249.1 


2.31 


10. 0. . . 10.5 


yi 


J 


1881.73 


166^7 


4.09 




8.5... 9.5 


yi 


/8 


1878.79 


249.9 


2.43 


8.3... 8.8 


2n 


Cin 


1886.86 


166.6 


3.91 






2« 


UL 


1886.79 


248.4 


2.70 


8.8. .. 9.1 


2« 


LM 


1888.32 


166.2 


3-98 




8.7... 9-8 


3'' 


Com 


1893.81 


250.9 


2.70 


9.0. . . 9.2 


2>1 


W 


1891.83 


166.0 


4.08 




8 . ..10 


yt 


Col 


1898.72 


251-7 


2.51 


9.0. .. 9.2 


Ifl 


Bd 


1898.69 


167.0 


3-89 




8.2.. . 8.8 


yi 


Bd 



Discovered with the 9.4-inch at the Dartniouth 
College Observatory. Evidently without change. 
The magnitude in S.D. is 8. 

[(3 (v). . .|3 {Mon. Not. xxxv, 31). . .4 (l). . .Cin". . .Cin«. . . 
LM . . . Wilson ( ) . . . Boothroyd ( ) . . . ] 





p 


IOI5. 


La 


ande 368 










R.A. 0'' 


14' 


"27= ; 










Decl. + 


II 


°39't 






1888.56 




II4.8 


II 

0-59 




8.0. . . 8.0 


i« 


Lv 


1891.64 


120.6 


0.52 




8.4. .. 8.6 


■zn 


^ 


1897.86 


1 16.4 


0.40 






m 


Bow 


1897.93 


I 12.6 


0.46 






in 


L 


1897.96 


125.4 


0.51 






27! 


Br 


1898.86 


124.0 


0.48 






yi 


Bow 


1898.89 


118. 1 


0.51 






171 


L 



Discovered with the i8><-inch. Probably un- 
unchanged. 

[/3(xni).../33(app.)...|8 (3ii3).../3 (Pub. L. O. 11)... Lewis 
and Bowyer [Mon. Not. Lix, 400). . .Brown ( )• . •] 



1093. La 


ande 375 






R.A. o" 14"^ 445 \ 






Decl. + 10 


= 19'^ 






0-39 


7.3... 8.2 


y 


/8 


o.25±: 






yi 


Sp 


0.2 dz 








Sp 
L 


0.31 






I// 


L 


0.50 






m 


L 


0.66 


7-5 


. . 8.2 


yi 


Bd 


0.44 


7.5 


.. 8.5 


Ifl 


(i 


0-39 






m 


L 



1889.65 54.3 

1890.98 49.1 

1895.88 46.3 

1895.90 42.0 

1896.93 39.8 

1897.96 49.2 

1898.71 55.5 
1898.84 61.4 
1898.88 60.9 

Discovered with the 36-inch, 
bright stars. 

[/3 (xvi). . ./3 (2956). . ./? (Pui. L. O. 11). . .Sp. (in). . . Lewis 
[Man. Not. LVI, 359; l.ix, 400) [Greenwich Ohsns. 1895) 
. . . Boothroyd ()...] 



The/one of three 



Discovered with the 153/^ -inch of the Washburn 
Observatory. Apparently fixed. 

[/3 (xil). . .^-t. . .Updegraff and Lamb {Pub. Washburn Obsy. 
v). . .Comstock (Pub. Washburn Obsy. vi). . .Collins (Pub. 
Haverford Coll. Obsy. 1891) . . . Boothroyd ( ) . . . ] 

P 488. Lalande 465 



R.A. o'> i/"" 52= 
Decl. — 4 ■= 8 ' 



1878.40 347.9 3.32 7. 5... 10. 5 4;/ ^ 

1886.74 347.2 3.40 7. 6... 10. 9 7« LM 

1893.81 347-3 2.90 7.2...11.0 271 VV 

1898.71 346.7 3.07 7. 4... 10. 6 A,n Cg 

Discovered with the 18}^ -inch. Probably un- 
changed. 

[ /3 (x) . . . /3" . . . LM . . . Glasenapp (11) . . . Wilson ( ) . . . Cog- 
shall ( ) . . . ] 



P 489 D.M. (43°) 80 



R.A. 0'' 19"' 40"^ 
Decl. -f 43' 31' 



1878.43 182.5 3.32 8.0... 12.0 3« ^ 

1891.64 180.4 3.35 8. 3... II. 5 271 IS 

Discovered with the i8i^-inch. No indication 
of motion. 

[/3 (X). . .pK . .(33. . .j3 (3113). . .|3 (Pub. L. O. 11). . .] 

P 778. D.M. (51°) 72 

R.A. 0" 19'" 43= \ 
Decl. + 51° 10' ^ 

1881.61 47^9 1.05 9-5- - - 9-5 y ^ 

1888.37 45.0 1.24 9.2... 9.3 4« Com 

Discovered with the 15^-inch of the Washburn 
Observatory. Motion doubtful. 
[^ (xil). . .(3*. . .Comstock {Pub. Washburn Obsy. vi). . .] 



Discovered from 1871 to i8gg by S. W. Burnham 



P 1156. D.M. (63') 



R.A. 0'' 19"" 58=^ 
Decl. + 63" 46' 



1890.74 31.9 0.52 9.2... 9.3 yi /3 

Discovered with the 36-inch in examining the 
place of Tycho Brake's star. 

[/3 (xvil). . ./3 (3047). . ./3 [Sid. Mess, ix, 449). . .(3 {Pub. L. O. 
II)...] 



P 1225. W^ O. 496 



R.A. 0'' 20" 55^ 
Decl. -|- 20° 26' 



1891.85 189.3 I-I5 8. 1... II. 8 yi 13 

1898.90 187.5 ^-36 .•- 2« Bar 

Discovered with the 36-inch. The magnitude in 
D.M. is 7.3. 

[|3 (xvill). . .(3 (3113). . .^{Piib. L.O.u). . .Barnard ( ).. .] 



P 779' Lalande 592 







R.A. 0'' 


21-" 37' 1 
22° 55' s 












Decl. + 








881.67 


263.3 


// 

0.85 


8.5 -.. 


9.0 


3« 


P 


887.86 


260.4 


0.87 


8.4... 


9-2 


yi 


Com 


897-75 


253-6 


1. 18 


8+... 


9 


3« 


D 



Discovered with the 15 3^ -inch of the Washburn 
Observatory. Some change is probable. 

[/3 (xil). . ./S-t. . .Comstock {Pub. Washburn Obsy. vi). . .Doo- 
httle [Pub. Floiver Obsy. l). . .] 



P II57- D.M. (63°) 52 



R.A. 0'' 22'" 30' 
Decl. + 63° 35' 



1890.74 90.2 1.66 8. 4... II. 3 yi /3 

1897.76 81.2 1.54 8-|---..ii 3« D 

Discovered with the 12-inch; near j8 11 56. The 
magnitude is 8.0 in D.M. 

[jS (xvil).../3 (3047)... j3 {Pub. L. (). ll)...Doo!ittle {Pub. 
Flowir Obsy. i) . . . ] 



P 1094. Lalande 655 



R.A. 0'' 23"' 2<f 
Decl. -|- 59' 19' 



1889.53 244.6 0.70 5-7--- 9-5 3« /3 

1897.96 246.3 0.79 ... yi A 

Discovered with the 36-inch. This is a naked- 
eye star in Cassiopea. 

[)3(xvi). . .(3(2956). . .^{Fub. L. 0. 11). . . Aitken (y?./. 429). . .] 

P 1095. 28 A?idromedae 



R.A. 
Decl. 



oh 23"- 47S I 

+ 29' 5' ') 



1889.51 
1898.73 



0.1 

4-5 



2.42 

2-34 



5-5- 
6.0. 



13-3 
13-5 



3« 



Discovered with the 36-inch. The principal star 
has an annual proper motion of oro6i in the direc- 
tion of i59?8, according to Auwers. The effect 
of this movement would decrease the position angle 
of B 3?8, and increase the distance 0^53 in the 
interval covered by the foregoing measures. The 
change shown by the measures is in the reverse 
direction, indicating common proper motion. 

[i3(xvi). . .^ (2956). . ./3 {Pub L. 0.n)...\ 





p 


394- Lai; 


inde 678 










R.A. 0^ 24 


= 52' \ 










Decl. -f 46 






1876.77 




278.0 


It 

0.83 


8.2.. . 8.4 


3'' 


J 


1885.74 


278.5 


0.97 




4« 


H2 


1888.68 


281.5 


i.oS 


8.0. .. 8.2 


3" 


T 


1893-54 


280.1 


1.06 


8.0... 8.3 




W 



Discovered with the 6-inch. Probably unchanged. 

[;3 (vii). . .p (2103). . .A (i). . .Tarrant (2991). . .Wilson ( ) 
...HS( )...] 





p 


107. D.M 


• (62°) 93 










R.A. 0" 
Decl. + 


24 
62 


.. 31s 1 
" 41' ' 






1873-68 

1891.52 
1898.72 


36o°± 
358.S 
i54-o 


U 

2± 

4-44 
5-67 




9.0. . . 10. 
S.o. . . 9.6 
9.1 .. . 9-4 


2« 


/8 

/J 



Discovered with the 6-inch. About 25' // of k 
Cassiopciac. 



General Catalogue of Double Stars 



It would be assumed in the first instance that any 
change in a pair of very small stars, separated by so 
great a distance, would be due to the proper motion 
of one or the other. In this instance the two sets 
of measures give an apparent annual movement of 
the companion of ofi8 in the direction of 337?3. 
Carrying this back to 1873, the smaller component 
at that time would be i fSy from the primary in 
the position-angle of 37?7. This agrees well 
enough with the estimated places so far as dis- 
tance is concerned, but the agreement with the 
estimate of the angle is not very satisfactory. It is 
more difficult to judge of the direction of one star 
from another in high northern declinations, unless 
special care is taken, and this may explain the 
large error, if this is an error. In addition to this, 
allowable errors in the measure would change the 
direction of motion and give a much smaller 
position-angle for 1873. The probabilities are 
that the movement is rectilinear, and due to the 
proper motion of one of the stars, but of course 
there is nothing to indicate which one is drifting, 
beyond perhaps a slight persumption in favor of 
the brighter. The difference in magnitude, how- 
ever, is too small to make this of much importance. 

At the time of finding this pair, I assumed that 
it was D.M. (62°) 93 from its situation with refer- 
ence to two stars of similar magnitude, in the same 
field and nearly south of the double, which appeared 
to be Nos. 94 and 95 of that catalogue. 

Since making the last measure, showing change 
in the components, I have more carefully examined 
Argelander, and find that the stars in the D.M. 
do not correspond at all to the present positions 
of the stars in this vicinity. In order to compare 
the two accurately, I have connected the four prin- 
cipal stars in the field with A of the double by 
micrometrical measures. The results are as fol- 
lows : 

O II 

AC 1898.73 336.2 46.95 ...8.2 291 

AD 1898.73 146.6 50.27 ...8.3 2;/ 
AE 1898.76 171. 2 113.78 ...8.5 m 
AF 1898.76 113.9 150-44 ...8.7 m 

There are many small stars in the field, but all 
too faint for the D.M. These five stars are laid 
down to scale on Fig. i from the above measures. 
The four stars given in Argelander (Nos. 93 to 
96) are platted on the same scale, and shown in 
Fig. 2. 



180° , 



-90^ 



20 
I 1 L 



SCALE 



CO 80 
J t L 



100 

_l 



Fig. 1 



180 



•95 



03 



-90^ 



Fig. 2 



It will be seen that it is impossible to identify 
the stars in one diagram with those of the other, 
except that £ and No. 95 are probably the same. 
All of the stars in Fig. i are entitled from their 
magnitude to a place in the D.M. It is evident 
that there has been a great change in the relation 
of these stars since the meridian observations of 
Argelander, or that there are very considerable 



Discovered from iSji to i8gg by S. W. Burnham 



errors in the D.M. places of two or more of them. 
I have found it necessary, in the past twenty-five 
years, to compare the D.M. catalogues with the sky 
in the identification of small stars many hundreds 
of times, and I do not recall at this time any 
instance of serious error or omission. I have, 
therefore, a high degree of confidence in the sub- 
stantial accuracy of this great work. Unfortu- 
nately, the new catalogues of the Astronomischen 
Gessellschaft are very defective with respect to the 
D.M. stars in the lower magnitudes. Of the first 
hundred stars given in the D.M. zone of 62°, less 
than one-third are found in the new catalogue cov- 
ering this region, and all the stars in question are 
missing. So far as I know there are no meridian 
observations of them other than those in Arge- 
LANDER, and hence there is no data for determin- 
ing their previous relations to each other, and their 
proper motions. For this reason I have connected 
them together by the measures given above, so that 
hereafter the moving star or stars can be easily 
identified. It is certain that one of the compo- 
nents of the pair is moving, and there can be but 
little doubt of this being rectilinear motion ; but 
that does not appear to be sufficient to entirely 
explain the difference between the two dia- 
grams. 

[/3(lil).../3{i1/o;2. iV(7/. xxxiv, 59).. ./3 {3113).. .^{Pub.L.O. 
n ; Pop. Astronomy vil, l). . .] 



P I158. Lalande 718 



R.A. o"^ 24™ 55s 
Decl. — 10° 45' 

B and C 



1890.91 138. 1 0.26 8.6... 8.6 yi /3 

1898.76 146.7 0.43 8.3... 8.3 \n /3 

A and BC ( = H 1981) 



1890.91 


86.6 


79-31 


6.9... 


y 


/3 


1898.74 


86.5 


78.86 


7.0. .. 


211 


iS 



The wide pair constitutes the double star, H 
1 98 1. The duplicity of the companion was de- 
tected with the 36-inch. H gave the angle 84?8, 
and the estimated distance 60", with magnitudes 8 
and 9. The magnitude of the smaller star in S.D. 
is 8.6. The magnitudes assigned to A cover a wide 



range : Lalande and Schjellerup, 8 ; Cordoba, 

7^; SCHONFELD, 7.2; HeIS, 6-7. 

[(3(xvii).../3(3047)...^ {Fub.L. O. 1IJ...H {Mem. R. A. S. 
VI)...] 



P 1226. D.M. (57') 97 



R.A. 0" 24™ 58= 
Decl. +57° 29' 



1891.58 190.8 0.40 8. 5... 10. 5 3;/ ^ 

Discovered with the 36-inch. 
[/3(xvin)...(3(3ii3).../3(/'/./.. Z. O. 11)...] 



p 1227. D.M. (57^) 



R.A. 0^ 25"" 41= 
Decl. ■\- 57° 41' 

• A and B 



1891.59 206.1 2.82 7. 3... II. 6 3;/ /3 

1897.04 202.9 2.67 7. 3... II. 5 3« A 

A and C 

O It 

1897.05 87.2 22.27 •••11/^ 2« A 

A and D 

o /; 

1897.05 116. 6 32.69 ...12 2« A 

Discovered with the 36-inch. The distant stars 
added by Aitken. 

[|3 (xviii). . ./3 (3113). . .^ {Pub.L. O. II). . .Aitken (3465). . .] 



P 780. D.M. (36)79 

R.A. 0^ 26"" 0' \ 
Decl. +37° 5' S 



1881.93 144.2 2.32 8.5... 9.8 3« /3 

1886. 87 144. 1 2.37 ... \n UL 

1888.52 143.6 2.46 S.4...10.2 5// Com 

Discovered with the i5j-<-inch at the Washburn 
Observatory. 

[/3 (xni). . ./33. . ./3*. . .UpdegrafE and Lamb {Pub. Washburn 
Ubsy. v). . .Comstock {Pub. Washburn Obsy. Vl). . .] 



General Catalogue of Double Stars 



P io8. O. Arg. N. 492 







R.A. 0^ 


27 


"^43= \ 










Decl. + 


62 


°i5' \ 






1875-83 


358.1 


4.20 




7.6. . .10.7 


6« 


A 


1876.76 


358.3 


4.17 




8.0... 9.5 


\n 


02 


1885.69 


357-8 


4.40 






2H 


H2 


1888.68 


359-0 


4.28 






3« 


T 


1898.69 


358.1 


4-30 




7.0. . . 10.5 


\7l 


/3 



Discovered with the 6-inch. No evidence of 
change. The 40-inch shows four faint stars. The 
single settings are : 

337.8 : 20.87 15 m 

213.6 : 24.06 13m 

150.8 : 27.25 14m 

218.9 • 41-75 lom 

[/3 (ill). . .j3 {Mon. Not. xxxiv, 59). . .^ (l). . .OS {Poulko-va 
C/w«. X)... Tarrant (299l)...HS{ )...] 



P 490. 



Ceti 



R.A. 



0" 29" 



Decl. — 4° 15' 



1877-78 


65-3 


38.12 


6 . 


.12-13 i« 


/3 


1887.81 


60.8 


35-63 




.13 \n 


Ho 


I89I.6I 


58.9 


33-72 


5-5- 


.14.2 3« 


^ 


1898.56 


57-8 


31.28 




.13.2 211 


/3 



The faint companion was noted with the i8j4- 
inch. The principal star has a proper motion of 
or397 in the direction of 93^0 (Auwers). This 
movement fully accounts for the change in the posi- 
tion of the companion as shown by the measures. 
The minimum distance of 18" will be reached 
about 1962. My first distance in 1877 was errone- 
ously printed 37!' 12. 

In 1887 Ho thought that the principal star was a 
very close pair, 93?4:o!'3± (1887.81) i«. In 
1890 and 1891 I could not see any elongation with 
the 36-inch, and it does not appear to have been 
measured or seen since the time first referred to. 
It should be watched, but the probabilities are that 
it is not really double. 



[p (x).../3'...^ (3048,3113) 
(2977). ■■] 



.13 {Pub. L. O. n)... Hough 



P 1096. O. Arg. N. 534 



R.A. o'' 29"^ 46= 
Decl. -f 57' 51' 



A and B 

o // 

1889.61 267.7 0.22 9.5... 9.5 3;/ ^ 

B and C 



1889.60 61.8 33.38 
1898.77 61.7 33.93 



•• 8.9 yi ^ 
.. 8.3 2;/ /3 



Discovered with the 36-inch. The close pair is 
a difificult object. 

[i3 (xvi)...i3(29S6)...i3 {Pub. L. O. n)...] 



P 1097. Radcliffe 159 



R.A. 0'' 30"" 30^ 
Decl. -j- 57° 21 ' 



1889.60 251.6 

1891.56 251.7 

1897.03 241. 1 

1898.00 252.4 



■ 0.76 8.4 . 

0.48 8.1 

0.48 8+. 
0.60 



. 8.4 4;/ /? 

. 8.2 in /3 

. 8+ i;/ A 

. • 2;/ Hu 



Discovered with the 36-inch. The magnitude in 
the Radcliffe Catalogue is 7.4. and in D.M. 7.0. So 
far there is no evidence of change. 

[iS (XVI)... i3 (2956,3113)... i3(/'«/;. L. O. ii)...Aitken (3465) 
. . . Hussey ( ). • .] 



P 230. W= 0.764 

R.A. oh 30"" 59" } 
Decl. -|- 26' 39' \ 

o // 

1891.70 324.1 3.91 8.4... 9.0 yi ^ 

1898.69 323.7 3.55 8.5.. . 9.0 \u /3 

Discovered with the 6-inch. Unchanged. 

[^(v)...i3 {Mon. Not. XXXV, 31).. ./3 (3ii3).../3 {Pub. L. O. 
I.)...] 



Discovered from iSyi to i8gg by S. W. Burnham 



P 395- Ceti 82. B.A.C. 160 









R.A. o'> 


31"^ 12= 


\ 










Decl. — 


25° 26' \ 











// 








1875-84 


i35± 


o-5± 


6.0. 


. 6.0 


\)i 


/3 


1886 


85 


104.7 


0.65 


6.1. 


- 6.3 


2n 


LM 


1888 


01 


109.4 




7 • 


• 7 


\n 


Pol 


1888 


89 


109.6 


0.67 


6.0. 


. 6.4 


3« 


Lv 


1889 


99 


1 1 1.4 


0.88 


6.0. 


. 6.0 


211 


HI 


1890 


82 


112. 6 


0.74 


6.0. 


. 6.1 


VI 


;8 


I89I 


83 


115-2 


0.69 






in 


Lv 


I89I 


85 


118. 2 


0-75 


6.9. 


■ 7-2 


yi 


/3 


1897 


65 


278.2 


0.22 






211 


See 


1897 


67 


272.8 


0.25 






111 


Cg 


1897 


82 


85-9 


0-39 






m 


/3 


1897 


92 


273-7 


0.27 






3;/ 


A 


1897 


92 


275-1 


0.31 






yi 


Hu 


1898 


59 


280.4 


0.38 


6.2. 


- 6.3 


yi 


A 


1898 


69 


97-5 


0.68 


7-5- 


■ 7-5 


in 


/? 



This interesting system was discovered with the 
6-inch, and it was evident from the first that it was 
a physical pair from the large^proper motion of the 
components, since if this movement belonged to 
one of the stars only, a few years preceding its dis- 
covery it would have been a wide and easy pair, 
and hence catalogued as a double star. 

See, using the measures to 1897.67, has com- 
puted the orbit, and found a period of 16.3 years 
{A.N. 3455). This assumes a change in position- 
angle of about 180° between 1891 and 1897. From 
the slow motion in angle and distance between the 
date of discovery and the last measures in 1891, it 
seems very probable that in all the observations the 
companion star should be put in the same quad- 
rant. It will be seen from the magnitude estimates 
when the distance was the greatest that the com- 
ponents are very nearly equal, and a correction of 
180° may be considered as allowable in any of the 
measures. It is not material whether we consider 
the second or the fourth quadrant as the correct 
one for the smaller star. There is no question of 
the binary character of this pair, but if the change 
has been in a gradual approach of the two compo- 
nents, as seems most likely, the period will not be 
a short one. The measures of the ne.\t few years 
will show whether or not there has been any rapid 
angular motion. The principal measures are shown 
on the accompanying diagram. 



no° 



QKlr 



1875 



1S91 




1890 



-90^ 



,," «'V <i'-'l 0-C 

' ■ ■ I ■ I I 1 I I 

Scale 
/?395 



Some of the values for the proper motion are : 



Stumpe - 
Kustner 
Porter - 
Bossert 



1.402 in 91.3 

1.379 in 9°-6 

1.524 in 90.2 

1.409 in 91.2 

./3 {Pub.L. O. II)... Pollock 



[/3 (vii)...^ (2103,3048,3113) 

{Pub. Sydney Obsy., 1891) {Mem. R. A. 5. l). . .Lv'. . . Lv 
(Sid. Mess, vill, 77) {Froc. Haverford Coll. Obsy., 1891). . . 
Hall (11)... See {A.J. 412)... See (3455,3495). . .Aitken 
{A.J. 424, 429). . .Hussey {A.J. 427). . .] 



P II59- D.M. (39-) 148 

R.A. 0'' 32™ 28= ] 
Decl. + 40° I ' \ 

o // 

i8go.68 41.7 0.23 9-7--- 9-9 V fi 

This very minute and difficult pair, discovered 
with the 36-inch, is involved in the extreme pre- 
ceding end of the great nebula in A/idromeda. 
The magnitude in D.M. is 8.9. 

[ ,3 (xvii) . . ./3 (3047) . . ./3 {Pub. L. O. II). . . ] 
P 491. 5 Androiiicdae 



R.A. 



54^ ] 







Decl. + 


30° 12' 


\ 






1878.40 




299-3 


2 7'.' 8 6 


^ 
,) 


■ 12.5 


y 


fi 


1888.71 


299-7 


27.60 




.12.5 


I" 


H 


1890.56 


299.4 


28. iS 




. I 2.1 


3" 


a 


1898.55 


299.2 


27.90 




-13 


VI 


a 



Discovered with the 26-inch of the Naval Obser- 
vatorv. The proper motion of this star, according; 



lO 



General Catalogue of Double Stars 



to AuwERS, is ofi5i in the direction of i2o?7. 
It is evident from the measures that this movement 
is common to both stars. Assuming the measured 
distance of 1878 as correct, the distance of the 
companion, if fixed in space, should have been 
30^9 at the date of my last measures in 1898. It 
is certain, therefore, that these stars form a phys- 
ical system, although apparently relatively fixed 
for the last twenty years. 

[/3 (X). . ./3'. . .^3. . .^ (2875,3048). . ./S (Pub. L. O. n). . .] 



P 257. Lalande iok 



R.A. 0'' 33"' 37^^ 
Decl. + 46" j^'^' 



1876.04 


236.6 


0.48 


7-9- - 


. 9.0 


4/1 


J 


1891.68 


237.1 


0.65 


8.1 . . 


. 8.8 


2," 


i8 


1898.00 


244-3 


0.66 






21! 


Hu 



Discovered with the 9.4-inch of the Dartmouth 
College Observatory. Change in angle is probable. 



[i3(v). . .piMoji.JVot. XXXV, 31). . .il (I). 
L. O. II). . .Hussey ( ). . .] 



P 109. Ceti 91 



.(i(iiiZ)...(i{Pub. 







R.A. 0" 


34"' 27^ ) 












Decl. — 


11" 10' ( 












B and C 








1875.99 




159-4 


// 

I2zb 


9.0. . 


9.0 


\n 


Cin 


1876.73 


164.0 


1 1.02 


10.7.. 


1 1.2 


Z" 


J 


1893.82 


160.3 


1 1. 61 


10. 0. . 


I I.O 


\n 


W 


1898.69 


160. 1 


1 1.78 


9-5-- 


9.6 


m 


fi 


1898.79 


160.5 


11.24 


10.2 . . 


10.9 


S" 


^g 






A and C 








1876.94 


355-7 


// 
91.1 1 


7.0. . 




in 


J 


1893.82 


356-6 


91-53 


7.0.. 




in 


W 


1898.69 


356.4 


91.90 


7.0. . 




in 


/8 


1898.67 


355-9 


92.21 


6.7.. 




m 


Cg 






A and B 








1898.79 


354-8 


103-05 


6.8.. 




4« 


Cg 



Unimportant wide double companion ; noted 
with the 6-inch. Lalande 1064. 

[P (ill). . .(3 {Mon. Not. XXXIV, 59). . ..d (i). . .Cins. . .Wilson 
( )...Cogshall( )...] 



P 231. Cassiopeiae 



R.A. 
Decl. 



0'^ 38" 2= 
+ 47° 38' 



1876.31 303.9 

1878.47 303.7 

1888.71 303-5 

1898.00 303.1 



32.81 
32.16 

32-63 
32.66 



5-5. 



.12 \n 

m 

.11.6 yi 

2« 



J 
Hu 



Discovered with the 6-inch. Auwers gives as 
the proper motion of the principal star ofoi8 in 
the direction of i45?9. The movement is too 
small to say with certainty whether the two are 
moving together. 

[/3 (v)...;3 {Mon. Not. xxxv, 31). . ./3'. . ./3 (2875). . ./3 [Pub. 
Z. a II).. .zl (i).. .Hussey ( )...] 



P 492. B.A.C. 201 



R.A. 0'' 38"" 27" 
Decl. + 54° 34' 



1878.73 


152.6 


1.90 


6 . 


. 12 


2n 


/3 


1885.69 


150.70 


2.23 


- 




211 


H2 


1889.55 


152.7 


■ 2.1 I 


5-7- 


■ II. 3 


VI 


/? 


1898.65 


I5I-5 


2.12 


6.0. 


. 12.0 


211 


/3 



Discovered with the 26-inch at the Naval Obser- 
vatory. Rogers gives the proper motion of this 
star as o!'o66 in the direction of 3i7?3. The 
measures show relative fixity, and they are, there- 
fore, moving together. A naked eye star in Cas- 
siopca. 

[iS (x).../3-.../3 (2956)... /3 [Puh.L. a ii)...HS ( )...] 



P 865. D.M. (42°) 161 



R.A. 0'' 38™ 52^ 
Decl. + 42° 45' 



1880.78 197.4 

1891.83 197.4 

1898.00 195.5 

1898.95 192.0 



I. 21 8.5. 

1.30 8.3. 

1.30 
1.48 



9.0 \1l ^ 

8.8 yi /3 

211 Hu 

\n Bow 



Discovered with the 18 ^^ -inch. Without change. 
/8 866 is closely following. 

[/3(xiii).../33.../3 (3113)... |3 {Pub. L. O. II)... Hussey ( ) 
. . . Bowyer {Mon. Not. Lix, 400) . . . ] 



Discovered from iSji to i8gg by S. W. Burnham 



1 1 



P 493- D.M. (50^) 137 



R.A. 0'^ 39™ 4= ( 
Decl. + 50° 27' \ 



878.67 


51-4 


0.8s 


9.0.. 


. 9.0 


211 


/? 


891.85 


51-4 


0.77 


9.0.. 


• 9-1 


2« 


^ 


891.92 


55-6 


o-5± 






\n 


Sp 


898.76 


54-7 


0.69 


9.0.. 


. 9.2 


\n 


/? 



Discovered with the i8}^-inch. The/ of a small 
triangle of 9 m stars. There seems to be no sensi- 
ble change. There is a 3!'8 pair of stars 89" dis- 
tant in the direction of 2i6?8. 

[^ (X). . .^■. . ./3 (3113). . ■? (P"i- L. O. II). . .Sp (III). . .] 



P 866. D.M. (42°) 166 

R.A. 0" 39'" 43" \ 
Decl. -(- 42° 45 ' \ 

O II 

1880.78 68.2 1.26 9.2... 9.2 4;/ /3 

1891.83 69.6 1.39 9.0... 9.1 yi (3 

Discovered with the 183^^ -inch. Without change. 
/3 865 is in the field/. 

[/3 (xiii). . .^3. . .^ (3113). . .,3 {P,>d. L. an)...] 



P 494- 



Lalande 1266 







R.A. oh 


40" 53= 


( 










Decl. — 


1° 54' \ 






1878.20 




168.5 


1.38 


8.1 . 


. 8.1 


211 


/3 


1886.80 


171. 2 


1.36 


8.0. 


. 8.0 


3« 


LM 


1888.76 


170-5 


1.27 


8.3. 


. 8.4 


A" 


Lv 


1888.87 


171. 4 


1-39 


8.0. 


. 8.0 


\>i 


T 


1892.86 


I7I.8 


1-37 


8.2. 


. 8.2 


\n 


Gl 


1896.91 


173-I 


1.20 






\7l 


Col 


1898.65 


172.0 


1-33 


8.2. 


. 8.3 


yi 


Bd 


1898.93 


180.5 


1.62 






in 


Sol 



Discovered with the i8j^-inch. Apparently 
fixed. 

[(5J (x). . ./if". . .Lv". . .LM. . .Tarrant (2991). . .Glasenapp (11) 
. . . Uoothroyd ( ) . . .Coleman [Mem. A'. A. S. Kill) . . . 
Sol^ (3563)...] 





p 


495- Lalande 


1308 










R.A. 0'' 42 


-25= 


I 










Decl. -f 18 


' 2' 


\ 






1878.70 


230.9 


0.58 


7-5- 


■• 7-5 


\/i 


/? 


1883.80 


223.8 


0.5 






2« 


Per'y 


1885.14 


225.8 


0.60 


7.3. 


.. 7.6 


5« 


En 


1885.87 


224.1 


0.60 






2/1 


H2 


1887.98 


225.0 


0-54 


6 . 


•• 7 


2>l 


HI 


1889.92 


225-5 


0.63 






S" 


Sp 


1891.66 


224.9 


0.65 


7-5. 


• • 7-7 


v 


(i 


1896.80 


222.2 


0.57 






Ifl 


Bow 


1896.95 


221.3 


0.81 






in 


L 


1897.83 


218.8 


0.68 






\n 


Bow 


1897.87 


219.7 


0.62 






2fl 


L 


1898.76 


222.5 


0.77 


8.0. 


. . 8.2 


in 


/3 


1898.82 


220.3 


0.85 






3« 


Bow 



Discovered with the 18 ^^ -inch. The motion, if 
any, is very slow. The measures by Hall are 
erroneously credited to 02 20. 

[)3 (X). . ./3\ . .^ (3113). . .§ (Pub. L. O. II). . .J. J. M. Perry 
(Eng. Mechanic XXXVlll. 192; XXXIX, 11). . .Engelmann 
(2786)... HS ( )...IIall (11)... Lewis and Bowyer 

[Mon. Not LIX, 400). . .] 



P 301- Lalande 1350 







R.A. 0'' 43™ 21 = 












Decl. — 22° 3' 












A and B 








1891.79 


3 1 8^8 


0.90 8.3.. 
A and C 


■14 


y 


fi 


1875.92 




299.8 


II 
5± 9-0.. 


. 10. 


y 


Cin 


I89I.7S 


300.7 


11.23 8.3.. 


. 9-4 


v 


y3 


1893.92 


298.6 


10.57 9 - • 


. 10 


in 


Sel 



1898.92 300.0 11.03 8.3... S.8 i« ji 

C was discovered with the 6-inch, and in meas- 
uring that with the 36-inch the close star was 
detected. It is difficult with the large instru- 
ment. 

[|3 (VI)... /3 (2062,3 II 3)... /3 (Pub. L. O. ii)...Cin'...Sellors 
(.3240) . . . ] 



12 



General Catalogue of Dojible Stars 



P I160. B.A.C. 2 

R.A. 0'' 43" 24^ 
Decl. — 14° 13' 



30 



. 1 2.0 yi /8 
This is a naked- 



1890.69 II3-I I-I9 5-8. 

Discovered with the 36-inch, 
eye star in Cetus. The magnitude in Gould is 5.9. 
l|3 (XVII). . ./3 (3047). . .? {Pub. L. O. II). . .] 

P 232. O. Arg. N. 794 
R.A. 0" 43"-' 38= } 



1876.23 288.4 

1883.82 291.0 

1891.66 320.1 

1892.84 319.7 

1892.99 321.2 

1896.09 325.1 

1897-77 326.1 

1898.65 340.7 



1875.99 
1891.66 
1897.77 
1898.65 



292.8 
293.8 

294-3 
293.6 



Decl. + 49° 59' \ 
A and B 



0.48 8.0 

0.4 

0.41 8.0 

0.62 

o.4±: 

o.3± 

0.38 

0.31 8.0 

AB and C 

28.70 
28.40 
28.42 
28.01 



8.5 6;/ J 



in 


Per'y 


y 


/8 


\n 


Bar 


\n 


Sp 


VI 


Sp 


2n 


D 



8.0 2;/ /3 



10.2 
9.1 

9.0 



3« 

2 71 
271 



A 

D 

/8 



Discovered with the 6-inch. It is certain that 
the close pair is in moderately rapid motion. At 
the time of the discovery of this pair, in October, 
1874, the angle of AB was estimated 290°, "nearly 
in the direction of C," thus confirming the position 
found by J in 1876. 

[/3 (v). . .j3 {Man. Not. xxxv, 31). . .J. J. M. Perry {Eng. Me- 
chanic XXXIX, 11). . .Sp (ill). . ./3 (3113). . .;8 [Pub. L. O. 
11). . .A (i). . .Barnard {A.J. 447). . .Doolittle {Pub. Flower 
Obsy. l)...] 





p 


781. L 


alande 


1337 










R.A. 0" 


44'" 2=^ 


\ 










Decl. + 


68= 20' 


\ 






I88I.5I 




31.2 


1.04 


8.1. 


. . 8.6 


3« 


y3 


1886.86 


28.2 


1. 18 






2« 


UL 


1888.44 


26.5 


1.04 


8.3. 


. . 9.2 


3« 


Com 


1891.59 


30.0 


0.88 


8.1. 


.. 8.4 


3« 


^ 



Discovered with the 15 5^ -inch at the Washburn 

Observatory. So far there has been no change. 

[^ (xii).../34.../3 (3ii3).../3 {Pub. L.O. ii)...Updegraff, 
Lamb and Comstock {Pub. Washburn Obsy. v, vi). . .] 



P 496. Lalande 1416 







R.A. 0" 


45 


^ 18= ) 
° 8' \ 












Decl. + 


12 








1878.74 




2.4 


5-12 




7 •- -13 




2 71 


/3 


1885.97 


2-3 


5-04 




. . . 




l/t 


H2 


1891.64 


4.2 


5-31 




7.5.. .12 


5 


271 


^ 



Discovered with the 18 3^ -inch. No sensible 
change. 

[^(x)...^'...^(3ii3)...^(/'«/;. Z. aii)...HS( )...] 



P I. O. Arg. N. 819 











R.A. o'' 


45" 50= 


/ 










Decl. -f 


55° 58' 


\ 










A and B 








1875-34 



81.0 


1.42 


8.1. 


. . 10. 1 


4« 


J 


1876 


76 


79-8 


1-45 


8 . 


. . 10 


171 


02 


1885 


73 


82.1 


1.62 






2 71 


H2 


1888 


66 


82.0 


1.38 


8.0. 


. . 10. 


S" 


T 


1889 


55 


82.6 


1-45 


8.2. 


.. 9-8 


yi 


/3 


1892 


96 


83.8 


1.48 


8.1. 


. 10. 1 


2 71 


J 


1898 


66 


79-2 


. 1-63 


8.4. 


. 10. 


2 71 


^ 






A and C 








1875-34 


i33°3 


3-70 




. . 8.8 


471 


J 


1876.46 


130 


I 


3-85 




. . 9.0 


171 


02 


1885.73 


132 


3 


3-83 






271 


H2 


1888.66 


137 


2 


4.08 




. . 9.0 


5« 


T 


1889.55 


134 


2 


3-82 




. 8.7 


y 


/8 


1892.89 


132 


8 


3.60 




. . 8.6 


271 


T 


1898.58 


137 


6 


3-67 




. . 9.7 


271 


/3 






A and D 








1875-34 




192.9 


8.82 




•- 9-5 


471 


J 


1876 


46 


192.7 


8.87 




.. 9.0 


171 


02 


1885 


73 


192.7 


8-93 






2 71 


H2 


1888 


67 


193-5 


8.76 




- ■ 9-5 


471 


T 


1889 


55 


193-7 


8.97 




.. 8.7 


3" 


/8 


1892 


89 


193-2 


8-83 




. . 9.2 


271 


J 


1898 


58 


194.4 


8.73 






271 


/3 






A and E 








1888.67 


334-1 


16.53 




. . 12.0 


471 


T 


1889.55 


333-1 


15-84 




■ -12.5 


yi 


/8 


1898 


58 


332 


9 


15.86 






2 71 


i8 



Discovered from i8ji to i8gg by S. W, Burnham 



Discovered with the 6-inch. It is a pretty group, 
in the np edge of a large diffused nebula, discov- 
ered by Barnard in i88i (Dreyer 281). The com- 
ponents of this multiple seem to be fixed. 

[/3 (i)...i3 {Mon. Not. xxxm, 351)... /S {Fnl>. A. O. u) . . .J 
(2081)... zJ (i)...OS {Poulkozva Obsiis. x)...HS ( ) 
...Tarrant (2991) .. .Jones {Proc. Haverford Coll. Obsy. 
1892)... Barnard (2588)] 



P 497. B.A.C. 239 







R.A. oh 


45"" 55= 


\ 










Decl. + 


60° 28' 


\ 










R and C 








1877-59 




150.9 


0-9 


9-0 


..II. 5 


\n 


^ 


1891.52 


149-8 


0.76 


9.0 


..II. 5 


2)1 


/8 


1898.73 


151. 6 


0.84 


8.7 


..10.5 


m 


^ 






A and B 








1878.66 



171.6 


121.20 


6.0 




m 


/3 


1888.08 


171. 4 


123.17 






211 


Eng 


I89I.5I 


171. 2 


123.89 


6.0 


.. 8.7 


3« 


/3 


1895.01 


171-7 


124.82 






211 


Eng 


1898.72 


171.6 


125.06 


5-7 


.. 8.2 


2)1 


/8 



This distant double companion was detected 
with the 18^-inch. The bright star has an annual 
proper motion of 0^175 in the direction of 33i"?2 
(Porter), and this corresponds to the the change 
of the distant star with reference to A. The small 
star B is D.M. (60°) 125. 

[;8 (x)...(3'.../3 (3ii3)..-/3 {Pub. L. 0.u)...p (A. &- A.-P. 
xiil, 16). . .Engelhardt {Obsns. Ast. 11, in). . .] 



P 498. Lalande 1459 



R.A. oh 46'" 33^ 
Decl. + 9" g' 



1878.26 156.2 2.53 8.0... 12.0 2>i fi 

1885.97 158.5 2.57 ... I// H5 

1891.96 154.6 2.70 8.0... 12. 6 2u fi 

Discovered with the iS^^-inch. No change is 
shown by the measures. 

1/3 (x).../3-...,3 (3113)- --^ (Pub. /..O.n)...HX ( )...] 



p 734. Cefy 132 







R.A. 0'' 


46 


-47s ^ 












Decl. — 


24 


° 40' ^ 








1879.68 


348.9 


// 
10.74 




6.0.. 


I I.C 


3" 


fi 


1879.69 


345-6 


10.75 




5-5- ■ 


9-5 


i/i 


Cin 


1882.74 


344-9 


1 1. 19 




5-7- • 


9-5 


3« 


W 


1888.84 


346.9 


10.83 




7 • ■ 


10 


2n 


n 


1897.63 


345-7 


11.24 








in 


.See 


1898.71 


347-1 


10.68 




6.0. . 


11-5 


Ml 


/? 



Discovered with the 6-inch at Mt. Hamilton. 
There has been no change in the position of the 
small star. The principal star is 5^^ m in Gould 
(= Lalande 1477 = Lacaille 238). 

[/3 (xi).../3=.../3 {2g2g)...p{PHb. L. O. i, 11). . .Cin^ . .Wil- 
son (Cin'°). . .See (3495). . .] 



P 1098. v' Cassiopeiae 



R.A. oh 47"' 53= 
Decl. + 58° 19' 



6 . 


• -13-5 


yi 


a 


6 . 


• • 14 


1)1 


A 




■ -14 


2)1 


(i 



1889.60 75.2 12.79 
1896.80 74.4 12.87 
1898.60 74.0 13. j8 



Discovered with the 36-inch. The principal star 
has a proper motion of o.'io6 in the direction of 
221 !'2 (Auwers). With the position of 1889, and 
this proper motion, the distance of the small star, 
if fixed in space, should be 13. '6 in the position- 
angle of 73° at the date of the last measure in 
1898. 
( ^ (XVI)... /3 (2956)... /3(/'«Z..Z. O. ii)...Aitken (3465)- -■] 



P 500. Lalande 1539 

R.A. oh 48-" 53^ I 
Decl. +30-^ I' S 

1878.36 289.0 1.04 8.1. 

1889.94 290.3 0.50 

1S93.34 112.2 0.7S 8.2. 

1896.72 289. S 0.62 S . 



Discovered with the iS'j-inch. Change is 
doubtful. 
[/3 (x).../3-...Sp (iii)...Lv (.•/./. 407)... Wilson ( )...] 



8.T 


2)1 


P 




6tt 


Sp 


8.3 


2)1 


\\' 


8 


2)1 


Lv 



14 



General Catalogue of Dozcble Stars 





p 


233. 


Arg. S. 505 










R.A. o'> 


49" 9= \ 
18° 6' \ 










Dec!. — 






1876.77 


2 68^6 


1.42 


8.6. . . 9.4 


4« 


J 


1877.80 


87-3 


1.30 


8.0. . . 9.2 


2« 


Cin 


1891.77 


92.0 


1.36 


... 9 


2n 


Col 


1891.96 


90-5 


1. 14 


8.0. . . 9.0 


\>i 


/? 


1895.91 


96-3 


. . . 




3« 


Dob 


1897-75 


90.0 


1.46 




\n 


See 



Discovered with the 6-inch. Evidently without 
change. 

[(3 (v). . .^ {Mou. Not. XXXV, 31). ../3 (3114). . ./3 {Pub. L. O. 
\\)...A (I). . .Cm-t. . .Collins {Proc. Haverford Coll. Obsy. 
1891). . .Doberck (3378). . .See (3495)- ■ •] 





p 


1028. 7 

R.A. o'- 


Cassiopeiae 

40"' 28=^ ) 
60° 4' \ 










Decl. + 










A and B 






1888.69 


2 55-9 


2.18 


... II. 


6n 


iS 


1889.53 


255-4 


2-15 


.. .11.6 


\" 


/3 


1894.78 


353-7 


2.22 




V 


Bar 


1896.86 


248.6 


1-97 




y 


A 


1897.83 


255-2 


2.10 




2H 


Hu 


1898.57 


256-5 


2.02 


...11.5 


211 


^ 



A and C (=i3 499) 



1879.68 


348.2 


52-15 


1888.68 


348.6 


52-44 


1896.89 


348-4 


52-71 


1898.50 


347-7 


52.69 



.13.0 


4;/ 


(i 


-13-5 


2n 


a 




2n 


A 




V> 


i8 



The distant star was detected with the 18^-inch, 
and in measuring it with the 36-inch the close star 
was discovered. It should have been seen with the 
smaller telescope, as it was measurable with the 
12-inch at L. O. 

AuwERS gives for the proper motion of the 
large star ofo27 in the direction of i34?3. If 
the companion does not share in this motion, the 
angle at the date of the last measures in 1898 
should be 261? 5 and the distance 2^33. As the 
measures appear to show no relative change, it is 
very probable that B is moving with the principal 
star, and that they constitute a physical svstem. 
The distance of C is increasing as it should from 



the movement of A. The computed place of C 
from the measures of 1879 ^i^d the proper motion 
of A is, 347?9 : 52^65 for 1898.5, which is prac- 
tically identical with the measures of that date. 

[/3 (x, xiv). . ./3^ . .i33. . ./3 (2875,2956). . ./3 (Pub. L. O. 11). . . 
Hussey {A.J. 427). . . Aitken (3465). .. Barnard {A. J. 
447)---] 



P 1099. B.A.C. 255 







R.A. 0" 49 


"34' 












Decl. + 59 


°43'i 








1889.57 



270.2 


// 
0.15 


6.1. . 


. 6.8 


yi 


/8 


1891.64 


282.2 


0.12 


6.2. . 


. 6.2 


yi 


y8 


1894.72 


289.5 


0.09 






yi 


Bar 


1898.57 


307-3 


0.26 






2n 


/8 


1899.46 


312.6 


0.20 


6.0. . 


- 6.5 


\n 


A 



This close and difficult pair was discovered with 
the 36-inch. It is a naked-eye star, 21' j of y Cas- 
siopeiae. Rapid angular motion is clearly shown by 
the measures, and it may belong to the class of 
short period binaries. It is important that careful 
measures with large apertures should be made each 
year. 

[|3 (xvi). ..^ (2956,3114). . .(3 {Pub. L. O. II). . .Barnard {A.J. 
447)... Aitken ( )...] 



P 302. P.O. 245 







R.A. 0'' 


51 


mg.s 


[ 










Decl. + 


20 


° 45' 






1876.27 




92.5 


0-75 




6.7 


.. 8.1 


4« 


J 


1876.76 


84.1 


0.90 




7.5 


.. 8.5 


111 


02 


1883.53 


94-3 


0.82 




6.8 


.- 7-9 


S" 


En 


1883.85 


97-5 


0.7 








in 


Per'y 


1887.53 


97.0 


0.61 








6« 


Sp 


1888.32 


99.9 


0.89 








yi 


H2 


1889.02 


97.1 


0.66 








8;/ 


Sp 


1898.01 


lOI.O 


0.58 








211 


Br 



Discovered with the 6 -inch. A naked-eye star 
in Pisces. The angle appears to be increasing. 

[/3(vi)...^ (2062)... J (i)...Englemann (2742)... OS {Poul- 
kowa Obsns. x). . .J. J. M. Perry {Eng. Mechanic xxxix, 
II)... Sp (III)... Brown ( )...HS( )...] 



Discovered from iSji to i8gg by S. W. Burnham 



P 867. Lalande 1719 



R.A. 0'' 53'" 56= 
Decl. + n" 17' 



1880.21 174.8 0.96 8.1... 8.6 3« /3 
1889.00 172.2 0.98 8.0... 9.0 \n Lv 
1889.93 174.6 I. GO ... 3// Sp 

Discovered with tlie i8^-incli. 
[(3 (.xiii).../33...Lv'...Sp (III)...] 



P 234. O. Arg. S. 563 

R.A. 0'' 54" 36^ ^ 
Decl. — 17° 43' \ 



A and B 



1875.84 
1876.16 
1877-78 
1884.92 
1887.97 
1892.89 
1893.82 
1898.70 
1898.88 



1876.30 
1892.89 
1893.82 
1898.70 
1898.89 



330-8 
333-5 
330-5 
332-5 
332-2 
332.6 
332.0 
331-8 
331-4 



132.4 
132. 1 

131-9 
132.0 
131 6 



65 
37 
76 
72 
70 
41 
60 

58 
54 



A and C 



60.28 
60.66 

59-9° 
62.34 
60.41 



8.6 
8.7 
8.0 
8.6 
8.0 



5 


3'' 


J 


3 


4-in 


Cin 


2 


3-2 « 


Cin 


5 


in 


W 


5 


211 


Lv 


6 


2)1 


Gl 


2 


in 


W 


3 


3« 


Cg 


2 


\n 


/8 



211 

2/1 
Ifl 

y 

2)1 



J 

Gl 
W 

Cg 
/3 



Discovered witti the 6-inch. C is O.Arg.S. 565. 
Apparently fixed. 

[i3 (v). . .(3 (Mon. Not xxxv, 31).../! (i)...Cin3. ..Ciir'. . . 
Lv'. . .Wilson (Cin'°). . . Glasenapp (ll). .. Wilson ( ) 
...Cogshall( )...] 



P 1 161. Lalande 1766 



R.A. 0'' 55"' 53= 
Decl. + 51° 9' 



1890.71 324.2 0.48 6.9... 7.7 yi f3 

1897-90 331-0 o.S± ... 2n A 

1898.74 330.5 0.57 7-5- •■ 8.5 2)1 (3 

Discovered with the 36-inch. Some change is 
probable. 

1/3 (xvil).../3 (3047).,. /3 (/'«/.. /.. O. il)...Aitken (^/. ./. 
429)... 



P 396. B.A.C. 282 







R.A. Qh 


56 


"> M'^ 


; 










Decl. + 


60 


° 26' 








1877.10 


66% 


1.24 




6.1. 


. 9.2 


4« 


J 


1879.40 


65.8 


1. 21 




6.2. 


. 10. 


4" 


ft 


1881.63 


67-5 


I-15 




6.7. 


. 10.8 


3« 


[i 


1885.69 


66.0 


1. 21 








2)1 


H2 


1888.72 


66.8 


1-25 




6.3. 


• 9-3 


4« 


ft 


1889.53 


66.4 


1.28 




6.0. 


. 10. 


3« 


ft 



Discovered with the 6-inch. A naked-eye star 
near y Cassiopeiae. The components have a strik- 
ing difference in color ; J gives, white : light blue. 
Thus far there is no change in angle or distance. 

[/3 (vii)...(3'.. ./33.. .^4,.,^ (2103,2875, 2956)... ^(y/z^.Z. O. 
n).../l(i)...HS( )...] 





p 


735- 


Lacaille 


296 










R.A. oh 


58- 


"53= 


' 










Decl. — 


34 


° 10' 








1877.79 




219. 1 


8.45 




6.5. 


. 10. 


\>i 


Cin 


1879.68 


218.3 


8.64 




7-0. 


.11.5 


in 


ft 


1891.83 


220.3 


8.68 




6.0. 


.10.5 


3« 


ft 


1896.76 


219.4 


8.37 








211 


See 


1896.87 


220.0 


8.43 








in 


Hu 



Discovered with the 6-inch at Mt. Hamilton. 
There is no evidence of change. This star had 
been previously seen by the Cincinnati observers. 
The magnitude of A is 6.5 in Gould. 

[iS (XI)...i3^../3 (3ii4).../3 {Fi//>. L. O. i, 11). . .Cin->. . . Hus- 
sey (^./. 397)... See (3495)- ■•] 



P 1228. D.^L (i2'~) 133 







R.A. 0" 


59 


^30^ ] 






Deci. -f 


12 


' ^x' S 


1891.59 


268^0 


1/ 

0.82 




8.3--- 


1895.88 


268.1 


0.51 






1896.81 


265.1 


0.60 






1897.86 


266.8 


0.69 






IS97.98 


265.2 


0.86 






1898.87 


275-7 


0.S9 






1898.94 


268.5 


o.So 


T S 


8.5. . . 

1 ' ; n ,- 



8.9 



3" 


ft 


\n 


L 


\)i 


A 


\n 


L 


\fi 


Bow 


3" 


How 


\n 


A 



9.5 



not given in the catalogues of that time. The 



i6 



General Catalogue of Double Stars 



measures are all too recent to show change, unless 
the motion is rapid. * 

[/3(xviii). . ./3 (3ii3)...i3 {Pub. L. O. u) . . .Lewis and Bow- 
yer (Mon. Not. LVI, 359; nx, 400) {Greenwich Obsns. 



loyj;. 


P 


501. Lalande 
R.A. i'> 0™ 40= 


1958 

} 


•J 








Decl. — 5° 17' 






1878.49 




29.9 


2.55 8.0. 


. .11.7 


211 


/3 


1891.94 


31-3 


2.73 8.1. 


..II. 5 


3« 


/S 


1898.64 


28.4 


2.80 7.2 


..II. 8 


VI 


Cg 



Discovered with the 18 J^ -inch. No sensible 
change. 
[^ (x) . . . j3' . . . ^ (3114) . . .fi{Pub. L.O.W)... Cogshall ( ) . . . 

P 397. Lalande 1943 



R.A. 
Decl, 



0" 54' 
. -|- 46° 12' 

A and B 



1876.64 
1891.70 
1893.56 
1898.63 



142. 1 

141-9 
142.9 
142.6 



8.75 
8.70 

8.54 
8.86 



7.6. 
7-3- 
7-3- 
7.2. 



9.8 

9.6 

9.8 

10.2 



2;/ 
i" 
V 
211 



J 

w 



A and C 



1891.70 63.8 16.63 
1898.63 65.4 16.63 



...13 in /3 
. . . 12.5 2n /3 



The nearest companion was found with the 6- 
inch, and the other added with the 36-inch. These 
stars appear to be relatively fixed. The double 
star H 2015 has the same R.A., but 1° n of this 
pair. There is no such pair in H's place, and there 
is certainly an error of 1° in his declination, mak- 
ing it identical with this pair. The description in 
H is: i46?2 : io"± : 8.9. . .12. 

[/S (vii)...;3 (3ii4)...i3 {P„h. L. O. u)...A (i), . .Wilson 
( )■■■] 

P 502. W O. 1077 

R.A. i'' 2'" 13= 
Decl. + 15° 9' 

o // 

1878.29 306.6 3.49 8. 1... 1 1. 5 211 /3 

1892.00 305.6 3.24 8. 2... II. 2 2fl y8 

Discovered with the i8)^-inch. Unchanged, 
[^(x)...^'... (3ii4)..-/3(/^«^.Z. 0. II)...] 



P 868. O. Arg. N. 1 1 56 



R.A. 



2"' 545 



1880.68 233.8 
1891.70 233.7 
1898.79 233.4 



Decl. + 51° 24' ( 

9.37 8.O.. . 9.8 4fi /3 

9.25 7.9. . . 9.3 2H ^ 

9.15 8.0. . . 10.3 m 13 



Discovered with the 185^-inch. Unchanged. 
[/3(xiii)...;83...^(3ii3).../3(/'«^. Z. O. II)...] 



P 303. Piscium 201 



R.A. 
Decl. 



I" 3'" 10= 

+ 23° 9' 



1876.35 
1876.76 
1877.08 
1883.21 
1883.59 
1885.97 

1887.51 
1887.92 
1889.00 
1891.96 
1892.85 
1895.91 
1896.86 
1897.00 
1897.88 
1897.89 
1898.89 
1898.92 



283.7 
281.0 
104.6 
286.3 
283.0 
282.0 
285.0 
103.0 
285.4 
284.8 
284.5 
285-7 
284.3 
287.0 
280.1 
286.2 
281.3 
280.9 



0-59 
0.69 
0.56 
0.71 
0.8 

0-55 
0.61 
0.57 
0.71 

0-93 
0.62 
0.70 

0-59 
0.64 
0.49 
0.50 
0.64 



7-1 

7-5 
7 

7-2 



7-2 

7-0 
7.2 



7-3 
7-5 
9 
7-8 



7-2 



6« J 

ui 02 

2n HI 

5« En 

\n Per'y 

m H2 

6« Sp 

4« HI 

8;/ Sp 

211 ^ 



7.1 211 Jnes 



7.2 3« 



Lew 



\7i Dy 

\n Sp 

yi Bow 

211 Lew 

\n L 

3« Bow 



Discovered with the 6-inch. Naked-eye star, 
Heis 6.7 m. The measures show no change in 
either angle or distance. Lalande 2046. 

[/3 (vi).../3 (2062,3 1 14)... |3 [Pub. L. O. II)... -d (I)... Mall 
(l, 11) . . . Engelmann (2678) . . . Perry (Eng. Mechanic 
XXXIX, 11)... OS {Poul/iowa Obsjts. x)...HS ( )... 
Jones (Proc. Haverford Coll. Obsy. 1892). . .Lewis [Mon. 
Not. LVI, 359) [Greenwich Obsns. 1895)... Sp (ill)... 
Lewis, etc. [Mon. Not. LIX, 400). . .] 



Discovered from iSyi to i8gg by S. W. Burnham 



17 



P 235. Lalande 2042 



R.A. ih 3™ 29 
Decl. + 50° 22 

A and a 



•| 



1875-65 


74.0 


0.48 


7.0. 


• 7-4 


6« 


J 


1878.65 


76.9 


0.84 


7.8. 


. 7-8 


\n 


/? 


1883.75 


78.5 


0-S9 


7.2. 


. 7-6 


6n 


En 


1888.56 


83-7 


0.63 






5« 


Sp 


1889.53 


86.1 


0.79 


7.2. 


■ 7-3 


3« 


/3 


1891.68 


86.0 


0.71 


7-3- 


• 7-4 


3« 


/3 


1892.88 


84.0 


0.87 


7.1.. 


• 7-4 


3« 


J 


1898.72 


91. 1 


0.83 






3« 


Hu 


1897.84 


87.6 


0.86 






3;/ 


A 



B and b 



1878.65 


76.6 


8.50 


10.2 . 


. 12.0 


m 


/8 


1898.54 


78.7 


8.64 






2)1 


^ 



C and 1: (= OS 24) 



1845-73 


46.9 


7-i± 




2« 


Ma 


1847.91 


45-0 


7.80 


. . 11.2 


2« 


02 


1868.05 


48.9 


7.99 10.2 


..II. 5 


3« 


J 


1878.65 


47.2 


8.13 9.0 


. . I I.O 


\)l 


/3 


1892.99 


47-9 


6.34 9-3 


. . . 10.4 


\)l 


J 


1898.54 


47-6 


8.03 
A and B 




in 


a 


1868.75 


287% 


43-79 7-0 


..10.5 


2H 


J 


1884.08 


286.9 


43.20 7.6 


... 9-8 


5« 


Fr'z 


1898.54 


286.1 


43-43 




2« 


/? 



A and C (= OS (app.) 12) 



1847.91 


66.3 


60.65 


7.0. . 


8.9 


2« 


02 


1868.05 


66.9 


60.86 


7.0.. 




3« 


J 


1883.48 


66.7 


60.06 


7-3- • 


9-4 


6n 


Fr'z 


1886.06 


67.1 


60.45 


7.0.. 


8.8 


yi 


Eng 


1898.54 


67.2 


60.01 






2« 


/8 



The close pair, and the minute companion to B, 
were discovered with the 6-inch. There appears 
to be a slow advance in the angle of ha, with little 
or no change in the distant stars. 

[^ (v)...^ [Mon. Not. xx.xv, 3i)...j3'...i3 (2956,31 14). . .|3 
[Pub. L. O. u)...A (I, pp.133, 3iS).-.-^ (2086)... OS 
{Poulkowa Olisus. lx)...Madler (Dorpat Ohsns. xill)... 
Engelmann (2678) .. .Franz (2649). . .Engelhardt (2785) 
(Obsns. Ast. 11). . .Tones {Proc. IJaverford Coll. Obsy. 1892) 
. . . Aitken {A.J. 429). . .Sp (in). . .Hussey ( ). . .] 



P 2. W= I. 16 

R.A. ii> 3*" 46= \ 
Decl. + 29° 14' \ 

1875-71 155-7 2.07 9.3. ..10.5 3« A 

1891.97 155.9 2.25 8.7... 9.0 \n /3 

Discovered with the 6-inch. 

[(3 (l).../3 {Mon. Not. XXXIII, 3Sl).../3 (3114)...^ {Pub. L. 
O. U)...A (i)...l 



P II62. D.M. (35') 215 



R.A. !•> 3™ 52^ 
Decl. 1+ 35° 18' 



1890.68 140.3 0.34 9.2... 9.4 yi (3 

A difficult pair ; discovered with the 36-inch. It 
is about 25' «/ /3 Audromedae. 

[^ (XVII). . ./3 (3047). . .^ {Pt'b. L. 0. H). . .] 



P 398. O. Arg. N. 1200 
R.A. i'' 4" 52' ]_ 



1877.02 
1883.70 
1891.51 
1893.06 



50-5 
56.6 

50-3 
52-5 



Decl. -f 47° 10' S 

1.85 9.0. . . 9.1 3« Jj 
1.90 8.5. . . 8.8 6« En 



1.84 8.9.. 
1.73 9.2.. 



9.0 2« yS 
9.2 \n J 



Discovered with the 6-inch. Without change. 

[/S (vn) . . .13 (2103,3114). . ./3 {Pub. L. 0.n)...A (i). . .Engel- 
mann (2678). . .Jones (A. J. 312). . .] 



P 236. D.M. (46O 285 

R.A. i^ 5"' 6* I 
Decl. -f 46" 21' \ 



1875.81 


II4-3 


5.19 


8.3.. 


. 8.8 


4" 


J 


1SS2.10 


1 14.0 


5-91 






1// 


Pt 


1885.12 


114.8 


565 


8.5.. 


. 8.9 


7« 


En 


1893.01 


113-7 


5-36 


8.6. . 


. S.S 


3« 


\\' 



Discovered with the 6-inch. .Vpparently fixed. 

1/3 (v), . ./3(J/<j;/. AW. XXXV, 31) I (1).. .Engelmann (2742) 

. . . Pritchetl {Pub. Morrison Obsy. i) . . . Wilson ( ) . . . 



i8 



General Catalogue of Double Stars 





p 


258. Lalande 21 10 










R.A. ih 


5" 33' / 
61° 4' \ 










Decl. + 






1875.20 




260.4 


0.79 


6.2 . . . 9.0 


4;; 


J 


1881.63 


264.4 


0.89 


7.2 . . . 10.2 


3« 


/8 


1885.69 


262.1 


0.89 




2)1 


H2 


1888.97 


262.3 


0.78 




3« 


Sp 


1889.57 


268.2 


0.99 


6.3... 9.7 


V 


/3 


1897.84 


256.7 


1. 01 




3« 


A 



Discovered with the 6-inch. Change is uncer- 
tain. AiTKEN speaks of a 12m star, 204° : 41". 



(v). . ./3 (^Mon. Not. xxxv, 31). 
Z. 0.\\)...A (2086)... J (I). 
Aitken [A. J. 429). . .] 



.^^../3(2957)... ^{Pnh 
.HS ( )...Sp (m)... 



P IIOO. Lalande 2155 



R.A. ih 7"" 9^ 
Decl. + 60° 18' 



1889.54 43.6 0.48 7-4--- 7-4 3'' /8 

1897-94 33-7 0-75 ■•■ 3'^ A 

1898.73 35.7 0.49 7-5- •• 7-7 I'' /3 

Discovered with the 36-inch. The measures 
indicate some motion. 

[^ (XVI)... /3 (2956)... (3 {Pub. L. O. II)... Aitken {A.J. 
429)-.-] 



P 1029. % Pischnn 







R.A. i'> 7'" 275 






Decl. + 6° 56' 






B and C 


1888.71 


248^7 


0-93 


1888.99 


248.0 


o.7dz 


1890.92 


248.8 


0.85 


1895.90 


240.1 




1896.74 


241-5 


0.97 


1898.73 


241.7 


0.88 



1 1 


5« 


/? 




3" 


Sp 


13-5 


I" 


yS 




It! 


Dy 




3« 


A 




m 


/3 



A and B (= S 100) 



1832.83 


63-7 


23.46 


4.2. 


• 5-3 5" 


2 


1866.04 


63.8 


23-77 


4.2. 


- 5-8 y 


J 


1888.71 


63-5 


23.72 




S" 


/3 


1890.92 


63-5 


23.70 




211 


^ 


1898.76 


63-5 


23.67 




4;/ 


/8 



The close pair was discovered with the 36-inch. 
AuwERS gives the proper motion of A as of 123 in 
the direction of ii4?6, and this is obviously the 
movement of B, as these stars have remained rela- 
tively fixed since the first measures were made. 
The measures of C cover a sufficient time to show 
that the small star belongs to the system. The 
position of this star for 1898.7 with reference to B, 
if fixed, should be 268?3 : i ^'99 from the proper 
motion of the large star. It is evident from the 
measures that no such change has taken place, and 
that there is probably slow orbital motion. These 
three stars undoubtedly constitute a vast physical 
system. It would appear from the measures of the 
last seventy years that the proper motion of B is 
identical with that assigned to A from the meridian 
observations. From the position of B given by 2 
in 1832, assuming that star to be fixed in space, its 
relation to A in its position in 1898.8 would be 
44?7 : 19 ['40. 

[;S (xiv). . .;8 (2875, 3048). . .^ {Pub. L. O. II). . .Sp (in). . . 
D3'Son {Mon. Not. LVi, 359) {Greenwich Obsns. 1895).. '. 
Aitken (3395)- -•] 

The measures of the wide pair ( =5 100 =H' 
IV. 8 = Sh 16) are very numerous, and cover, first 
and last, more than a century. The early distances, 
however, are inaccurate and inconsistent, and the 
reliable results commence with the measures of 2. 
A few only of the measures are given above, but 
sufficient to show the relative fixity of these stars. 
All the measures will be found in the following : 

Madler {Dorpat Obsns. ix, x, xill, xv) {Fixstern Sys. l). . . 
Herschel {Mem. R.A. S. xxxvill). . .Dawes {Mem. R. A. S. 
VIII, xix) {Ast. Obsns. at Bishop's Oi^j-jc.). . .Madler (324)... 
Kaiser (409). . . Peters (1042) . . . Auwers (1393). . .Bessel (Beob. 
38 Doppelsternen) . . .Kaiser {Annalen der Sternwa7-te ill, Lei- 
den, 1872). .. Fletcher {Mem. R. A. S. XXIl). . . Wichman 
{Ergdnzting-Heft, Astron. Nach. 1849). . .Secchi {Catalogo di 
1321 Stelle Doppie) . . .Luther {Kbnigsberg Obsns. I, II, ill). . . 
Obs7is. at Barclay^ s Obsy. l). . .Engelmann {Mess, von Neiinzig 
Doppelsternen, 1865) . . . Gledhill {Mem. R. A. S. XLIl) . . . 
Wilson and Seabroke {Mem. R. A. S. XLII, XLVlll). . .Aiinals 
Harvard Obsy. XIII...OS {Poulkowa Obsns. lx)...Duner 
{Mesiires Microm. Lund., 1876). . .Perrotin {Annals Obsy. de 
Nice 11) . . . Engelhardt {Obsns. Astron. 11) . . . Giacomelli {Accad. 
dei Lincei, 1890, vi). . . Jedrzejewicz (2324)... Sp (ll)...J 
(ill8).../l (l, 11) ... Franz (2590) . . . Glasenapp (11, in)... 
Cohn (3240). . . Hagen (3258). . .Chofardet (3450) . . .Coleman 
{Mem. R. A. S. Llll) . . . Sold (3563) . . . ] 



Discovered from 18'] i to i8gg by S, W. Burnham 



19 



P 3. D.M. (55°)277 







R.A. i" 


9™ 39' 












Decl. + 


55 


°52' 








1875-48 




28.0 


4-37 




7.8.. 


. 10.2 


4« 


A 


1888.68 


29.4 


4.18 




7-7- 


.10.3 


2« 


T 


1893.01 


28.5 


4.58 




7-7- 


.10.3 


yi 


\V 



Discovered with the 6-inch. Without motion. 

[j3 (i). . ./3 (yI/o«. Not. xxxill, 351). . . J (i). . .Tarrant (2991) 
Wilson ( )...] 

P 503- Lalande 2307 



R.A. i'' lo™ 54* 
Decl. + 9° 58' 



1878.38 136.7 5.44 8.0... 12.0 yi /3 

1885.93 136.8 5-83 ■■• i« H2 

1898.65 134.6 5.77 8.0... II. 5 211 /3 

Discovered with the i8j/^-inch. Apparently 
fixed. 
[|3{x).../3'...HS( )...] 



P 504. Lalande 2318 



R.A. i'' ii"> 9^ 
Decl. -|- 1° 12' 



1878.35 277.3 1-40 7.7...II-7 3" (^ 

1897.93 279.3 1-87 ■■• 3« Br 

Discovered with the 185^ -inch. 
[/3(x). ../3'. ../33... Brown ( )...] 



P 782. Lalande 2357 



R.A. i^ 13m 20= 
Decl. +55° 35' 



1881 
1885 
1886 
1888 
1893 



57 
70 
86 

41 
20 



79.2 

77 



76 
76 
80 



2-95 
2.96 
2.82 
3.16 
2.96 



8.0 



8.0 
8.1 



9.6 


5" 


/3 




2/1 


HS 




2/! 


UL 


9.4 


3" 


Com 


9.6 


4fi 


W 



Discovered with the 15^ -inch at the Washburn 
Observatory. Apparently without change. 

[/3 (xii). . .;84. . .Updegraff, Lamb and Comstock {Pul>. Wask- 
btti-n Obsy. v, vi) . . . Wilson ( ) ... IIS ( ) . . . ] 



P 1229. Cord. G.C. 1244 

R.A. i'' 13'" 46^^ } 
Decl. — 35'= 7' ^ 



1891.84 


292.4 




1.04 


8.1. . 


8.4 


yi 


/? 


1893.91 


292.9 




1.02 


8.5.. 


8.5 


271 


Sel 


1896.82 


291.3 




0.96 






211 


See 


1896.84 


291.6 




I.I 2 






\n 


Cg 


1897.96 


292.6 




1. 14 






3« 


A 


Discovered wi 


th 


the 12- 


inch. 


So far 


the 


re has 


been no 


change. 















[/3(xviii).../3(3ii3)...^ {Pub. L. O. 11)... Sellers (3240). 
See and Cogshall (3495) . . . Aitken {A. J. 429) . . . ] 





(3 


4. Pisci 


Hin ; 


^55 










R.A. i'' 14 


m ^gS 












Decl. + 10 


' 55' 






1872.81 




loozb 


o-5± 


8 


.. 8.5 




^ 


1876.76 




Single 


7 




\)i 


02 


1877.17 


81.0 


0-37 


7.0 


■■ 7-5 


\n 


^ 


1879.66 


1 19. 1 


o-5± 


7-0 


. . 7.0 


\n 


Cin 


1880.84 


75-9 


0.58 


7-5 


.. 8.5 


3« 


/? 


1886.73 


73-6 


0.48 


6.6 


.. 8.3 


3« 


LM 


1888.84 


59-0 


0-43 


7-1 


.. 7-1 


yi 


Lv 


1889.93 


69.1 


o.4±: 






S'l 


Sp 


1890.88 


69.2 


0.40 


7.8 


.. 8.8 


4/; 


^ 


1898.73 


67.4 


0.36 


7.0 


• • 7-5 


2/1 


^ 



AB and C 

1898.76 248.9 22.28 ...13.5 i;/ p 

Discovered with the 6-inch. Slow retrograde 
motion is probable, with no sensible change in 
distance. In 1875 J could only see a] doubtful 
elongation in 68°. This star is Lalande 2435. 
The faint star first noted with the 36-inch. 

[j3 (i). . .^ (A/on. Not. XXXIII, 351). . .|3'. . ./33. . ./3 (3048). . .& 
{Pub. L. O. II). . .Cin«. . .OS {Poulkowa Obsns. x). . .LM 
. . .Lv'. . . Lv {Sid. Mess. VIII, 77). . . ] 

P iioi. v}; Cassiopciae 







K.A. l" 17'" 27^ 












Decl. + 67' 30' 


1 










A and B 








1889.52 



41.2 


3-19 4-5 ■ 


•13-5 


4" 


^ 


1891.52 


44-9 


2-93 


. 12.5 


4// 


H 


1898. 68 


41. 8 


2-93 


.13.0 


3" 


fi 



20 



General Catalogue of Double Stars 



A and C (=2117 = H' V. 83) 



1783.62 


100.2 


33-42 


1831.04 


I0I.8 


32.22 


1866.38 


105. 1 


29.56 


1881.66 


106.8 


28.67 


1889.52 


107.4 


28.01 


1898.68 


108.8 


27.44 



4-4 



8.9 



\n 


H' 


S" 


2 


4« 


A 


4/2 


/8 


4" 


^ 


in 


/8 



C and D (= 2 117) 



1831.04 


253-3 


3.01 


8.9.. 


9-5 


4« 


2 


1867.28 


254.8 


2.79 


9.7.. 


10.6 


4« 


J 


1881.66 


256.0 


308 


9.9. . 


10.2 


^n 


^ 


1889.52 


254-7 


2.86 


9.6.. 


9.8 


4« 


/? 


1898.65 


255-4 


2.90 






3« 


/8 



The close companion to the principal star of 
this well-known triple was discovered with the 36- 
inch. AuwERS gives the proper motion of the 
large star as of 06 7 in the direction of 7o?8, and 
this corresponds very nearly to the change in C, 
as shown by the measures. The distant stars, C 
and D, seem to be relatively fixed. A and B are 
moving together, and make a physical system. 

[i3 (xvi). . ./3 (2956,3114). . ./3 {Pub. L. O. 11). . ./S''. . ./3 {Asi. 
and Astro-Physics xin, 16) ... ] 

A and C raaice the double H' V. 83 (= Sh 18). 
D was discovered by 2, the three stars making 
2 117. These evidently form a perspective group. 
Only a few of the measures of the old components 
are given above. These and other observations can 
be found as follows : 

Madler {FixsfernSysieme l, 43, 82) {Dorpat Obsns. XI, 
XIII, XV). . .Herschel {Mem. A". A. S. iv). . .Greenwich Obsns., 
1840. . .Radcliffe Obsns. xxil. . .Dawes {Mem. R. A. S. xxxv) 
{Obsns. at Bishops s Oi^jj/.). . .Secchi {Catalogo di 1321 Stelle 
Z>o/>//>). .. Mitchell (Cin=). .. Ferrari {Misure Microm. Coll. 
Romano, 1872-4). . .Wilson and Seabroke {Mem. R. A. S. XLll. 
XLVl). . .Ball {Dunsink Obs7is. v). . .Doberck (2196) {Travis. R. 
I. Acad. XXIX, Part 13). . .A (1572). . .A (11). . .Tarrant (2898) 
. . .Flammarion {&toiles Doubles et Multiples') . . . Hall (11) . . . 
Engelmann (2663). . .Coleman {Mem. R. A. S. Llli). . .] 



p 505, e Ceti 



R.A 
Decl 



. i'' 18™ i« ) 

1. — 8' 48' \ 



1877.70 60.5 
1891.94 59.7 
1898.69 59.5 



58.8 

60.12 

60.64 



..14 111 /8 

■ -13-7 3« ^ 
..13.7 in /3 



A minute companion noted with the 18% -inch. 
The proper motion of the principal star is given 
by AuwERS as 0^233 in the direction of 2o6?o. 
With this proper motion and the position of the 
small star from the measures of 1898, its place at 
the date of the observation in 1877 should have 
been 62° : 56f6. That was only a single measure; 
and the companion noted as "excessively faint." 
The small star is certainly fixed in space. 

[p {x)...p'...p {3114)... p {Pub. L. a II)...] 



P 1163. Celt 199 



R.A. i" i8"> 18=^ 
Decl. — 7° 32' 



1890.68 192.3 0.19 



6.0. 



6.2 3« /3 



Discovered with the 36-inch. In Gould 5. 
W I. 271. 

[13 (XVII). . .p (3047). . .^ (^«^- ^. O.ii)...] 



P 1 102. O. Arg. N. I 5 10 

R.A. I'l 19™ 39S I 
Decl. + 59° 40' \ 



1889.58 336.3 
1898.61 336.1 



B and C 

0.84 10. 3... 10. 3 3« ^ 
0.85 9.5. .. 9.5 m ji 







A and BC 






1889.58 


265.4 


60.29 8.5. . . 


3« 


/8 


1898.54 


265.0 


60.67 8.0. . . 


2« 


yS 



Discovered with the 36-inch. The measures 
show no change. The principal star is Radcliffe 
430. It is i" 4i'/S Cassiopciae, and 2' 58" n. 

[/3 (XVI). . ./3 (2956). . ./3 {Pub. L. an)...] 



P 999. CO Andromedae 







R.A. i" 


20™ 29' 












Decl. + 


44 


" 47' 










A and B 








1881.84 




91.9 


// 
2.29 






. . 12 


4« 


y8 


1888.70 


95-4 


2.64 






. .11.8 


yi 


)8 


1892.01 


100.2 


2.28 




5-3- 


..II. 5" 


yi 


/8 


1898.38 


96.7 


2.71 








yi 


/? 



Discovered from i8']i to i8gg by S. W. Burnham 



21 



A and C 



1881.84 no. 3 134.26 

1888.75 "0-3 132-49 

1891.97 no. 3 130.93 

1897.82 no. 4 128.84 



271 /? 

3« j8 

\n (i 

2n ^ 



C and D (= /3 82) 



1881.84 


140. 1 


5-04 


10.7. 


.10.7 


3« 


/8 


1888.75 


137-9 


4.96 


10.2 . 


. 10.2 


3« 


/3 


1892.03 


139.0 


4-53 


10.5. 


.10.5 


2tt 


/3 


1897.82 


138.3 


5-07 






2 71 


/^ 


1898.87 


136.8 


5-32 


10.5. 


- 10.5 


171 


L 



The distant double companion was noted with 
the 6-inch in 1872, and the close companion to the 
bright star with the 12-inch at Mt. Hamilton in 
1881. The principal star has a considerable proper 
motion : 



Bonn - 
Bossert 



0.347 m 107. 1 
0.355 in 106.3 



The measures of 1881 and 1897 give an annual 
movement of 0^339 in the direction of iio?3. It 
is obvious from the observations of AB that the 
small star is moving ia space with the other, and 
that they form a physical system, with probably slow 
direct angular motion. The distant stars, CD, are 
apparently unchanged relatively. 

[/3 (n, xni). . ./3 {Mon.Not. xxxin, 437). . ./33. . ./3 (2875,3114) 
. . ./3 {A. &= A.-P. XIII, 15). . .(3 {Pub. L. O. 11). . .Lewis 
{Mon. Not. Lix, 400) . . . ] 





p 


1 1 64. 95 Pisciiim 










K.A, i" 21'" 26^ \ 












Decl. + 4° 44' i 








1890.82 


i68°4 


0.39 6.7.. 


7.0 


yt 


P 


1892.97 


167.4 


o-33± 




\71 


Sp 


1895.49 


162.4 


0.43 




2 71 


L 


1896.53 


171. 


0.321*1 




2 71 


Sp 


1898.73 


163.0 


0.36 6.5.. 


7.0 


III 


i8 


1898.94 


160.2 


0.40 7.0 . . 


7-5 


171 


A 



Discovered with the 36inch. In B.A.C, 7 m ; 
in D.M., 8.0 ; and Boss, 7.3. The principal star 
has some proper motion : 



Boss 
Porter 



0.162 in 193.2 
0.155 '" 202.7 



These stars certainly make a binary system, as 
they are evidently moving in space together. So 
far there is but little relative change. Assuming as 
correct the relation shown in the first set of meas- 
ures, the distance should be 0^94 and the angle 
36° in 1898 if the proper motion belonged to only 
one star. 

[/3 (xvii). . .(3 (3047). . .^ (Pub. L. O. 11). . .Lewis [Mott. Not. 
LVI, 359) [Greenwich Obsns. lifjl) . . .S-p (ill) . . . Aitken 
( )..-] 



P 399. Ceti 2 1 1 



.A. i'' 


21 


" 48= ) 








eel. — 


II 


° 31' \ 








1.56 




6.3-- 


. 10. 


y^ 


J 


1.66 




5-8. 


. 8.4 


ATI 


LM 


1.78 




6.2. 


■ 9-5 


2 71 


^\' 


1.66 




6.4.. 


. 9.2 


y7 


Bd 


1.84 


n / 


6.0. . 


. 9.0 

n Q 1- A 


2 71 

r\ Aire 


/3 



1876.90 302.3 

1886.61 301.6 

1893.81 307.0 

1898.65 301.7 

1898.72 305.4 



Discovered with the 6-inch. A naked-eye star; 
The change, if any, is slight. Heis, 6-7m. L 2675. 

[iS (vii)...i3 (2103)... J (i)...LM... Wilson ( )...Booth- 
royd( )...] 



P 1230. Lacaille 427 



R.A. i^ 24™ 435 
Decl. — 26' 50' 



1891.84 


224-5 


2.62 


7.0. 


.12.5 


471 


/S 


1898.69 


225.9 


2.90 


6.7. 


. 12.2 


3" 


Cg 


1898.80 


221.0 


2.91 


6.2. 


.11.5 


2 7! 


H 



Discovered with the 12-inch. In Gould 6.2 m. 
[(3 (xviii)...|3 (3ii3)...^^/'«*. Z. aii)...Cogshall ( )...] 

P I165. W^ I. 510 



\.A. i'' 25"' 4^ ) 
Decl. + 40° 27' ) 



R 
Decl 



1890.83 62.4 1.82 8. 4... 12. 1 4// P 

1898.71 66.5 1. 86 S.0...10.5 l/l y8 

Discovered with the 12-inch. 
[|3 (xvu). . ./3 (3047)- . -/S (Pub. L. O. II). . .] 



22 



General Catalogue of Dotible Stars 



P 506. T] Pischim 



R.A. 
Deal. 



jh 25m 45 ^ 



1878.73 
1880.12 
1888.73 
1890.78 
1895.88 
1897.88 



12.9 

14.2 

16 

14 

25 

14 



1.02 
1. 16 
1. 10 
0.99 
0.63 
1. 16 



+ 14° 44' 
4 



. I i.o 
. 10.7 
. 10. o 
. 1 1.0 
.10.5 



4« 

3« 
3;/ 
i;? 
\n 



i8 

L 
L 



Discovered with the i8j^-inch. Down to this 
time there is no evidence of relative motion. The 
proper motion of the principal star is very small. 
The value, according to Auwers, is of 0035 in the 
direction of i24?6. The time covered by the 
measures is too short to show whether or not this 
movement belongs to the small star. It will prob- 
ably turn out to be a physical p^ir. 

[/3 (x)..,^'.../33...,3 (2875,3048)... iS {Pub. L. O. 11;... 
Lewis {Alon. Not i.vi, 359; Lix, 400) (Greenwich Obsns. 
1895)...] 



P 507. D.M. (26°) 264 







R.A. i" 


29' 


" 


8=^ 


] 












Decl. + 


26 


"^ 


9' 


\ 








1879.91 


IS5-9 


2.16 




7 


8 


. . 10 


6 


y 


/3 


1891.99 


151. 2 


2.01 




8 


.0 


..II 





y> 


fi 


1895.87 


156.9 


2.16 












in 


L 


1897.81 


153-5 


2.20 












in 


Bow 


1897.97 


158.6 


1-75 












III 


Bry 


1897.97 


158-3 


2.24 












111 


L 


1897.87 


158.9 


1.56 












i/i 


L 



Discovered with the i8)^-inch. The magnitude 
in D.M. is 8.6. No change is shown by the meas- 
ures. 



[/3 (x).../3'.../33.../3 (3ll4).../3 (Fui. L. O. 11). 
[Mon. Not. LVI, 359) {Greenwich Obsns. 1895). 
Bowyer and Bryant {Mon. No/. Lix, 400). . . ] 



P 1000. O. Arg. S. 935 



. Lewis 
.Lewis, 



R.A. 
Decl. 



1881.84 336-4 
189T.84 356.4 
1898.69 8.8 



1.80 
1.44 
1.40 



h 2gni 2"]^ 
- 30" 32' 

7.6. 
8.0. 



I 3.0 



7.0. 



/3 
/3 



Discovered with the 12-inch at Mt. Hamilton in 
1881. The companion is in rapid motion, but 
the character of the movement is uncertain at this 
time. It is probably a binary, as the change does 
not at all correspond to what appears to be the 
proper motion of A, as shown by the measures of 
an 8^ m star, n/, O. Arg. S. 938 : 

A and O. Arg. S. 938 



1850 


I9.I 


146.51 


0. Arg. S. 


1875 


20.9 


142.41 


Cord. G.C. 


1891.85 


20.5 


142.09 


3« (3 


1898.69 


20.7 


141. 61 


2n /3 



The first two positions are derived from meridian 
observations. A comparison of O. Arg. S. with the 
mean place from the micrometrical measures, 
assuming that the change is due to the movement 
of A, gives the proper motion of that star, 0^132 
in the direction of 34o?9. The smaller star may 
have some proper motion of its own. The measures 
of AB in the next few years will show whether or not 
the motion is rectilinear. The 40-inch shows a 
14 m star, 329?5 : 28 To. 

[/3 (xiii). . ./33. . .,3 (3114). . ./3 {Pub. L. O. II). . .] 



P 869. Lalande 2935 







R.A. i'' 


30 


" 3^ 












Decl. + 


3 


°42' 








1880.06 




198.2 


5-13 




8.0.. 


.11.7 


5« 


/3 


1892.00 


197.9 


5-31 




8.1. . 


.11.2 


3« 


/8 


1898.78 


196.6 


5-25 




8 . . 


. 12 


yi 


Bd 



Discovered with the i8i4-inch. Apparently 
fixed. 

[(3 (xiil). . ./33. . .^ (3ii4).../3 {Pub. L. O. II). . .Boothroyd 



P 1 166. Lalande 2980 

R.A. i'' 31'" 45' ) 
Decl. +38° 3' S 



1890.82 345.8 

1898.70 349.7 

1898.71 346.6 



A and B 








2^63 8.4. 


.11-5 


yj 


/3 


2.69 8.5. 


. XI. 2 


2;/ 


/8 


3.02 




2« 


Hu 



Discovered from iS'ji to i8gg by S. W. Burnham 



23 



A and C 

O II 

1898.70 8.9 24.82 ...13.5 Itl ^ 

Discovered with the 12-inch. 
[/3 (xvn). . ./3 (3047). . ./3 {Piti. L. O. 11). . .Hussey ( ). . .] 

P 508. D.M. (26 ) 276 







R.A. i^ 


32'" 27^ \ 












Decl. + 


26 


'20'S 








1877.72 




71. 1 


1.02 




9.0.. . 


9-5 


m 


/? 


1890.47 


63.1 


o.6± 








6jt 


Sp 


1898.82 


64.6 


0.68 








3« 


Hu 



Discovered with the 1 8^4 -inch. 
[(8 (x)...(3'...Sp (ni)... Hussey ( )...] 

P 783' O. Arg. N. 1777 

R.A. l'' 32™ 39" )^ 
Decl. + 73^ 56' i 

o 

1881.71 318.0 0.95 8.5... 8.9 ^n 13 

1888.82 315.5 0.96 9.0... 9.9 3« Com 

Discovered with the 153-j-inch. 

[p (XU). . ./34. . .Comstock {Pu/>. Washlnir7i Obsy. Vl). . .] 

P 5. 103 Pise hull 









R.A. i" 


32" 47- 


) 










Decl. -f 


16° I' \ 






1875-52 


289^4 


1-34 


7.0. 


. 9.0 


4" 


J 


1876.76 


287 


7 


1.40 


7.0. 


• 9-5 


I// 


02 


1880.78 


297 


3 


I-3I 


6.9. 


■ 9-3 


3" 


/8 


1883.85 


292 


5 


1-4 






i/i 


Per 


1887.92 


294 


3 


1.26 


7.0. 


. 9.2 


2/1 


T 


1888.68 


295 


I 


1-31 


7.0. 


. 9.0 


211 


T 


1889.01 


292 


8 


I-I5 


6.9. 


. 9.2 


211 


Lv 


1889.95 


292 





1.07 






l" 


Sp 


1898.00 


290 


7 


1.38 






y 


Br 



Discovered with the 6-inch. No relative change 
is shown by the measures. The principal star has 
a proper motion of o!'o4o in the direction of 
228?3 (AuwERs). If the small star was fixed, its 
position at the date of the last measures in 189S 



would be 33o?4 : i"2o. It is therefore certain 
that the two stars are moving together, and that 
they form a physical system. 

[/3(i). . .^^ . ./) (i). ..Lv'. . .J.J. M. ?^xxy(E7ig.Mech. xxxix, 
II). . .Tarrant (2899,2991). . .OS {Poulkowa Obsns. x). . . 
Sp (ill). . .Brown ( ). . .] 



P I167. \V= I. 716 

R.A. i'' 33™ 16' \ 
Decl. +38° TS 



1890.82 56.2 1.25 9. 3... 10. 7 yi (i 

1898.73 56.2 1.32 ... yi Hu 

Discovered with the 12-inch. The magnitude in 
D.M. is 8.8. 

[/3 (xvii).../3(3047).. ./S {Pub. L. 0. 11)... Hussey ( )...] 



P 1103. 44 Cassiopeiae 







R.A. i" 35" 13S 












Decl. +59= 57' \ 

n 








1889.54 




3-8 


1.73 6.2.. 


.12.5 


y 


li 


1898.61 


4.6 


1-73 


.13.0- 


l>! 


y3 



Discovered with the 36-inch. Krueger gives 
the proper motion of the large star as o".o6o in 
the direction of 103?!. If the companion was 
fixed in space, its position with reference to A at the 
date of the last measures would be 347^3 : i.'Sq. 
The measures show clearly that the two stars are 
moving together. 

[/3 (XVI)... /3 (2956)... i3 (/>«/.. Z. O. II)...] 



P 1 104. Groombridge 370 

R.A. i'" 36"' a* I 
Decl. + 52-^ 17' S 

O il 

1889.60 197.2 2.86 7.2...II.S yi /? 

1898.72 194-5 2.97 7.0.. .11. 7 211 (3 

1898.73 195.2 3.04 ... 3// Hu 

Discovered with the 12-inch. .Vpparentiv un- 
changed. 

1/i (XVI). ../3 (2956). ../3 (Ptib. L. O. 11). ..Hussey ( ).,.] 



General Catalogue of Double Stars 



P 870. B.A.C. 525 







R.A. i'' 


36' 


„23S 


\ 










Decl. + 56 


= 56' 


S 






1880.81 


68% 


1.02 




6.9. 


.. 8.3 


yi 


/? 


1888.82 


59-5 


0.76 








VI 


Sp 


1891.60 


59-7 


I.I I 




6.6. 


.. 8.9 


V^ 


/8 


1898.61 


54-4 


1.20 








m 


/3 



Discovered with the i8j^-inch. The measures 
show slow angular motion. The proper motion of 
this star from Krueger is ofo36 in the direction 
of i52?9. This is sufificient to show that the com- 
ponents are moving together, as otherwise at the 
date of the last measure the position of B would 
be, 35°: I -IS- 
[^ (xni). . .^3. . ./3 (3114). . .p (Piib.L. O. II). . .Sp (in). . .] 

P 453- D.M. (56°) 338 







R.A. ih 37- 7^ ) 












Decl. +56° 31' \ 








1880.81 



224.1 


o.gi 8.8.. 


. 9.1 


i" 


P 


1891.60 


228.5 


0.86 8.4.. 


■ 8.5 


yi 


/8 



Discovered with the 6-inch. There is a pair of 
small stars 5' « of this, D.M. (56°) 337, found and 
measured by /I in 1877; 332?9:2!'74: 9.4. . .10.9 
(1877.47) 4;/. 

[/3 (ix). . ./3 {Mon. Not. xxxvill, 78). . .^ (l, p. 372). . .|83. . .(3 
(3ii4).../3(/>«^. Z. O.ii)...] 



P 509- Lalande 3170 



R.A. 
Decl. 



1878.42 
1890.47 
1891.74 
1895.91 
1897.92 
1897.94 
1809.00 



93 
258 

259 
257 
251 
251 

254 



0.71 
0.70 
0.70 
0.74 
0.83 
0.80 
0-59 



+ 8° 5«' 
8.4 



8.4 



8.0 



8.7 



8.4 



3« 


/8 


3'i 


Sp 


yt 


/8 


III 


L 


3« 


A 


171 


Br 


in 


/3 



Discovered with the 181^-inch. Slow retrograde 
motion. In a low-power field with 2 155, 28'. 9/ 
and 5 '6 «. 

[/3 (x). . ./3". . ./3 (3114). . .(3 {Ptil>. L. O. II). . .Sp (ill). . .Lewis 
{Mon. Not.X.vi, 359) {Greenwich Ohsns. 1895). . . Aitken 
(/(./. 429) .. . Brown ( ) • • . ] 







5 6. Lalande 3205 












R.A. ih 


3«'"43' I 












Decl. — 


7°22't 













// 










1875-55 


167. 1 


2.58 


6.4... 


9.2 


4« 


A 


1877.80 


166.8 


2.70 


7.0. .. 


9.0 


2« 


Cin 


1886.92 


166. 1 


2.62 


6.8. .. 


8.8 


2« 


LM 


1888.65 


167.6 


2.65 


6.9... 


9.6 


yi 


Lv 


1893.81 


168.0 


2.61 


7.0.. . 


9-7 


yi 


W 



Discovered with the 6-inch. Without change. 

[(3 (i). . .(3 {Man. Not. xxxill, 351). ..A (i). . .Cin^. .LM.. 
Lv'... Wilson ( )...] 





p 


784. D.M 


(22^) 269 










R.A. ih 


39 


"34^ \ 
° 18' \ 










Decl. + 


22 






1881.70 




46.7 


1.86 




8.9... 9.5 


3« 


^ 


1887.79 


47-9 


2.16 




87.... 9.5 


Z" 


Com 


1893.84 


45-7 


1.26 




8.5... 9.5 


m 


W 



Discovered with the 15^ -inch at the Washburn 
Observatory. Probably without change. 

[P (xil). . .13*. . .Comstock {Pui. IVashhurn Oisy.vi). . .Wilson 
( )•..] 

P 736. D.M. (38°) 347 



R.A. ih 39™ 38^ 
Decl. + 38° 20' 

A and B 



1879.94 209.0 

1890.90 209.3 

1898.76 207.5 

1898.77 210.5 



0.86 
0.77 
0.82 
0.86 



8.5- 
8.5- 
8.4. 



10.3 

, I i.o 

8.7 



1832 

1845 
1850 
1865 
1879 
1890 
1898 
1898 
1808 



•93 


[15- 


.08 


[13 


.72 


[17. 


•49 


116. 


.87 : 


15- 


.go ] 


15^ 


75 1 


15^ 


•77 ] 


16. 


.87 1 


16. 



A and C (= S 157) 

;.5... 



12.26 

11.49 

12.69 
12.19 
12.40 

12.56 

12.55 
12.79 

12.48 



8.3. 
8.7. 

8.5., 

8.5. 



9.0 



9.2 
9.2 

8.7 
9.6 



yi 

in 
yi 



yi 
111 
111 

yi 

yi 



/8 
Hu 



Ma 
Ma 
J 

Hu 
L 



The duplicity of the principal star of 2 157 was 
discovered with the 6-inch. Thus far no change 



Discovered from iSji to i8gg by S. W. Burnham 



25 



is shown. The distant star appears to be fixed. 
The foregoing are all the measures of AC. 

[j3 (xI).../3^..(33...;3 (3048)... /3 [Pub. L. O. I, n)...A (11) 
...Madler {Dorpat Obsns. xill) {Fixslern-Systeme l) . . . 
Hussey ( ) . . . Lewis \Mon. Not. Lix, 400) . . . ] 





P 


871. Lalandc 3289 










R.A. i" 


41" 49= \ 
1° 33' \ 










Decl. — 






1879.79 


350-3 


i.4± 


8.5... 9.5 


3« 


Cin 


1879.88 


352-6 


1.88 


8.4. . . 9.0 


4« 


/8 


1886.66 


351-3 


2.28 


8.4. . . 9.2 


yi 


LM 


1888.30 


352.0 


1.97 


8.1. . . 9.4 


yi 


Lv 


1898.68 


352.3 


2.08 


8.0. . . 9.0 


3« 


Cg 


Disco\ 


ered with the 


i8>^-inch. 


Apparently 



without motion. 

[yS (xiii). . .(33. . .Cin«. . .LM. . .Lv'. . .Cogshall 



P 510. Rumker 430 



R.A. i'' 42™ 4'' 
Decl. + 15° 43' 







A and B 








1878.06 


337-4 


I-S9 


8.0. 


. 12.0 


\n 


/8 


1891.92 


335-3 


1-54 


8.1. 


.10.5 


yi 


(i 


1895.90 


333-9 


2.08 






m 


Lew 



A and C (= H' V. 92) 



1783.04 
1878.06 
1891.92 



172 


H' 


in 


iS 


yi 


/8 



322.7 51.27 
326.4 53-56 

327-2 53-35 8.2... 

The close pair was discovered with the i8i.^-inch. 
The measures of both companions are insufificient 
to determine the question of motion, but the change, 
if any, is very slow. All the measures of AC are 
given above. 

[/3 (x). . .|3'. . ./3 (3114). . ./3 {Pub. L. O. II). . .Lewis {Mon. 
, Not. LVI, 359) {Greenwick Obsiis., 1895). • •] 





p 


511. S.D 


(2") 


299 










R.A. i" 


42 


-^ 40* 


\ 










Dec]. — 


2 


J - 


\ 










B and C 








1878.29 




316.0 


3-69 




8.4. 


■ 12.5 


3« 


/? 


1878.94 


3I0.I 


4.20 




8.5. 


• 13 


m 


/3 


1891.92 


317-4 


3-91 




8.2. 


.11.6 


i" 


/? 


1898.71 


315-2 


3.81 






.13.0 


2 7t 


^ 


1898.72 


315-2 


4. II 






.13.2 


3" 


Bd 







A and B ( = 


= S I 


70 






1829.91 


157-6 


2 7" 89 


8-5 


.- 8.5 


2« 


2 


1847.07 


158-7 








I« 


Ma 


1865.44 


159-1 


29.14 


8.2 


. . 8.6 


5" 


J 


1879.05 


159.6 


29.68 


8.5. 


.. 8.5 


7« 


/? 


1891.92 


159-9 


30-23 


8.2. 




3" 


ft 


1898.71 


160.0 


30-83 


8.5. 


.. 8.5 


2 71 


ft 


1898.72 


160. 1 


30.40 


8.0 


■■ 8.3 


3« 


Bd 



The close companion to B was discovered with the 
18%-inch. There is probably no change to this 
time. The distance of AB is increasing. The 
motion is undoubtedly rectilinear. This change 
from 1829 to 1898 gives for the proper motion of 
A, o!'o46 in the direction of 2?4. All the meas- 
ures of AB are given above. 

[i3 (x).../3'.../33...,3 (3ii4).../3 {Pub. L. O. 11)... /3 {A. &^ 
A. -P. XIII, 17). . .^ (11). . .Madlei {Pixstern-Sysieme u) . . . 
Boothroyd ( ) . . . ] 



P IO16. D.M. (32^) 324 



R.A. i'' 42"' 52^ 
Decl. + 32° 29' 



1890.90 207.8 

1897.95 202.5 

1897.86 202.6 

1898.79 209.6 

1898.93 208.3 



Discovered with the 18^ -inch 



0-59 


8.5.. 


. 8 


5 


3'^ 


ft 


0.46 








2 71 


Bow 


0.47 








171 


L 


0.67 








3« 


Hu 


0.60 








I// 


Bow 



(xiii)... (33 (app.).../3 (3048)... /3 (Pub. L. O. 11) ... Lewis 
and Bowyer {Mon. Not. Lix, 400). . . Hussey ( )■ . ■] 



P lOOI. O. Arg. S. 1090 

R.A. l'' 43"' 55 \ 
Decl. — iS° 59' \ 



1881.55 2.7 



S.o. 



3// ft 



1893.81 358.2 0.9S 8. 2... I 1. 5 \/t W 

1898.89 6.0 0.97 8. 2... 12. 7 2/1 Cg 

Discovered with the 1 2-inch. Probably no 

change. 

[/9 (xiii).../33... Wilson ( )... Cogshall ( )...] 



General Catalogue of Double Stars 



P 1168. w\ I. 758 

R.A. i^ 43m 48^ \ 
Decl. — 10° 58' \ 

O II ^ 

1890.71 203.0 0.32 8.0... .^8. 3 4n p 

1898.89 210.3 0.35 8.2... 8.2 2« A 

1899.00 202.0 0.72 8 ... 9.0 m Bd 

Discovered with the 36-inch. It is i™ 44^/ and 
2 .'4 J of C Ci'^^- 

[(3 (XVII)... (3 (3047)... (3 (PitS. L. O. ii)...Aitken ( )... 
Boothroyd ()...] 



P I169. D.M. (51°) 420 







R 


A. i^ 


44" 17=^ \ 










D 


eel. + 


51° 46' S 






1890.85 



206.4 




2.20 


8.5. ..12.3 


3« 


/3 


1898.71 


203-5 




2-35 


8.4.. .11.3 


2;? 


/3 


1898.73 


206.7 




2.32 




yi 


Hu 


Discovered wi 


th the 12 


-inch. 






W (XVII). 


■ •i3(3047). 


./3 {PieA. L. 0. II). . .Hussey ( 


)•■ 



P 259, W. T. 805 



R.A. ih 


46 


™ 20^; I 






Decl. — 


10 


° 19' S 






4-51 




8.7. ..II. 2 


yi 


J 


4-25 




8.2... 9.7 


3« 


Cin 


4-52 




8.0. . . 10.4 


2n 


Lv 


4-56 




7.7... 9-8 


3« 


Cg 



1875.82 236.0 

1877.86 236.8 

1889.97 239.7 

1898.69 237.8 



Discovered with the 9.4-inch of the Dartmouth 
College Observatory. Probably without change. 

[/3 (v)...J (i)...Cin't...Lv'...Cogshall ( )...] 





p 


26 


0. Lalande 3444 










R 


A. i" 


46"' 45' \ 












D 


eel. + 


14° SI' i 








1875.81 




228.1 




11 
0.56 


8.3--. 


9.0 


3« 


A 


1884.97 


230.6 




0.64 


8.0. .. 


8.0 


211 


Ho 


1892.86 


232.7 




0.70 


8.0... 


8.0 


111 


J 


1893-73 


232.6 




0.70 


8.0. .. 


8.1 


\n 


W 


1897.98 


234.0 




0.70 






211 


Br 



Discovered with the 6 inch. The change, if any, 
is very slow. 

[^ (v). . .^ {Mon. Not. WW, 31). . .4 (l). . .Hough (2978). . . 
Jones [Proc. Ilaverford Coll. Obsy. 1892). . .Brown ( ) 
Wilson ()...] 



P 512. D.M. (18°) 244 

R.A. i'' 47"' 12^ / 
Decl. + 18° 42' \ 



1878.01 


27-3 


1-45 


9.0. 


■13 


2Jl 


^ 


1890.58 


23.8 


1.64 


8.6. 


.11.7 


3« 


^ 


1895.87 


292.0 


1.25 


8.6. 


.11.7 


\n 


L 


1897.86 


17.2 


1.84 


8.6. 


.11.7 


\)i 


L 


1898.88 


18.3 


1-97 


8.0. . 


.12.5 


m 


A 


1898.96 


23.8 


1-54 


8.9. 


.13.2 


3" 


/3 



Discovered with the 183^ -inch. This star is a 
distant companion to y Arietis. The measures are 
not sufficient to decide as to relative motion. There 
seems to be an error in the angle of 1895. The 
following are all the measures connecting the star 
with y Arietis: 

7 Arietis (A) and (3512 



1823.86 


85.6 


228.76 


I« 


Sh 


1878.71 


84-3 


223.82 


l/l 


/8 


1898.92 


83-9 


223.23 


m 


/8 



The principal star of y Arietis has a proper 
motion of o!'io7 in the direction of 152:4 
(AuwERs), and this -substantially accounts for the 
change. 

[(3 (x) . . . /3' . . . |8 (3048) . . . /3 [Pub. L. O. II) . . . Lewis {Mon. Not. 
L"^'!. 359; Lix, 400) [Greenwich Obsns. 1895). . . Aitken 



P 183. Lalande 3487 









R.A. i" 


47 


"■ 21= } 












Decl. — 


17 


° 20' \ 













II 












1875.92 


226.4 






8.5.- 


.10.5 


in 


Cin 


IS76 


03 


227.9 


2.69 




8.4.. 


. 9.4 


■\'t 


J 


1877 


79 


226.9 


.... 




8.0. . 


. 9.0 


\n 


Cin 


1879 


77 


226.7 


2.42 




8.0. . 


• 9-5 


Ml 


Cin 


1882 


76 


229.6 


2.72 




8.5.- 


■ 9-5 


\n 


W 


1885 


95 


227.5 


2.40 




8 .. 


. 1 1 


in 


LM 


1893 


81 


227.6 


2.62 




8.0. . 


. 9.8 


211 


W 


1898 


•85 


229.2 


2.60 




8 . . 


. 8.7 


y 


Bd 



Discovered with the 6-inch. Evidently fixed. 

[/3 (iv). ..|3 (yI/o«.iVo/. xxxiv, 382). ..A(\).. .Cin3. . .Cin*... 
Cin«. ..Wilson (Cin-°). . .LM .. .Wilson ( )... Booth- 
royd ( )...] 



Discovered from iSyi to i8gg by S. W. Burnham 



27 



p 7- 58 Ceti 







R.A. i" 


SI" 43^ \ 












Decl. — 


2° 39' S 













// 










1875-53 


12. 1 


2.86 


7.0. . 


12.0 


Z'l 


J 


1877.78 


II. 4 


2.85 


6.7.. 


10.8 


I'l 


Cin 


1880.94 


12.8 


2.73 


6.2.. 


II. 


2/1 


iS 


1886.91 


10.9 


3.10 


7.0. . 


10.8 


4;/ 


LM 


1888.99 


12.6 


2.63 


7.0. . 


II-5 


2« 


T 


1898.63 


20.5 


2.70 


6.0. . 


10.7 


2 71 


iS 



Discovered with the 6-inch. Auwers gives the 
proper motion of this star as o!'o25 in the direc- 
tion of 36?8. The position of the small star, if 
fixed in space, should be at the date of the last 
measures in 1898, 6?2 : 2f35. It is probable that 
the two stars are moving together. 

[/3 (i). . .^(Mon. Not.xyi^iu, 351). . ./33. . . zl (i) . . .Cin*. . .LM 
. . .Tarrant (2991). . .] 



P 513' 48 Cassio peine 









R.A. i'' 


52™ 7=^ 


\ 










Decl. + 


70' 19' \ 










A and B 






1878.69 



265.0 


// 
1.05 


5-0. 


■ 7-0 


i« 


J 


1878 


70 


264.4 


1.04 






yi 


/8 


1879 


23 


264.5 


0.96 


5-0. 


• 7.0 


in 


02 


1879 


56 


265.6 


1. 00 




.. 8.0 


2)1 


iS 


I88I 


67 


271.9 


0.76 




• 7-5 


\n 


/8 


1883 


78 


269.7 


1.07 




■ 7.0 


5« 


En 


1885 


77 


284.9 








\n 


H2 


1886 


03 


270.1 


1.03 




■ 7-3 


A'l 


T 


1888 


70 


298.1 


0.83 




• 6.3 


4" 


/8 


1888 


99 


304.9 


0.80 




. 8 


i'l 


HI 


1889 


30 


294.5 


0.69 






2)1 


T 


1889 


52 


304.4 


0.76 




■ 9 


3" 


;8 


1890 


23 


301.0 


0.57 






2)t 


T 


1890 


62 


308.6 


0.55 




• 7.5 


A>t 


/8 


1 89 1 


61 


313-5 


0.58 




• 7-7 


A,)l 


/? 


1892 


99 


317-2 


o.5--i= 






\n 


Sp 


1893 


47 


322.2 


0.65 






2)1 


Bar 


1896 


09 


333-7 


o.5± 






2)1 


Sp 


1898 


92 


5-9 


0.36 


5-2. 


• 7-2 


yi 


A 






A and C 






1878.80 


49-4 


23-98 


-■-13-5 


\)l 


/3 


1891.62 


51.2 


23.67 


...13.6 


y 


/? 


1898 


78 


50-3 


23.81 




■ 13-0 


v> 


/3 



A and D 
1898.86 83.3 47.09 ...13 i;/ ft 

This most interesting binary was discovered with 
the 18^ -inch, but at that time it was easily seen 
with the 6-inch. It is now (1898) a very difficult 
object, and only measurable with a large aperture 
under the best conditions. The motion of the 
companion has been nearly a quadrant since the 
first measures, and it may prove to have a short 
period, but a much larger arc is required to give 
even a rough approximation of the orbit. 

The principal positions are shown on the follow- 
ing diagram : 




Scale 
48 Cassiopeias. y3 513 



Auwers gives the proper motion of this star 
0^069 in the direction of 262? 2. If the small star 
did not have this movement its position at the date 
of the measures in 1896 should be 68?3 : o.'i6. 
It is obvious that the smaller star has the same 
proper motion, and at the same time a retrograde 
motion, around the principal star. If the change 
shown by the measures was due to the difference of 
two proper motions, it would have been an easy 
pair at the time of the observations of 2 and 02, 
and therefore catalogued as a double star long ago. 
It is probable that the distance at the time of dis- 
covery was about maximum. 

[/3 (x).../3'.../3-...,3'.../3^../3 (2875.2957.3048,31 14)... /3 
{/"ukL. O. II). . . J (1). . .H2( ). . .02 {Poidkmva Obsns. 
x). . .Engelmann (2678). . .Tarrant (2876,3186). . . Hall 
(u). . .Barnard (.•/./. 447). .. Sp (ni). . .Aitken ( )...] 



28 



General Catalogue of Double Stars 



P 514. Lalande 3698 



R.A. i" 53- 57^ 
Dec). — 13° 54' 



1877.69 135.3 
1S91.92 134.2 
1898.84 133.0 



6.20 8.0. 

6.36 8.1. 

6.31 8.0 . . . 10.2 



12.0 i;/ /3 
10. o 3« y8 



Bd 



Discovered with the 18^ -inch. By a clerical 
error the angle in /3 (X) is erroneously printed 
285?5. The components seem to be fixed. 

[/S (x).. . /3'. . .(3 (3ii4)...i3 {Ptih. L. O. n). . .Boothroyd 



P 785. 49 Cassiopeiae 



245 



1881.70 
1885.87 
1888.83 
1889.52 243 
1898.65 244 



243 
247 



R.A. l" 
Decl. + 

// 

5.22 
5.82 

5-13 
5-40 
5-35 



54™ 4= 
75° 32° 

6.0, 
6.0. 
6.0. 



•13 

■^3 
.13.2 

.12.5 



4« 
211 

yi 

2)1 



(3 

H2 

Com 

/3 



Discovered with the 15^ -inch at the Washburn 
Observatory. The proper motion of this star is 
given by Auwers as 0^04 1 in the direction of 
242? 2. This is nearly in the direction of the 
small star, and would, therefore, affect only the 
distance. If the small star was fixed in space, the 
distance at the date of the last measures in 1898 
would be 5*90. The measures show no change in 
this respect, and there is no doubt that the two are 
moving together. 

[/3 (xii).. ./S-i. . ./3 (2957)... i3 {Pud. L. O. 11).. .Comstock 
{Pub. Washburn Obsy. vi) . . . HS ( ) . . . 



P 872. Lalande 3694 



R.A. i" 


54 


>" 28^ 


] 






Decl. + 


32 


° 44' 


\ 






5-25 




8.1. 


..II. 6 


4« 


^ 


4-95 




8.3. 


. .11.8 


2fl 


/? 


4.62 




8.3. 


. . 12.0 


211 


/3 



1880.75 182. 1 

1891.97 185.5 
1898.71 186.5 

Discovered with the 18^ -inch. The measures 
indicate change. 

[^(xin)...i33...)3(3ii4)...^(/'«^. Z. a 11)... 1 



P S^S' Lalande 3707 

R.A. i" 54"' 38^ I ■ 
Decl. + 15° 59' \ 

o ;/ 

1878.38 243.3 1-51 7-7-.-I2.5 2« ^ 

1892.00 244.4 1.31 8. 1... II. 3 3« /3 

Discovered with the 18^ -inch. Without change. 
[/3 (X). . .^'. . .^ (3114). . .;3 {Pub. L. O. u). ..] 



P 873. Radcliffe 597 



R.A. i'' 56" 7= 
Decl. -f 63° 48' 



1880.77 29.1 2.03 7. 3... 10. 9 6« /3 

1891.51 27.2 2.12 7.0... 10. 9 yi /3 

Discovered with the 18^-inch. Apparently 
fixed. 

[/3 (XIII)... (3^.. ,3 (3114).../? (/'«/;. Z. O. 11)...] 





p 


516. Lalande 385 


I 










R.A. i" 59 


33 \ 












Decl. — I 








1877.92 


285^0 


,1 
1.07 


8.0.. . 


8.0 


211 


^ 


1886.83 


287.4 


0.84 


82 


8.4 


in 


LM 


1888.85 


282.6 


0.69 


7.8... 


8-5 


yi 


Lv 


1890.48 


288.0 


o.7± 






4« 


Sp 


1892.91 


288.1 


o.6d= 






\n 


Sp 


1893.77 


286.2 


0-93 


8.0. .. 


8.1 


271 


W 


1898.70 


289.4 


0.90 


8.8... 


8.8 


yi 


Cg 



Discovered with the iS^^-inch. Change is un- 
certain. 

[/3 (x)...(3'...LM...Lv^..Sp (in)... Wilson ( )... Cog- 
shall ( )...] 



P 874. 5 Persci 



R.A. 



3'" 8^ 







Decl. -f 


57° 5' i 








1880.60 




273.6 


5.60 


6.5. 


.12.5 


yi 


/3 


I89I.5I 


274.1 


5-40 


6.0. 


.13.2 


y 


/8 


1898.57 


272.0 


5-34 


6.0. 


•13-5 


2!l 


yS 



Discovered with the 18^ -inch. Krueger gives 
the annual proper motion of this star ofo6o in the 



Discovered from iSji to i8gg by S. W. Burnham 



2Q 



direction of 277?o. This would change only the 
distance of the companion. If the small star was 
fixed, the distance should have decreased i " from 
1880 to 1898. The measures show no material 
change in the position of B, so that it is certain, if 
this value of the proper motion is substantially cor- 
rect, that the two stars are moving together, and 
probably make a physical system. 

[^ (XIII). . .(33. ..^ {Observatory \\\, 582). . ./3 (31 14). . ./3 {Pub. 
L. C. 11) . . . ] 



P 1275. O. Arg. N. 2491 



R.A. 2'> e"! 21^ 
Decl. + 54° 45' 



1898.66 203.7 3.26 7. 5... 13.0 i,n /3 

Discovered with the 40-inch in looking for the 
next pair, jS 786. 



P 786. D.M. (55 = ) 563 







R.A. 2^ 


9"' 18^ ) 












Decl. + 


55° 12' \ 








1881.57 


353-0 


4.89 


8.5. • 


- 9-9 


4;/ 


^ 


1886.86 


350-6 


5-07 






2 71 


UL 


1888.06 


349-7 


5-30 


8.2. . 


• 9-7 


y^ 


Com 


1898.60 


35I-I 


5.20 


8.5.. 


. 8.7 


211 


^ 



Discovered with the isj^-inch at the Washburn 
Observatory. There seems to be no material 
change. 

\P (xil). . ./S''. . .Updegraff, Lamb and Comstock {Pub. Wash- 
burn Obsy. V, vi). . .] 



P 1170. X Pe^sei 



R.A. 2'' 9'" 39* 
Decl. -f 56° 57' 







B and C 








1890.74 


313-3 


0.27 II. 5. 
A and BC 


.11.7 


3« 


/8 


1879-55 


352°6 


70.47 


.10.5 


2n 


> 


1890,74 


353-3 


70.39 6.2. 


. I I.O 


y 


a 


1898.60 


353-6 


70.22 6.0. 


. 10.7 


211 


^ 



A and D (= -S 409) 





i« 


S 


9.0 


\n 


li 


8.6 


2n 


li 



1824.99 136.5 124.53 

1879-54 136.3 122.66 

1898.60 136.2 123.12 



The close pair was discovered with the 36-inch. 
It is a difficult pair even with that aperture. A is 
the principal star in the great cluster in Perseus. 
A and D make the double star, South 409. All the 
measures of this are given above. 

The principal star has a proper motion of oro2o 
in the direction of 239?8 (Krueger). The distant 
companions have no connection with it. 

[^(xvn).../3(3047).../33.../3(/'«^. Z. O. 11)...] 



P 437- Lalande 4291 

R.A. 2^ 12"' 26^ / 
Decl. + 3° 39M 



1877-95 


32-4 


7.16 


8.0. . 


.12.5 


2// 


P 


1879.66 


29.6 


5-81 


8.0.. 


. 12.0 


\n 


Cin 


1891.96 


33-4 


7.19 


8.0. 


•I 1-3 


3« 


/3 


1898.73 


31-7 


7.12 


8.3. 


.11.5 


\n 


y8 



Discovered with the 18^ -inch. The components 
appear to be relatively fixed. 

[/3 (viii). . ./3 {Am. /our. Sa., ]u]y 1877). . .p (3114). . ./S {Pud. 
L. O. ii)...Cin«...] 



P II71. D.M. (56 ) 556 



R.A. 2^ 12™ 46" 
Decl. -f 56° 18' 



1890.71 21.4 1. 01 



8.6. 



13.2 yi (3 



Discovered with the 36-inch. In the great Per- 
seus cluster ; the J star of two about i ' apart. It 
is 9.2 m in D.M. 

[/3(xvi!)...^(3047)...^(/'«*. Z. a II)...] 
P 875. 9 Pcrsei 







R.A. 2" 


14- 


n qS 


\ 










Decl. + 


55 


" iS' 


S 






ISS0.6I 




162.0 


11-58 




5-5- 


-12.3 


3'' 


a 


I89I.5I 


i6i.o 


I 1.64 




5-8 ■ 


■ - 13-5 


y 


13 


1898.70 


161. 7 


1 1.40 




6.0. 


..13.0 


111 


fi 



Discovered with the iS^^-'nch. The proper 
motion, according to Krueger, is o'.ozi in the 



General Catalogtie of Double Stars 



direction of 241? 8. The measures show no rela- 
tive motion, but it is probably only an optical pair. 

[(3 (xiii). . ./33. . ./3 (As/. Reg. xviii, 286). . ./3 (3114). . .^(Fub. 
L. 0. 11)...] 



P 8. W II. 210 



R.A. 



2" 14" 59" 



Dec). 4- 8" 20' 



1875.31 200.4 

1880.92 204.3 

1888.87 204.8 

1898.78 207.2 

Discovered with the 6-inch. Apparently un- 
changed. 

[/3 (i). . ./3 [Mon. Not. xxxiii, 351). . ./33. . .A (i). . .Lv'. . .Lv 
[Sid. Mess. VIII, 77) . . . Cogshall ( ) . . . ] 



0.96 


8.3.. 


. 9.2 


A" 


J 


o.go 


8.0. . 


. 9.0 


i?t 


li 


1.07 


8.0.. 


. 9.1 


S" 


Lv 


1-37 


7.8.. 


. 9.0 


3« 


Cg 



P 876. D.M. (32 = ) 433 







R.A. 2" 


16™ 46^ ) 
32° 58' \ 












Decl. -f 












A and B 








1880.13 


235-4 


1. 19 


7-5- - 


12.3 


4;/ 


a 


1891.87 


231. 1 


1.04 


7.7. . 


II. 9 


2« 


/3 


1895.87 


233-6 


1. 00 


7.7.. 


II. 9 


1)1 


L 


1898.74 


237-3 


1. 17 
CandD( 


= 2258) 




211 


Hu 


1832.53 




26.8 


5-89 


9-5- - 


10.2 


?," 


2 


1845.44 


25.6 


5-97 






\n 


Ma 


1867.00 


28.7 


5-89 


9.7. . 


10.3 


3" 


J 


1880.13 


28.7 


6.01 






4" 


/8 


1891.87 


28.1 


6.og 


8.9.. 


9.1 


2 71 


i8 


1895.87 


33-7 


6.14 


8.9.. 


9.2 


in 


L 


1898.75 


28.2 


6.2 I 
A ar 


d C 




yi 


Hu 


1832.18 


I43°6 


// 
70.26 


7-5-- 




271 


S 


1867.99 


145.0 


70.28 


7-3-- 




y 


J 


1879.49 


145-4 


70.31 






2 71 


/8 


1891.87 


146.2 


70.06 






2 7! 


(i 


1898.74 


146 3 


70.74 






2« 


Hu 



The duplicity of the principal star of 2 258 was 
detected with the iS^^Mnch. The above are all 



the measures of the S components. Evidently 
they are relatively fixed. 

1/3 (xiii)... (33... (3 (3ii4).../3 (/>«(!>. L. 0. 11)... Lewis {Mon. 
Not.\J\-\, 359) {Gt-eenwich Obsus. 1895). . .Hussey ( ) 
. . . Madler [Fixs/ern-Systeme l). . .A (11 ) . . . ] 



P 738. Lacaille 720 



R.A. 2'' 18'" 0" 



Decl. 



30° 25' 



1879.70 


182.6 


0.64 


7-5-- 


• 7-5 


2 71 


iS 


1891.80 


174-3 


0-55 


7.1.. 


- 7-4 


yi 


li 


1899.00 


184. 1 


0-79 


7 • - 


. 8 


171 


Ed 



Discovered with the 6-inch at Mt. Hamilton in 
1879. "ihe magnitude in Lacaille is 6J^, and 
71^ in Gould. Porter gives the proper motion 
o!i65 in the direction of 2i7?3. It is obvious that 
this is common to both components. The relative 
motion is slow. 

[^ (xi). . ./3^ . .j3 (3114). ..|3 (i'^i^. L. 0. I, 11).. .Boothroyd 



p 517. Ccti 374 







R.A. 2" 


18"' 54' 


i 










Decl. — 


4° 26' 










A and B 








1877.99 


248% 


io!'82 


7-5- 


- -12.5 


i/i 


/8 


1878.99 


247.4 


10.84 


6.7. 


..12.5 


yi 


iS 


1898.69 


248.6 


II. 13 


7-0- 


. .10.5 


2 71 


/8 


1898.76 


248.8 


11-33 


7.0. 


. . 12.0 


2 71 


A 


1898.91 


248.4 


11-37 


6.5. 


- ■ 9-5 


17! 


Bd 






A andC 








1878.99 


286% 


;/ 

54-97 




..II. 5 


m 


^ 


1898.69 


289.1 


55-54 




--10-5 


2 71 


^ 


1898.76 


289.0 


56.29 




. . 12.2 


2n 


A 


1 898.9.1 


289.2 


56.11 




•■ 9-5 


171 


Bd 



Discovered with the 18^-inch. There seems to 
be no material change. The principal star is 
Lalande 4486. 

[/3 (x).../3'.../33...Aitken ( ) . . . Boothroyd ( )...] 



Discovered froin iSyi to i8gg by S. W. Burnham 



31 



P 739- O. Arg. S. 1542 



1879.68 264.5 
1891.77 266.0 
1897.04 261.4 



R.A. 2" 19™ 33S 
Decl. — 30° 24' 



2.13 8.1. .. 8.7 3« /3 
1.45 8.I.. . 8.4 3;? ^ 
1.69 ... 211 A. 



Discovered with the 6-inch on Mt. Hamilton in 
1879. There is but little, if any, change. 

[;8 (xI).../3^../3 (3ii4)...;3 (P,d>. L. O. I, ll)..,Ailken 
(3465). ••] 



P I172. D.M. (56') 635 



R.A. 2I' 21™ 27^ 
Decl. -|- 56° 42 



1890.71 238.3 1.64 8. 4... 10. 9 yi /3 

Discovered with the 36-inch ; in the borders of 
the cluster in Perseus. 

[|3(xvii)...,3(3047)...i3(/'«^. Z. O. 11)...] 



P 518. Ceti 389 



1878.00 138.4 
1891.75 138.7 



R.A. 2'' 23™ 11 = 
Decl. + 9' 2' 



1.57 6.5...11.0 3;/ /? 

1.70 6. 4... II. 3 yi /? 



Discovered with the T8^-inch. A naked-eye star 
in Cetus. It has no appreciable proper motion. 
B.A.C. 764. 

[^ (x)...(3'.../3(3ii4)...;3 (/'«/;. Z. (9. 11),..] 



P 519. WMI.367 







R.A. 2" 


23"' 38= 


1 










Decl. — 


2° 48' 






1877-95 




61.2 


// 


8.5. 


. . 10. 


\n 


Cin 


1878.40 


58.8 


0.80 


8.2. 


•• 9-7 


in 


P 


1886.69 


55-2 


1. 17 


8.3. 


•• 9-5 


y> 


LM 


1891.86 


54-4 


0.69 


8.3. 


.. 8.9 


2n 


/8 


1898.79 


59-2 


0.86 


8.2. 


.. 9.2 


2," 


A 


1898.91 


.S7-5 


0.93 


8.5- 


•■ 9-3 


V 


Bd 



Discovered with the 18^ -inch. Change is un- 
certain. 

[p (x).../3'.../3^..^ (3114)...^ {Pi'b- L. an)...Cin^.. 
LM...Aitken( ) . . .Boothroyd ( )...] 



P 304. Lalande 4613 



K.A. 2'' 24'" s'^ 
Decl. + 36' 56' 



7-5 • 


.11.5 


\n 


n 


7-5 • 


.11.5 


III 


ft 


7-7- 


.11.2 


y 


ft 






211 


ft 



1878.90 282.3 17.70 

1880.77 283.9 18.02 

1891.99 282.8 19.09 

1898.18 282.4 19.30 



Discovered with the 6-inch. The distance is in- 
creasing, and the change in a pair of this kind 
would be almost necessarily due to proper motion. 
The measures indicate an annual movement of 
about ofo8 in the direction of 102°. 

[(3 (vi)...|33...(3 (2062,3114)... /3 {Pub. L. U.u)...] 



P 520. Lalande 4858 

R.A. 2'' 30" 49= } 
Decl. — 4' b' \ 



1877.96 


210.2 


0.78 


9.0. 


.10.5 


m 


ft 


1888.94 


199.8 


0.89 


8.6.. 


.10.5 


in 


LM 


1898.81 


201.7 


0.92 


8.4. 


. 10.2 


4" 


A 


1898.82 


207.0 


0.88 


8.5 ■■ 


• IO-5 


in 


Bd 



Discovered with the 6-inch. 
(3 (x).. ,(3'. ..LM...Aitken ( ) . . . Boothroyd ( ). 

P 305. Pt^'-sci 58 

R.A. 2" 30"' 53' I 
Decl. + 37" 12' \ 



1875.82 205.2 20.80 

1888.71 205.5 20.77 



7.0. .. I 1.2 4// 



:// /i 



Discovered with the 6-inch. The measures by 
J, given above, are credited by him to ft 304. which 
is in the same vicinity. Lalande 4S30. 

[/3(vi)...J (i).../3 (2062,2957)... /3(/'//^ L. O. 11)... J 



32 



General Catalogue of Doitble Stars 



P 521. Persei 67 



R.A. 2^ 


34 


"59= \ 








Decl. + 


47 


° 45' i 








5.86 




6.2.. 


. II. 2 


zn 


^ 


5-63 








271 


H2 


5.62 




6.5.. 


.11.5 


2)1 


/? 



1878.66 153.7 
1885.95 153. 1 
1891.97 154-5 



A naked-eye star in Perseus, Heis 6-7 m (^ L 
4942). Discovered with the i8j^-inch. Without 
change. 

[^(x)...^'.../3(3ii4)...;3(/'«^-^-0. ii)...HS ( )...] 



P 522. |x Arietis 







R.A. 2" 


35™ 36= / 

19° 30' S 










Decl. + 






1878.75 


265°.8 


// 
19.10 


6 ... 12.5 


m 


/3 


1892.00 


263.1 


19.25 


6 .-.13-3 


yi 


/8 


1898.71 


263.9 


19.36 


5>^---i3 


\71 


/? 



Discovered with the iS^^-inch. The proper 
motion of this star is of 042 in the direction of 
i62?3 (AuwERs). The change is undoubtedly due 
to the proper motion of A. 

[)3(x)...^^../3(3^I4)-.. {P'^b. L. 0.11)...] 





p 


306. Arietis 307 










R.A. 2'' 
Decl. + 


36'" 53= \ 
25° 8' \ 






1876.43 
1876.74 




15-9 
18.1 


3.08 
2.99 


7 . ..II 
6.7 .. . 10 


4^7 

\7l 


HI 
02 


1876.79 
1881.78 


17-3 

19.6 


2-93 
3.10 


6.4 ... 1 1. 
6.5. . . II. 


211 


J 
Ho 


1886.00 


17-5 


3.18 




211 


H2 


1887.95 
1892.85 


21.5 
18.9 


3-03 
3-II 


7 . ..II 


3« 


HI 
Bar 



Discovered with the 6 inch. This is a naked-eye 
star in Aries (B.A.C. 834). It has no sensible 
proper motion. 



The measures show no change. 



[/3(vi).../3 (2062)... 4 (l)...OS {Poulkowa Obsns. x)...HS 
( )...Hall (2147)... Hall (i, 11)... Hough (2978)... 
Barnard {A.J. 447) . . . ] 





p 


261. Lacaille 


846 










R.A. 2" 


38 


" 32= 












Decl. — 


28 


° 25' 













// 












1875-95 


102.4 


3.10 




7-7- 


. . 10. 


in 


Cin 


1877.91 


97-7 


3.02 




7.4. 


.. 8.9 


271 


Cin 


1885.19 


99-3 


2.87 




8.0. 


-• 9-5 


yi 


W 


1891.72 


100. 1 


2-77 








\n 


Col 


1898.77 


100. 1 


2.88 




7.6. 


-- 9-4 


4« 


Cg 



Discovered with the 9-4-inch at the Dartmouth 
College Observatory. Apparently unchanged. 

[i3 (v).../3 {Mon. Not. xxxv, 31) .. .Cin3. . .Cin". . .Wilson 
(Cin'°).. .Collins {Proc. Haverford Coll. Obsy. 1891)... 
Cogshall ( )...] 







^ 9- La 


lar 


de 5107 












R.A. 2'' 


39' 


-40s \ 












Decl. + 


35 


° 3' f 








1875.94 



160.6 


1.52 




6.3... 


8.4 


6« 


J 


1876.74 


164.2 


1.62 




6.5--. 


8.0 


\n 


02 


1883.72 


162.6 


1-73 




6.4... 


8-5 


6« 


En 


1885.95 


162.3 


1.63 




. . . 




3« 


H2 


1893.12 


162.6 


1.28 








i« 


Maw 



Discovered with the 6-inch. No evidence of mo- 
tion. The proper motion of this star, if any, is small- 

[;3 (i).../3 {Mon. Not. xxxili, 351)... J (l). . . Engelmann 
(2678). . .OS {Poulkowa Obsns. x). . .Maw {Mem. R.A.S 
Ll)...HS( )...] 





P83 


Lalande 51 


40 










R.A. 2" 40-" 0= ) 










Decl. — 5° 28' \ 






1876.03 




121. 3 




1.40 7.5. 


. 10. 1 


4« 


A 


1877.91 


122.2 




1. 00 7.2. 


-■ 9-5 


271 


Cin 


1886.85 


1 16.2 




0.98 7.1. 


. 8.7 


6,71 


LM 


1888.77 


109.4 




1. 01 7.8. 


. 9-8 


271 


Lv 


1891.77 


1 1 1.7 




0.90 7.9. 


.. 9.1 


in 


^ 


1891.78 


117. 1 




1.03 8.5. 


.10.5 


271 


Col 


1892.88 


1 12.6 




0.86 8.0. 


. 8.8 


\n 


J 


1896.06 


106.6 




0.83 




Zn 


Sp 


1898.76 


104.8 




0.98 7.2. 


. 9.2 


2 71 


A 


Discovered w 


ith 


the 6-inch. 


Chan 


ge in 


bot 



angle and distance is clearly shown by the measures, 
and it is certainly a binary system. 

[^ (11). . .|3 {Mon. Not. xxxill, 437). . .i3 (3114). . .(3 {Pub. L' 
O. II). . .Cin''. . .LM. . .Lv'. . .Collins and Jones {Proc. 
Haverford Coll. Obsy., 1891, 1892)... Sp (ill). . . Aitken 



Discovered from iSji to i8gg by S. W. Burnham 





p 


307' Lalande 5 


[33 










R.A. 2^ 


40 


™29= ) 












Dec). + 


29 


»ii'i 








1876.79 


315-6 


14.97 




7.1.. 


.11.5 


4« 


J 


1877.18 


315-9 


15-44 




8 . . 


. I i 


3« 


HI 


1877.72 


315-4 


14.91 




7.0. . 


.11.5 


\7l 


i3 


1880.92 


316.0 


15-49 




7.0. . 


.11.8 


\n 


/3 



Discovered with the 6-inch. The principal star 
was thought to be slightly elongated with the same 
instrument on Mt. Hamilton in 1879, and it was 
entered in the list of new pairs discovered at that 
place as (3 740. A subsequent examination with 
the 1 8 J^ -inch at Chicago failed to show any cer- 
tain elongation. It appeared round with the 36- 
inch in 1890, and Sp found it single in 1887, 1888, 
and 1889. It may, therefore, be rejected as a close 
pair. 

[|3 (VI, xi)...(3'...i33...|3 (2062,3048)...^ (Pui. L. O. I, 11) 
...Hall {l)...Sp (III)...] 

P 262. W^ II. 944 









R.A. 2h 


40" 33^ 


\ 










Decl. + 


30° 33 


\ 






1876.29 




65-7 


. 1-57 


8.0 


. . 10. 


6« 


J 


I88I 


85 


68.4 


1-34 


7 


. . 8 


2n 


Ho 


1884 


75 


72.4 


1-93 


8.1 


-■ 9-9 


bn 


En 


I89I 


75 


61.6 


1.64 


8.2 


-- 9-5 


411 


/3 


1895 


89 


59-7 


1-59 


8.2 


.. 9-6 


2/1 


L 


1896 


84 


65.6 


1-35 






\n 


Bow 


1897 


89 


62.3 


•1.50 






4/z 


Bow 


1898 


73 


63-7 


1.60 


8.2 


.. 9.1 


211 


/3 


1898 


97 


247.2 








\n 


Bow 



Discovered with the 9.4-inch at the Dartmouth 
College Observatory. The/ star of a small quadri- 
lateral triangle. But little, if any, change. 

[/3 (v|. . .;3 [Mon. Not. xxxv, 31). . ./3 (3114). . ./3 {Pub. L. O. 
\\)...A (l) . . . Engelmann (2742) ... Hough (2978)... 
Lewis {Mon. Not. LVI. 359) {Greenwich Obsns. 1895)... 
Bowyer {Mon. Not. Lix, 400) . . . ] 

P 1002. O. Arg. S. iSio 



R.A. 2'' 41"' 29^ 
Decl. — 15° S3' 



1881.S4 333.7 1.78 8.0... II. 3 yi /3 

1886.76 336.6 1.64 8.0... 1 1. 8 \n LM 

1898.87 333.6 1.56 7. 8... 12. 7 2'/ Cg 

Discovered with the 12-inch. 
I/a (xni).../S3...LM...Cogshall ( )...] 



P 523. D.M. (33')5i7 

R.A. 2'^ 41"" 55* \ 
Decl. +33'' 28' \ 

o // 

1877.85 210.3 2.25 9.0...11.0 \n ft 

1898.76 208.6 1.65 9.0... 9.9 3« fi 

Discovered with the 18^-inch. In the field 
with 2 310. 

[fi(x)...^\..] 



P 10. Lalande 5276 

R.A. 2'" 44"' 235 } 
Decl. — 5° 29' f 

o ;; 

1874.82 99.2 2.66 7. 2... II. I 4;? J 

1877.85 96.2 2.80 7. 2... 10.2 2« Cin 

1879.68 100. 1 2.56 8.0... 12.0 m Cin 

1898.01 98.6 2.88 ... m Br 

Discovered with the 6-inch. Without change. 

[P{l)...^{Mon. Not. xxxill, 351).. .^ (l)...Cin->. ..Cin«.,. 
Brown ( ) . . . ] 



P 877. Y For /tads 



R.A. 2'i 44"^ 32^ 
Decl. — 25° 3' 

A and B 



1880.93 144-4 11-53 6 ...13 4'' ^ 
1891.96 145.5 12.03 6 ...12.7 2/! /3 

1898.94 143.7 11.69 6. 5... II. 8 yi Bd 



1830 



169.4 45±: 

1880.68 157.0 48.85 

1891.96 155.6 47.24 

1898.94 153.3 46.71 



A and C (= H 2161) 
6 



..II \>! H 

. . 1 1.2 4// (i 

. . 10.5 2/1 ft 

. . 10.7 3// Bd 



The faint companion was detected with the iS^- 
inch. The foregoing are all the measures of the 
Herschel star. Porter finds the proper motion of 
A, o.'i55 '" the direction of 2o5?9. The measures 
of C give o."i7S in 203?8. It is certain, therefore, 
that A and B are moving together, and that C is not 
a member of the svstem. 

1/3 (xiii).../33...^ (3ii4).../3 {Pufi. L. O. 11). . .Boothroyd 
( ) . . . Herschel (Fifth Catalogue, Mem. K. A. 5. vi) . . . ] 



General Catalogiie of Double Stars 









3 524. 2C 


) Persei 










R.A. 2'^ 46 


n gs 


( 










Decl. +37 


° 51' 










A and B 








1878.72 


336-0 


0.25> 






4« 


P 


1880.53 


321 


4 


0.22 


6 


.. 6.7 


3« 


fi 


1881.67 


334 


9 


0.28 


6 


-- 6.5 


i;/ 


/? 


1883.31 


336 


2 


0.20 






-,n 


En 


1886.23 


300 


4 


o-3± 






If! 


H2 


1889.59 


291 


3 


0.17 


5-5 


.. 6.0 


m 


/8 


1890.61 


287 


6 


0.18 


5-0 


.. 6.0 


3« 


/8 


1891.79 


281 


7 


0.15 


5-7 


. . 7.0 


yi 


/3 


1895.72 


257 


9 


0.1 > 






2tl 


Bar 


1895.72 


251 


5 


o.i6± 






2tl 


See 


1896.09 


190 


2 


0.22 






\n 


L 


1897.82 


62 


5 


0.16 






\n 


/3 


1898.02 


184 


5 


Elong. 






211 


L 


1898.92 


47 


6 


0.12 






ifi 


A 


1899.18 


31 


4 


0.12 






in 


A 




AB and C ( = 


= 2 3 


18) 






1829.14 


236^8 


14.08 


5-5 


. . 10. 


2)1 


2 


1851.79 


238 


2 


•13 99 


5-6 


. . 9.0 


i« 


02 


1878.15 


236 


I 


14.04 






i« 


/8 


1880.82 


236 


9 


14.00 




.. 8.8 


m 


^ 


1881.68 


237 


3 


14.02 




. . 9.2 


211 


13 


1890.61 


237 


2 


14.08 




. . 9.2 


yi 


13 


1898.82 

nrn J 


237 


5 


13.90 






3;/ 


/3 



The duplicity of the principal star was discov- 
ered with the 1 8 J^ -inch. It is at all times a diffi- 
cult pair, and the motion is rapid. It is now 
known to be one of the most interesting binaries in 
the heavens. The distance never much exceeds 
of 2, so that it is always a difficult pair, and beyond 
the reach of most telescopes. With the measures 
down to 1 89 1 I made an attempt to find an approxi- 
mate orbit, which gave a period of 27.7 years, and 
Glasenapp, from the same apparent ellipse, found 
substantially the same elements. These results are 
of somewhat doubtful value from uncertainty in the 
adjustment of the measures as to quadrants. As 
the components are of about the same magnitude, 
some of the angles may require a correction of 180°. 
It is possible that all the positions since 1891 
should be in the first quadrant,- and that being so, 
the distance should gradually increase until the 
first revolution since discovery is completed. The 
apparent orbit will be very eccentric, and the period 



probably more than 30 years. Even if the described 
arc is not less than 270°, as it would appear from 
the most probable arrangement of the measures, 
the data would be insufficient for even an approxi- 
mate determination of the orbit, as there would be 
nothing to define the limits of the apparent ellipse 
in the unexpired part of the orbit. The measures 
of the next few years will remedy this, and furnish 
material for getting the elements of the orbit with 
substantial accuracy. 

In the following diagram I have given the prin- 
cipal measures with what seems now to be the most 
probable arrangement with reference to each other. 
The measures of the next few years will determine 
the form of the orbit : 



1S95.' 



1891.8 j 

1890.C«^ 
1889.G 



1880.5 < 




1878.71 



-90^ 



11897.8 



♦ 1899.2 



ofl 0-1 
' I I ■ ' I ' I I ' I 



Scale 
20 Persei. /3 524 

AuwERS gives the proper motion of 20 Persei, 
ofoSi in the direction of 141?!. This would 
change the position-angle of C more than 20° in 
the interval covered by the measures if that star was 
fixed in space. As the measures show no relative 
change, the Herschel companion must be a member 
of the system. 

[^(x)...(3'...j33...|34.../3 (2957,3048,3114)...^ (Pub.L. O. 
II,- pp. 31, 235). . ./3 (Asl. &= A.-P. XII, 404). . .Engelmann 
(2678). . .Barnard {A.J. 447). . .See {A.J. 359). . .Lewis 
{Mon. y\'(7/. Lix, 400). . . Aitken ( ).. .Glasenapp {Ast. 
&= A.-P. XII, 499)... HS ( ).. .] 

There are other measures than those cited of the 
wide pair (=H'in. 60 = S 420 = 2 318). All 



Discovered from i8ji to i8gg by S. W. Burnham 



35 



the observations will be found in the references 
above given, in the original catalogues of Herschel, 
South and Struve, and in the following : 

Madler (Fixstern-Systeme \) {Dorpal Obsns. xi, xil, xill) 
...Herschel ll {Mem. R. A. S. lv)...OS {Poulkowa Obsns. 
ix) . . . Ball [Dunsink Obsns. Part v) . . . J (ll) . . . ] 



P 1 1 73. Arietis 133 



R.A. 2^51'" 38=^ 
Decl. + 23° 39' 



A and B 



1890.88 325.4 
1898.88 331.3 



1890.88 283.6 
1898.88 284.7 
1898.96 288.3 



0.13 
0.15 



7.7.. 



AB and C 

4-63 
4.86 

4-32 



13 



13 



in /? 
\n Hu 



i/i Hu 
1)1 /3 



A fine triple; discovered with the 36-inch. The 
close pair is very difficult. The principal star 
(Lalande 5468) is 6.8 m in D.M. 

1,8 (xvii)...j3 (3047)... /3 {Pub. L. O. ii)...Hussey ( )...] 



P 741- Lacaille 932 
R.A. 2i> 51"^ sS'' \ 



Decl. 



25° 27' \ 







A and B 








1879.69 


158^2 


0-57 


7.7.. 


■ 7-9 


4'/ 


/8 


1891.77 


165.6 


1.26 


7.8.. 


. 8.0 


Z" 


^ 


1898.69 


167.4 


1-39 


8.0. . 


. 8.2 


2 71 


P 



AB and C (^ S 423) 



1824.95 


219. 1 


27-75 


8>^.. 


9 


2U 


S 


1851.04 


221.4 


27.7c 


7-3-- 


7-5 


2n 


WJ 


1879.69 


221.4 


27.80 




7-9 


2tl 


p 


1884.83 


222.3 


27-55 






111 


w 


1891.77 


2 2 1.1 


28.04 




7-9 


V> 


/? 


1898.69 


222.1 


28.11 




8.0 


211 


a 



The duplicity of the principal star of South's 
wide pair was discovered with the 6-inch. The 



measures show decided motion in angle and dis- 
tance. 

[/3(xl).../3^..^ (3ii4).../3(/'z,i. Z. O. I, H)...j 

There has been no change in the position of the 
distant star. The principal measures are given 
above. The following references relate to the wide 
pair : 

[Dunlop {Mem. li. A. S. III)... Jacob (same, xvii)... 
Powell (same, xxv) . . . Hershel (same, vi) {Cape Obsns.)... 
Worster and Jacob {Madras Obsns. first series). . .Glasenapp 
(11). . .Cin". . .Cin5. . .Wilson (Cin'°). . .] 



P 525- B.A.C. 920 



R.A. 2'' 52" 



} 



Decl. + 21° 8' f 



1877.72 


105. 1 


0-59 


7.0. . 


- 7-0 


m 


iS 


1879.69 


107-3 


0-39 


7-5 •■ 


- 7-5 


IN 


/3 


1881.87 


1 19.2 








in 


Big 


1883.30 


100.2 


0.26 






8// 


En 


1886.16 


109.0 


0.45 






211 


H2 


1888.69 


100.2 


0-45 


7.0. . 


- 7-0 


S" 


T 


1890.06 


114. 6 


o.4±: 






3« 


T 


1890.58 


124.6 


0.3 + 






9» 


Sp 


1890.87 


122.2 


0-33 


7.2. . 


■ 7-3 


3" 


/? 


1891.74 


121. 3 


0.29 


7-5- • 


• 7-5 


3« 


/3 


1895.89 


125.9 


0.23 






2// 


Lew 


1896.06 


128.3 


o.35± 






I// 


Sp 


1896.66 


134-4 


0-33 






y 


Lew 


1897.91 


132.6 


0.29 






4" 


Lew 


1898.05 


142.5 


o-35± 






I// 


Sp 


1898.10 


127-3 


0.30 






3" 


Lew 


1898.80 


134-5 


0.32 






y 


Hu 


1898.95 


131.0 


0.40 






Ml 


Bry 



Discovered with the 26 inch at the Xaval Ob- 
servatory. An interesting binary near c Arietis. 
I'he Berlin Catalogue gives the proper motion of 
this star, o.'o62 in the direction of 130'fo. The 
distance is decreasing, and rapid change in the 
angle iiiav be expected. 

[)3 (X) . . ./3'. . .,3=. . .13(3048,3114). . .^{Fub. L. O. II). . .Engel- 
mann (2678). . .Tarrant (2991,3186). . . Bigourdan (Paris 
Obsns. 1883). . .Lewis {Mon. Not. LVI, 359) (Greemvieh 
Obsns. 1895). . .Sp (m). . .Lewis '*"<' Bryant (iJA>«. .W. 
MX, 400)...Hussey ( )...H2: ( )..'] 



General Catalogiie of Dotible Stars 



P II. p^ Eridani 







R.A. 2" 


56"' 49= \ 
8° 9' S 












Decl. — 








1875.64 




87.2 


2.72 


5-4-- 


9.6 


5'^ 


J 


1877.82 


85-9 


2-45 


5-5 •• 


8.8 


2)1 


Cin 


1879.95 


85.1 


2.47 


6.0. . 


10.2 


3« 


^ 


1884.83 


81.8 


2.64 


5-8. . 


9.0 


1)1 


W 


1886.82 


81.8 


2.72 


6.2. . 


9.2 


2)1 


LM 


1887.88 


86.5 


2.49 


5.0. . 


10. 


211 


T 


1888.05 


84-5 


. . . 


6.0. . 


10.3 


1)1 


Lv 


1888.86 


85.0 


2.47 


5-5-- 


9-5 


2)1 


T ■ 


1891.80 


84.8 


2.64 


4-5-- 


8-5 


2)1 


Col 


1898.83 


83.8 


2.41 


6.2. . 


"•3 


yi 


Cg 



I)iscovered with the 6-inch. There appears to 
be no sensible change in either angle or distance. 
This star has no appreciable proper motion. 

[/3(i)...|3 (i1/o;z. iVcA XXXIII, 351)... i33... J (i)...zl (2081) 
. ..Cin-*.. . Wilson (Cin'°). ..LM. . .Lv\ . .Tarrant (2899, 
2991) ... Collins (Pi-oc. Haverford Coll. Obsy. 1891) . . . 
Cogshall ( ) . . . ] 



P II74. Lalande 5683 







R.A. 2" 57"' 46= 1 












Decl. — 11° 27' \ 


" 






1890.82 


305-9 


1.22 7.7.. 


.11-3 


V 


Si 


1898.69 


298.9 


I. 21 8.0 . . 


. 12.0 


\)i 


(i 



Discovered with the 12-inch. The principal star 
has a considerable proper motion : 



Rad' 
Porter 



0.163 in (69.6 
0.201 in 178.3 



The measures are sufficient to show that this 
is a physical system, since the two stars are moving 
together. 

Li3 (xvii). . .(3 (3047). . ./3 (Ptd,. L. O. II). . .] 



1175- Lalande 5636 

R.A. 2'' 57" 49' { 
Decl. + 43° 14' \ 



1890.68 280.9 0.26 7-3--. 8.7 

Discovered with the 36-inch. 
[/3 (XVII). . ./3 (3047). . -^ {Pub. L. 0.n)...-\ 



3« /3 



P 526. P Persci (algol) 







R.A. 3" 0'" 22" 












Decl. -|- 40° 30' 


' 










A and B 








1878.81 




155-3 


59.06 Var. 


.12.7 


3« 


i8 


1891.97 


155-4 


57.48 


-13-5 


2)1 


i8 


1898.96 


155-4 


58-79 

A and C 




1)1 


/3 


1878.81 


144.8 


68'!o7 


.12.5 


yi 


;8 


1891.97 


144-3 


68.38 


.14.2 


1)1 


/? 


1898.96 


144.8 


67.19 

A and D 




in 


/? 


1879.30 




192.6 


81.91 


.10.5 


A,n 


P 


1891.97 


192-5 


81.51 


. II. 


2)1 


/8 


1898.96 


192.4 


81.78 

D and E 


.11.5 


1)1 


/3 


1878.81 



1 16.2 


// 
10.80 


.12.5 


yi 


/8 


1891.97 


115. 


11.52 


.12.5 


2 ft 


i8 


1898.96 


II8.0 


11.98 


. 12.0 


1)1 


/8 



The faint stars near the well-known variable 
Algol \\&xe noted with the t8j^-inch. No elonga- 
tion of the principal star, or any close companion, 
could be seen with the 36-inch under favorable con- 
ditions. The large star has a small proper motion, 
o"oi3 in the direction of 242?3 (Auwers). There 
is no possibility of these faint stars being other 
than optical companions. 

[^(x)...^'...^3...^ (31, 4)... /3 (/>„/;. L. O. II)...] 



P 527. W II. 1057 



R.A. 3" o- 35=^ 
Decl. — 13° 43' 



1877.83 


60.4 


0.85 


8.0.. 


. 8.5 


1)1 


/8 


1877-95 


237.6 


0.76 


7.8.. 


- 8.3 


1)1 


Cin 


1892.03 


66.0 


0.83 


8.1. . 


. 8.4 


yi 


/3 


1898.88 


65-3 


0.81 


8.2.. 


. 8.2 


3« 


Bd 



Discovered with the i8j^-inch; closely j-/ 2 356. 

[/3 (x). . .(3^ . ./3 {3114). . .i3 {Pub. L. O. 11) . . .Cin<. . .Booth 
royd ( )...] 



Discovered from iSji to i8gg by S. W. Burnham 



^ol 



P 528. W^ II. 1086 



R.A. 3*^ 2" 25= 
Decl. —4° 3' 



1877.97 197.5 1. 01 8.5. . . 8.5 2n 13 

1886.84 12.5 0.91 8.2... 8.3 m LM 

1889.02 197.3 ... 8.5... 8.6 in Lv 

1891.72 195.4 1. 00 ... i» Col 

1898.82 197.6 0.95 8.8... 8.8 3« Cg 

Discovered with the 18^ -inch. In the field with 

2358- 

IP (x) . . . /3' . . . LM . . . Lv ' . . . Collins (Froc. Haverford Coll. 
Obsy. i89l)...Cogshall ( )...] 



P 1030. W= III. 5 







R.A. 3" 


3m 12S ^ 










Decl. + 


21 


' 17' \ 






1888.83 




164.6 


o-SS 




8.4.- 


8.4 yi 


/^ 


1890.64 


168.9 


o.5± 






lOfl 


Sp 


1895.92 


165.0 


0.71 






211 


Lew 


1896.52 


161. 7 


0.48 






2/1 


Lew 


1897.89 


162.6 


0-53 






211 


Lew 


1897.93 


160.9 


0.76 






3" 


A 


I898.II 


159-9 


0.42 






in 


Lew 


1898.12 


154.2 


0.48 






in 


Bow 



Discovered with the 36-inch. The measures 
taken together do not indicate any sensible motion. 

[P (XIV). . .(3 (2875). . .p {Pub. L. 0. 11). . .Sp (in). . .Lewis 
{Mon. Not. LVI, 359) {Greenwich Obsns. 1895). • .Aitken 
(^./. 429). . .Lewis and Bowyer [Mon. Not. Lix, 400). . .] 



P 1 176. 48 CcpJiei (h) 

R.A. 3'' 5'" 9^ \ 
Decl. + 77° 17' \ 

A and B 

o // 

1890.65 277.6 1. 18 5. 7.. .12. 5 yi /3 

A and C 

o // 

1890.63 227.9 10-95 ■■■^l-l 2;/ /3 

Discovered with the 36-inch. The close pair is 
difficult. The principal star (B.A.C. 979) has a 
proper motion, according to Auwers, of 0*073 i^i 
the direction of 137^5. A measure of AB at this 
time would show at once whether this movement is 
common to both components. 

l/i (XVII)... /:) (3047).../:* (/W/. L.O. 11)... I 



P 400. Eridaiii 103 

R.A. 3^ 5™ 18^ \ 
Decl. — 4° 16' \ 

o /' 

1877-95 53-2 21.69 7-0---II-5 !■" /5 

1879.01 53.1 22.19 6. 4... 12.0 3^/ /? 

1891.96 54.1 22.74 7.0... II. 7 211 fi 

1898.71 53.7 22.61 6. 2... II. 7 2n (i 

Discovered with the 6-inch. This is a naked- 
eye star, Heis 6 m (= Lalande 5925 = W iii. 50). 

[/3 (vii).../3 (2103)... /3'... ^3... /3 (3ii4).../3 {Pub. L. O. 
II)...] 





p 


53 


0. Arietis 


161 










R. 


A. 3'' 


7'" 18=' 


\ 










D 


.cl. + 


22" 30' 












B ar 


id C 








1879.21 


195-8 




1-77 


9-7- 


..10.4 


V 


ft 


1892.00 


194.2 




1.70 


9-7 


. . lO.I 


y 


ft 


1896.85 






1.68 






in 


Bow 


1896.93 


197.0 




1.84 






i>i 


Lew 


1898. 1 1 


193-3 




2.23 






\n 


Lew 


1898.75 


194.0 




1.66 


8.7 


. . 9.2 


2n 


ft 



21 


41-5 


48.88 


7.0.. . 


4// 


ft 


00 


40.9 


48.40 


7.8... 


2)1 


ft 


75 


40.3 


48.08 


7.1.. . 


2)1 


ft 



A and B (= 2 366 r£j.) 

1879 

1892. 

1898. 

The distant companion of this rejected pair of 5 
was found to be double with the 18^ -inch. Thus 
far the measures indicate no change. The above 
are all the measures of AB. Lalande 5961. 

[iS (x).../3'...;8(3ii4)...;3 (/'«/;. /,. O. ll) ... Lewis and Bow- 
yer {Mon. Not. LIX, 400). . .] 



P 529. Lalande 6006 

R.A. 3'' S"" 9* I 
Decl. — 9° r \ 



1877. 89 220.0 2.40 

1S91.86 222.4 3-II 



8.0. . . 12.0 2« ft 
8.0. . . I 2.2 2/1 ft 



1898.76 222.4 2.94 8. 5... 11. 5 I// ft 

1S98.82 220.7 3-50 7-5- --13-7 2;/ Cg 

Discovered with the iS'i-inch. 

1,3 (x).../3'...i3 (^114) .../3 {Pub. L. O. 11) ... Cogshall 
I )..-l 



General Catalogue of Double Stars 



P 84. W III. 147 



R.A. 



5^ \ 



Decl. — 6° 22' \ 



1875-85 


10.3 


0.44 


7.2.. 


• 7-4 


5-" 


J 


1877.83 


25-7 




6.0. . 


. 8.0 


211 


Cin 


1879.39 


32-4 


0.72 


6.4.. 


■ 7-5 


S^ 


/? 


1879.69 


27.9 


0.56 


7.2.. 


. 8.5 


111 


/3 


1879,78 


30.6 


0.73 


6.0.. 


. 8.0 


in 


Cin 


1886.71 


27.1 


0.76 


6.2.. 


. 8.0 


3« 


LM 


1888.52 


22.4 


0.51 


7.0.. 


. 8.0 


4;/ 


T 


1888.94 


21.5 


0.58 


6.4.. 


• 7-7 


2/1 


Lv 


1889.05 


21.8 


0-59 






211 


T 


1889.52 


26.0 


0.66 






5'' 


Sp 


1890.89 


27-3 


0-73 


6.8. . 


• 7-3 


A>t 


/3 


1897.05 


21.4 


0.87 


7.0.. 


. 8.0 


\!l 


A 


1898.02 


17.8 


0-57 


6.8. . 


. 8.3 


III 


Bry 



Discovered with the 6-inch. This is a naked-eye 
star in Cetus; x\rgelander and Heis, 6m. While the 
measures are somewhat discordant for so easy a 
pair, they do not point to any sensible change. 

[ (11)... /3 {Mon. Not. XXXIII, 437K . .^=. . .(33. . ./3 (3048) 
...(3 [Pub. L. O. i\]...A (i)...J (2o8i)...Cin-*...Cin« 
... [.M. .. Lv'. .. Tarrant (2991) . . . Glasenapp (11)... Sp 
III). . .Aitken (3465). . .Bryant [Mon. Not. Lix, 400). . .] 



1039. Lalande 6084 



R.A. 3'' II'" 0= 
Decl. + 7° 13' 



1889.00 209.4 1.87 7.0... 13 3« ^ 

1898.92 208.2 2.43 7.0... 13 \ii A 

Discovered with the 36-inch. 
[/3 (XV). . .(3 (2929). . ./3 (Pub. L. O. 11). . .Aitken ( ). . .] 

P I177. D.M. (— 1=) 473 



R.A. 3'' 12™ 45S 
Decl. — 1° 28' 



1890.82 24.7 0.38 9.1... 9.1 yi p 

Discovered with the 36-inch while examining 95 
Ceti(= A.C. 2). This new pair is 3l^7 /and 5 '42" 
s of that star. The magnitude in D.M. is 9.3. 

l^(xvn).../3 (3047) •••^ (/'«'''• -^- O. II)...] 



P742. 

R.A. 3'' 17"" 
Decl. -f 48° 50' 

This star was suspected to be a very close pair 
with the 6-inch on Mt. Hamilton in 1879. I made 
a careful search with the 36-inch in 189 1 without 
finding any close pair in or near this place. The 
suspected elongation was probably not real. 
r/3 (XI). . ./3^ . ./3 (3114). . .i3 [Pub. L. C. II). . .] 

P 1 178. Tauri 7 



R.A. 3" i; 



'-n 



Decl. + 4" 27' 

o // 

1890.89 347.8 0.99 6. 6... 12. 3 yi /3 

Discovered with the 36-inch. The magnitude in 
D.M. is 7.7, and in Boss 7.3, while Gould gives 6.6. 
It is Lalande 6267. 
[/3(xvii)...;8(3047).../3(/W.. Z. O. 11)...] 

P 531- Lalande 6275 



Decl. - 8' 13' \ 



1877.92 
1891.75 
1898.74 



60.1 
53-6 
57-4 



2.43 
2.94 
2.88 



6.7. . . 12.3 

6.5.. .11.7 
6.7 ... 1 1.2 



211 



Discovered with the 185^ -inch. A naked-eye 
star in Eridanus ; Heis 6-7 m, S.D. 6.5 m. It has 
a considerable proper motion, which obviously be- 
longs to both opponents: 



St 


umpe 


0.250 in I 


80.0 




Porter 


0.225 iri I 


89-5 




[/3(x)...^' 


...^(31 
P 


I4)...;8(/'«/^ Z. 0. II)...] 

12. Lalande 6313 

R.A. -^ 18"' 47= 
Decl. — 14° 25' 






1875.40 




271.8 


2.35 7-5---10-4 


^11 


J 


1877.83 


273-3 


2.36 6.9 . . . 9.0 


V 


Cin 


1886.88 


2748 


2.45 7.1. . . 9.1 


4« 


LM 


1888.53 


272.6 


2.31 7.2.. . 9.5 


211 


Lv 


1898.85 


272.4 


2.14 7.3.. . 9.7 


yi 


Bd 



Discovered with the 6-inch. Without change. 

[(3 (i)...(3 [Man. Not. xxxiil, 351). . .Cin-*. . . LM . . .Lv'. . , 
Boothroyd ( ). . .] 



Discovered from iSji to i8gg by S. W. Burnham 



39 



p 1179. 34 Persei 







R.A. 1 20'" 47^ ; 










Decl. +49° 6' i 






1890.64 


163.4 


0.68 5.9. . 


.11.6 4;/ 


/? 


1898.73 


164.5 


0.70 


yt 


Hu 



Discovered with the 36-inch. A difficult pair. 
The proper motion of this star is 0*034 in the 
direction of i75?o (Auwers) The measures 
show that this is common to both stars. 



[)3 (xvil). . ./3 (3047). . ./3 {Pub. L. O. 11). . .Hussey ( 



p 878. 66 Arietis 

R.A. f 21™ 28^ \^ 
Decl. + 22° 23' \ 



•] 



1881.06 


78.0 


I. 10 


6.0. . 


. 1 2.2 


211 


/3 


1890.89 


76.1 


1.29 


5.8. 


•13-7 


3« 


/3 


1897.88 


74.1 


1-05 






\n 


Lew 



Discovered with the 18^ -inch. A more diffi- 
cult pair than the distance and magnitude would 
indicate. This star has a considerable proper 
motion : 



Auwers 
Porter 



0.120 in 185.3 
0.115 in 186.9 



It is apparent from the measures that this is a 
physical pair. If the small star was fixed in space, 
the proper motion of A in the interval would de- 
crease the position-angle 36°, and add o!'7 to the 
distance. 



[^ (xni). . .^3. . ./3 (3048). . .^ [Pub. L. O. II). 
Not. Lix, 400). . .] 



P 879. B.A.C. 1076 



.Lewis (Mon. 



R.A. 3^ : 
Decl. + ic° 58 



3M 
8' S 



1878.98 71. 1 
1898.72 70.4 
1898.76 71.8 



24.65 
24.50 
24.70 



6. 5... 12. 5 yi (3 
6.5 ... 1 1.2 2« /3 
6.5 ... 12.2 2« A 



A distant attendant noted with the iSj4-inch. 
Lalande 6400. 

[/3(xill).. .j3\..Aitken ( ).. .J 



P I180. Lalande 6417 



R.A. 3'' 22"" 235 
Decl. — 4' 59' 







A and B 








1890.82 




24.8 


0.44 8.3. 
A and C 


■ 9-3 


3« 


13 


1890.82 




117.9 


7-13 


.11.5 


3« 


/? 


1899.09 


119.4 


7.07 


.10.5 


2« 


/? 



Discovered with the 36-inch. 
[/3 (xvii). . .^ (3048). . ./3 (Pub. L. O. II) 





p 


787« Lalande 6473 










R.A. 3'^ 25 


^ 49' [ 










Decl. + 48 


M3't 






1881.69 




228.5 


2.05 


8.0 . . . 12.0 


yi 


/? 


1885.96 


227.3 


2-35 




\n 


H2 


1888.59 


233-1 


2.02 


7.9. ..12.4 


3« 


Com 


1898.70 


245.6 


2-39 




\n 


Hu 


1899.13 


243-3 


2.40 


8.0. .. 1 1.5 


\n 


^ 



Discovered with the 151^ -inch at the Washburn 
Observatory. There seems to be some change in 
the angle. 

Hussey measures a third star, i75?8: i2.'7o 
(1898.70) \n. I could not see this on one night 
with the 40-inch, but measured 1 1 m star in nearlv 
the same direction, 175T6 : 36.''7S (1899.13) \n. 

[i3 (XII). . ./3-t. ..Conistock (Pub. Washburn Obsy. vi)...H2 



. Hussey ( 



■] 



P 788. D.^I. (42^) 786 

R.A. 3" 27"' 9^ \ 
Decl. + 42' II ' ^ 



iS8i.6g 306.2 
1888.06 302.2 



A and B 

2.78 8.3... 10. 5 4// /J 
2.66 8. 5... 10. 2 3« Com 

A and C 



8SI.69 


82.2 


34-44 


. . . 8.8 


4" 


fi 


887.99 


82.4 


34.00 


. . . S.S 


211 


Com 



Discovered with the i5i;^-inch at the Washburn 
Observatory. 
[/3 (xil). . ./3<. . .Comstock (Pub. Washinirn Ohsy. vi). . .J 



40 



General Catalogue of Double Stars 



P 532. Lalande6585 

R.A. 3^ 27"" 25= \ 
Decl. — 10° 27' \ 



1877.29 


266.7 


3-05 


7-7- 


.12.5 


3« 


)8 


1891.86 


271.2 


305 


8.1. 


.11.7 


2)1 


/? 


1898.89 


271.4 


2.99 


8.5. 


. 14.0 


2« 


Cg 



Discovered with the i8j4-inch. There is an 8 m 
star 80" distant in the direction of 310°. 



[^(x).../3-. 
shall ( 



.iS^../33. 



.i3(3ii4)...(3(/'«/.. Z. O. II)... Cog- 







P 


533. ] 


B.A.C. no 












R.A. 3'' 


28" 9^ \ 












Decl. + 


31' 17' S 








1878.67 


1 49° 3 


0-43 


7.0. . . 


7.0 


\n 


i3 


1878.91 


66 


I 


0.42 


6.8. 




7.0 


\n 


/8 


1883.12 


59 


8 


0.25 


7 


2 




S'l 


En 


1886.15 


47 


4 


0-53 








2/1 


HS 


1890.61 


50 


7 


0.5 + 








S" 


Sp 


1891.69 


52 


2 


0.51 


8.0. 




8.0 


VI 


(i 


1896. II 


50 


3 


0.56 








111 


Sp 


1898.12 


49 


7 


0.51 








211 


Bow 


1897.99 


50 


2 


0.60 








III 


Hu 


1808.41 


49 


I 


0-55 


8.5. 




8.5 


211 


L 


1898.82 


52 


4 


0.64 








yi 


Hu 


1898.97 


53 





0.51 








111 


Bry 



P 308. W III. 564 



Discovered with the i8;^-inch. There is evi- 
dently an error in reading my first angle. There 
may be some motion in angle. This star has an 
annual movement of ofo3i in the direction of 
i96°6, and this must belong to both components. 

[iS (x). . ./3'. . ./3 (3114). . .(3 (/'tt^ L. O. 11) . . . Engelmann 
(2678)... HS ( )...Sp (ili)...Hussey [A.J. 427)- ■■ 
Lewis and Bowyer ( Mon. Not. Lix, 400 ) . . . Hussey 
( )••■] 



P 1040. Lalande 6591 

R.A. 3'" 28'" 49= \ 
Decl. -f 29° 35' ^ 

1888.91 337^0 3.54 8.0... 1 1. 7 yi /3 
1898.73 338.0 3.56 8. 3... 12.0 in (3 

Discovered with the 36-inch. The magnitude in 
D.M. is 7.4. 
f(8(xV)...i3(2929).../3 {/'ui. L. O. 11)...] 







R.A. 3" 


32"" 4= \ 
8° 2' \ 












Decl. - 








1876.02 


332-9 


11 
1.65 


9 -• 


10 


yi 


HI 


1876.84 


329-9 


1.50 


8.7.. 


9-7 


3« 


J 


1877.87 


329-5 


1.80 


8.2. . 


9.0 


III 


Cin 


1886.67 


331-7 


1.78 


8.2.. 


9.4 


y 


LM 


1888.05 


331-8 


1.80 


9 - ■ 


10 


211 


HI 


1898.86 


330-8 


1.88 


8.7.. 


10. 1 


yi 


Cg 



Discovered with the 6-inch. Probably fixed 
This is Lalande 6709. 

[/3 (vi)...)3 (2062)...^ (i)...Cin''...LM...Hall (l, 11)... 
Cogshall ( )...] 



P 1231. D.M. (65') 359 

R.A. 3" 32"' 45^ \ 
Decl. + 65° 36' ^' 

A and B 

o // 

1891.84 15. 1 2.64 8. 2... 12. 5 5« ^ 

1898.89 13. 1 2.61 8.0... 13.0 \n A 

A and C 

1891.84 252% 83.75 ... 8.3 5« /? 

1898.89 252.6 84.06 ... 8.0 \n A 

Discovered with the 1 2-inch. C is D.M. (65°) 
358- 

[/3 (xviii).../3 (3 II 3)... /?(/'«/'. L. O. ii)...Aitken ( ).. .] 



P 1 181. Lalande 6685 



R.A. t 32"" 54' 
Decl. + 45° 30' 



1890.66 270.5 0.35 8.1... 8.3 yi ft 

1898.70 88.9 0.40 ... I'^^Hu 

Discovered with the 36-inch. Near 02 59. 
[/3(xvil).../3 13047)... /3 {Pub. L. O. ll)...llussey { ).. .] 



Discovered from ^8yi to i8gg by S. W. Burnham 



41 



54- L 


alande 6741 






• A. 3'> 


33" i^ } 






eel. — 


8° 54' f 






II 
2.40 


7.5.. .11.1 


4« 


8 


2.58 


8.0. .. 1 1.7 


2>l 


i8 


2.66 


8.0. . . 12.5 


2 71 


Bd 



1879.24 195.3 

1891.86 193. 1 

1898.87 194.1 

Discovered with the 18^ -inch. No material 
change. 

[^ (x). . .13'.. .§-i. . .(3 {3114). . .i3 (Fiefi. L. O. 11). . .Boothroyd 
( )...] 

P 1 182. Lalande 6759 



R.A. 3'' 35'" 30^ 
Decl. + 48° 8' 







A and B 








1890.62 




261.2 


4.37 6.4. 


.14.2 


3« 


/3 


1898.71 


260.4 


4-45 
A and C 




m 


Hu 


1890.62 




242.6 


19.27 


■I3-5 


yi 


/8 


1898.71 


242.8 


18.76 




in 


Hu 



Discovered with the 36-inch. Batterman (AN. 
3507) gives the proper motion of this star, of 02 8 
in the direction of 186? i. 

]i3 (.wii). . ./3 (3047). . ./3 [Picb. L. O. 11). . .Hussey ( ). . .] 



P 535- 0. 38 Persei 



\<..\. 3i' 36-" 47^ 

Decl. + 31° 54' 



1877.84 60.5 0.96 ... I« J 

1878.25 56.8 0.83 4.0... 8.5 4;/ /3 

1879.69 53.2 0.67 4.0... 7.0 I// fi 

1888.42 51. 1 0.97 ... 5// H2 

1888.71 59.2 1.09 ... 8.7 yi (3 

1890.10 56.1 1. 01 ... 3« T 

1890.61 49.7 0.87 ... 5« Sp 

1891.16 50.3 0.99 ... m Big 

1894.36 48.2 0.97 ... 7« H2 

Discovered with the 181^ -inch. The measures 
are not very accordant, but the motion, if any, is 
very slow. Auwers gives the annual movement of 
this star, 0^023 in the direction of 243?8, so that 
with the small star stationary, the distance between 
the components, would increase by this amount 



annually, and at this time (1898) the distance should 
be about if 5. It is obvious from the measures 
that the two stars are moving together. 

\P {xl.../3^../3^..^ (2875)...^ {Piii. L. O. II)... Tarrant 
(3186). . .Bigourdan [^Bul. Asi. xvni)...Sp (iii)...H2 



P 880. D.M. (31 ) 634 

R.A. 3'- 37'" 3^^ ) 
Decl. + 3i'= 47' f 







A ar 


id B 








1880.90 


353-7 


II 
0-45 


8.7.. 


. 8.9 


2n 


/? 


1891.69 


354-7 


0.51 


8.4.. 


. 8.4 


yi 


/3 


1898.12 


349-2 


0.40 






i?i 


Bow 


1898.76 


354-9 


0-55 


8-5-- 


- 8.5 


\n 


/3 


1898.97 


346.9 


0.42 






\n 


L 



AB and C (= 2 439) 



1830.99 


38.1 


23.20 


8.0. 


. . 9.2 


2n 2 


1866.85 


38-3 


23-39 


7.8. 


. . 9.0 


yi J 


1879.82 


38-0 


23.70 


8.0. 


. . 9.1 


211 ji 


1891.69 


38.3 


23-42 




. . 9.2 


in [i 


1898.82 


38.2 


23.46 


8-5- 


.. 8.9 


2>! /3 


The duplicity 


of the pri 


ncipa 


star of 


2 439 



discovered with the 18^-inch. It is near the last 
preceding pair, 38 Persei. There is no change in 
the distant star. A few of the measures are given. 

[/3(xni). . .(33. . ./3(3ii4). . .^{Pub.L. 0. 11). . .Madler (ZJor/a/ 
ObsHS. XIII, XV) {Fixstern-Systeme I ) ... J (a) . . . Cin"*. . . 
Lewis and Bowyer {Mon. Not. li.x, 400). . .] 



P IO41. W= III. 793, 798 



1888.91 
1898.71 
1898.76 



347-8 
338-8 
340.4 



R.A. 3' 
Decl. + 27° 3 

B and C 

;/ 

7-87 

10.14 

9.84 



19=^ } 



12.8 



12.4 



3'' /^ 
2n 13 

2H -A. 



A and B (= 02 (app.) 38) 



1875.41 


38-3 


122.63 


6.2. . 


. 6.3 


3« 


J 


IS88.9I 


39-9 


123-57 


7.0.. 


- 7-0 


V> 


/8 


1890.73 


40.0 


123.63 


6.5.. 


. 6.6 


4" 


Fr 


IS98.7I 


40.9 


124-37 






2U 


/3 


I89S.72 


41.0 


124.48 


7.5. . 


. 8.0 


\>l 


A 



I'he minute companion to the preceding star of 
this wide pair was discovered with the 36-inch. 



42 



General Catalogue of Double Stars 



The proper motion of the bright stars is given by 
Rechenberg (A.N. 3482) as follows: 

a o 

A - - 0.065 'n 201.8 

B - - 0.331 in 123.3 

From the position of the faint star given by 
the measures of 1888, with the above proper mo- 
tion, the place of C in 1898.7 should be 335^2 : 
iof44. It is evident from the latest measures that 
this star is fixed in space, and that the two form 
only an optical pair. All the measures of A and 
B are given here. 

[/3 (xv)...i3 (2929). ..(3 [PuIkL. O. ii). . .A (i). . .Franz ^3464) 
...Aitken( )...] 

P I183. B.A.C. 1 142 



R.A. t 37" 36' 
Decl. + 45° 18' 



1890.65 139.9 6.48 6. 3... 14. 7 yi (3 

1898.71 137.4 6.71 ... m Hu 

Discovered with the 36-inch. A naked-eye star 
in Petseus. 
[i3{xvii).../3 (3047)... /3 {Puh. L. O. ll)...Hussey ( )...] 



P 536. W^ III. 846 



R.A. 3'' 39"' 8^ 
Decl. -f 23° 49' 

A and B 



1878.69 
1890.81 
1891.74 
1892.01 
1893.71 



336.4 
322.4 

317-1 



0.44 8.3. 

0.19 8.0. 

0.19 8.5. 

Single with 36- 



■ 9-3 
. 8.5 
. 8.9 
nch 



3;; 

3« 



Single with 36-inch 
C and D 



/8 

Bar 
Bar 



1878.67 


I 1.2 


18.17 


... 12 


i« 


/? 


1891.74 


9-4 


18.3.5 


.. .-13 


3« 


13 


1894.09 


10. 


17.98 


... 12 


2;/ 


W 


1898.89 


8.2 


18.02 
AB and C (: 


.. .13 

= S437) 


i« 


A 


1823.99 


299.7 


34-57 


9 ... 10 


2« 


S 


1878.70 


302.4 


36.72 


8.0.. . 


2 ft 


13 


1891.74 


303-1 


36.92 


... 8.4 


3'' 


13' 


1894.05 


303-1 


36.84 


8.3... 8.0 


3« 


W 


1898.89 


303-3 


37-47 


8.0... 8.0 


i« 


A 



The wide pair, first observed by South, is in the 
Pleiades, i'" 15^/ Alcyone, and 4' 52' ;/. The close 
pair and the faint star D were discovered with the 
185^-inch. It is a physical system, and it is prob- 
able that the period will not be a long one. 

There has been no change in the position of C, 
and this and the faint attendant form only a per- 
spective group. C is W^ III. 845. All the meas- 
ures of this star are given above. 

[/3 (x)...(3'...(3 (3048,3ii4)...j3 (^Pub. L. O. 11)... Barnard 
(^./. 447). . .Wilson ( )...Aitken( )...] 



P 537- D.M. (24") 563 



R.A. 3" 39-" 54^^ 
Decl. -4- 24° 28' 



1877.84 
1877.91 
1890.88 



194.4 
185.9 
184.8 



0.37 
0.60 
0.48 



8.2. 

8.5. 
8.4. 



. 10. o 

.10.5 
. 9-8 



2.71 

zn 
VI 



Discovered with the 18^ -inch. In the Pleiades. 
Apparently unchanged. 
[/3 (X). . ./3V . .^ (3048). . .§ (Pub. L. a II). . . J (I). . .] 





pi 


003. 

R.A. t 
Decl. — 


A 

40 
28 


rg-S. 

1^ 255 
° 15' 


2518 

( 






881.54 




20.5 


2.69 




8.1. 


. 12.0 


2« 


13 


892.01 


30-4 


2.48 




8.2. 


.11.3 


V 


13 


898.97 


34-4 


2.76 




8.0. 


.13.2 


2« 


Bd 



Discovered with the 12-inch. There may be 
some change in the angle. Boothroyd _suspected 
the principal star to be a close pair, 15° : of4. 
[j3 (xiii). . ./33. . .;8 (3ii4).../3 {Pub. L. O. 11) .. .Boothroyd 
( )...] 





p 


538. Yarnall 16 


34 










R.A. 3" 


40- 51= ) 












Decl. + 


23° 44' S 








1877-73 


i38°o 


// 
2.27 


10 . . 


. II 


in 


13 


1898.89 


130.0 


1.94 


9.1. . 


. 10.4 


2« 


P 


1898.92 


128.6 


1-59 


10 . . 


. 1 1 


m 


A 



A pair of faint stars in the Pleiades, 3o^4/ and 
20 ! 5 .f of 7; Tauri (Alcyone). Not in^^D.M. 

[/3(x).../3'...Aitken( )...] 



Discovered from ^Sji to i8gg by S. W. Burnham 



43 



P I184. D.M. (21°) 526 



1890.83 

1893 
1896 



1897 
1897 
1897 
1808 



272.2 

07 269.6 

08 267.8 
273.8 
266.3 
264.7 
275.2 



86 



R.A. 3^ 41" 14= 
Decl. + 22' o' 

o'.'62 8, 

0-75 
o.5± 

0-59 
0-73 
0.48 
0.62 



8.3 3« P 

m Sp 

4« Sp 

\>i Lew 

3« A 

2fi Bow 

in Bow 



Discovered with the 36-inch. Very little, if any, 
change. 

[(3 (xvii). . ./3 (3047). . .|S {Pub. L. O. II). . .Sp (hi). . .Aitken 
(A.J. 429). . .Lewis and Bowyer (Mon. Not. LIX, 400). . . ] 



P II05. D.M. (23'') 554 



R.A. 3'' 41™ 26^ 
Decl. + 23° 49' 



1889.62 57.7 0.33 9. 3... 10.3 yi /3 

Difficult pair in the Pleiades, i" 4^/ and 4 ('3 n 
of T] Tauri (Alcyone). Discovered with the 36- 
inch. 

[/3 (xvi). . .^ (2956). . .^{Pub. L. 0. II). . .] 



P 1 106, Pleiades 

R.A. 3'' 42" 58^ ) 
Decl. + 23' 51' \ 

O II 

1889.59 51-7 0-40 II. 5... II. 5 in 13 

Another difficult pair in the Pleiades, discovered 
with the 36-inch. It is too faint for the D.M. The 
place is taken from the Paris map of this group. It 
is 55'/ and 4.'6 n of 28 7a/^/7 (Pleione). 

[/3 (xvi)...^ (2956)... /3 (/>«/.. Z. O. II)...] 

P 539' W' III. 809 

R.A. 3" 43- 13- \_ 
Decl. — 1° 53' 'i 

o // 

1877.88 271.2 2.79 9 ...II 2)1 (S 

1891.86 271.6 2.69 8. 3... 10. 6 2;/ /3 

Discovered with the 183/2 -inch. Near /3 401. 
Unchanged. 

[^ (x). . .(3'. . .,3 (3114) . . .^ {Pub. L. 0.n)...\ 



P 401. Lalande 7109 
R.A. 3*' 44™ lo'^ ) 



Decl. 



1877.20 254.5 

1878.05 255.8 

1879.77 255.8 

1891.86 256.0 



4-65 
4-37 
4.00 
4.64 



[" 53' S 

6. 8... 10. 8 3« A 

6.5 . . . 10. o \n Cin 

6.0 . . . 10. o m Cin 

6.7 ... II. I 211 (3 



Discovered with the 6-inch. Evidently fixed. 

[/3 (vii).../3 (2103,3114)... (3 {Pub. L. O. II)... zl (i)...CinS 
...Cin«...] 



P 743- D.M. (51=) 802 



R.A. 3'^ 46"' 36=^ 
Decl. + 51° 54' 



1880.06 250.2 
1891.77 246.1 



0.82 8.5 . . . 9.0 i« ft 

0.74 8.2. . . 9.0 yi /3 



Discovered with the 6-inch in 1879 O" ^^'^- Ham- 
ilton. 

[/3(xi)...^^..^...^(3ii4).-.^(^«^-^. 0.1,11)...] 



P 1276. Lalande 7190 

R.A. 3^47" 4 
Decl. — 2° 12 

B and C 

O II 

1898.73 81. 1 0.96 8.7... 9.0 yi ft 

A and BC (= S 468 = H 5458) 



1823+ 


io5±: 


25± 


8 . 


- 9 


i« 


H 


1831.40 


97-7 


20.06 


8.7. 


- 9-7 


3'' 


2 


1844.13 


98.5 


19-37 






m 


Ma 


1868.57 


98.0 


20.03 


8.7. 


- 9-7 


4" 


J 


1879.66 


97.1 


20.80 


8.5. 


• 9-5 


III 


Cin 


1892.92 


97-7 


19-35 


8.1. 


. 9.0 


2n 


G 


1898.73 


97-7 


20.13 


8.2. 




3" 


/3 



Discovered with the 40- inch. It is not a difficult 
pair, and should have been seen before with the 
present distance. The Struve components are 
evidently fixed. The foregoing are all the meas- 
ures. A and B are respectively S.D. {2') 745 and 
746. 



[rSladler {Fixs(ern-SysUme I) 
(iiL..] 



. . J (11) . . . Cin*. . .Glasenapp 



44 



General Catalogue of Double Stars 



P 540. D.M. (31°) 669 







R.A. 3'' 48™ 21^ 












Decl. + 31° 48' 












A and B 








1878.65 




326.0 


1.22 8.1 . . 


.11.5 


211 


i8 


1891.69 


324-7 


1.28 8.5.. 
A and C 


. II. 8 


i" 


^ 


1878.70 




57-2 


57-14 


. 8.2 


211 


13 


1891.69 


57-3 


57.11 


. 8.5 


3" 


y8 



Discovered with the 18^-inch. 
[|3(x)...(3'...j3(3ii4).../3(/'«^. Z O. ll)...] 



1875.66 216.9 
1883.53 220.2 
I89I.8I 217.2 

Discovered with the 6-inch. 
dence of motion. 



85. w 


= III. 1031 






R.A. 3" 


48" 34^ I 






Decl. -f 


17° 17' i 






II 
4.14 


7.9 ... 10. 1 


4;/ 


J 


4.48 


7.8. . . 10. 


6n 


En 


4.00 


8.2. . .10.3 


3« 


/? 



There is no evi- 



[/3 (11). . .(3 {Mon. Not. xx.xill, 437). . .^ (3114). . .^3 {Pub. Z- 
O. \\)...A (l)...Engelmann {2678)...] 





p 


263. W = 


III. 1028 










R.A. 3" 48 


-50= \ 










Decl. + 32 


'50'i 






1875-93 




70.6 


II 
0.67 


8.2... 8.5 


6;/ 


J 


1882.09 


71.9 






111 


Big 


1882.95 


76.1 


0.80 


8.0... 8.3 


5« 


En 


1898.76 


75-3 


0.87 


8.0. . . 8.5 


211 


A 



Discovered with the 9.4-inch at the Dartmouth 
College Observatory. 

[j3 (v). . .^{Mon.Nol. xxxv, 31) . . . /I (l) . . .Engelmann (2678) 
...Bigourdan [Paris Obsns., 1883). . . Aitken ( )...] 





p 


541. 


W 


III. 923 










R.A. 3'' 


48 


° 37 ' s 










Decl. — 


I 











// 








• 


1877-95 


259.8 


1-34 




8.5. ..10.5 


\n 


fi 


1879. II 


255-2 






8.0. . . 10.5 


\n 


Cin 


1884.83 


261.0 


1. 41 




9.0. . . I I.O 


m 


W 


1898.72 


260.2 


1-33 




8.2. . . 10.5 


2« 


/8 



Discovered with the i8j^-inch. Without change. 
[^ (x). . ./3'. . .CinS. . .Wilson (Cin'°) . . . ] 



P 542. S.D. (7") 707 



R.A. 3'' 


50"' 21= ) 








Decl. — 


r 18' s 








// 
1.65 


9 - - 


. 10 


m 


/3 


1.56 


8.2. . 


. 9.0 


271 


LM 


1.52 


8.4.. 


. 8.9 


3« 


/? 


1-50 


8.3. 


. 10.2 


in 


Cg 



1877.86 198.4 

1886.78 193. 1 

1892.01 192.9 

1898.88 192.5 



Discovered with the 18^ -inch. Apparently 
fixed. 

[/3 (x).../3'... (3(3114)... (3 (/'^<^. Z. 0. ii)...LM...Cogshall 
( )■•.] 



P 543. W' III. 974 

R.A. 3'' 51™ 25s ^ 
Decl. — 1° 30' ^ 



1877.82 32.0 II. 15 

1891.75 28.4 II. 19 

1896.08 29.9 11.88 

1898.70 28.8 11.02 

1898.86 26.8 11.00 



Discovered with the i8i4-inch. 
some proper motion : 



8.5... 


10.5 


\7l 


y8 


8.0. . . 


10.8 


in 


^ 






m 


Sp 


8.1. .. 


10.7 


2)1 


/8 


7.7. . . 


1 1.0 


yi 


Cg 


^-inch 


. Th 


is star has 


o!'2 83 



in 228.3 




0.284 


in 224.1 




0.279 


in 2 


32-7 





Stumpe 
Seeliger 
Porter 



It will be seen from the measures that this move- 
ment belongs to both stars. If the companion was 
stationary, the distance at the last date would be 
about 5" more than at the time of discovery. 

[/3 (X). . .(3V . ./3 (3114). . ./3 [Pub. L. O. II). . .Sp (ni). . .Cog- 
shall ( )...] 



1888.92 93.8 

1893-I1 93-2 

1898.72 93.5 

1898.80 94.1 



042. Lalande 


lYi 


2 






R.A. 3" 


52" 36^ 


\ 








Decl. — 


3° 0' 


s 








A an 


d BC 










54-93 


7-5- 






3'-- 


/8 


55-62 


7-5- 




9-4 


2« 


Gl 


55-28 


7-3- 






211 


/? 


55-88 


7.0. 






Ml 


A 



Discovered from ^Sji to i8gg by S. W. Burnham 



45 



B and C 

o // 

1888.92 35.1 1.09 8.7. . . 9.5 yi /3 

1898.73 38.1 1. 01 8.8...10.0 3« /3 

1898.80 35.3 0.97 9. 5... 10. 5 in A 

Discovered with the 36 inch. So far there ap- 
pears to be no change in the close pair. 

[j3 (xv). . ./3 (2929). . ./3 (Pud. L. 0. II). . .Glasenapp (11) . . . 
Aitken ( ). . .] 



p 544. 36 Tauri 



R.A. 3'' 57"> 11= 
Decl. + 23° 46' 



1877.86 257.9 25.06 6.0... 12. 5 \n ^ 
1892.04 256.6 26.10 5. 5... 13. 2 yi (3 
1897.84 256.7 25.17 ... 3« /^ 

Discovered with the i8j^-inch. The proper 
motion of this star is small, o''oi2 in the direction 

of 2I4?5 (AUWERS). 
[^(x).../3'.../3(3ii4).../3(/'.v(^. Z. O. II)...] 



P 1004. Lacaille 1326 

27= ) 
19° \ 



■R.A. 3^ 57m 27s 
Decl. — 34° 49- 



A and B 

1881.85 154. 1 1.79 7.5. . . 7.9 3« /3 

1895.08 144.8 1.54 7.0. . . 8.5 3« Sel 

1897.72 144.2 1.77 7.2... 8.3 in See 

1898.84 143.4 1-97 7.0... 7.7 2« A 







A and C 








1881.86 




131-2 


62^98 


. . 1 1.2 


2« 


/8 


1898.84 


134.6 


60.04 


. .11.7 


2« 


A 



Discovered with the 12-inch on Mt. Hamilton in 
1 88 1. There appears to be some change in the 
angle of AB. The change in C indicates a proper 
motion of o!'27 in the direction of 8i?7. 

[(3 (\!ii) . . .j33...Sellors (3369) ... See (3495) ... Aitken 
( )•••] 

P 1277. D.M. (27°) 630 

R.A. 3" 5S"' IS'- I 
Decl. + 28° 4' \ 

A and B 

O II 

1898.S4 259.0 1.34 S.O...I2.2 2/1 /3 



A and C 
57 69.7 54.53 



9.2 3« (3 



Discovered with the 40-inch in looking for the 
next pair, jS 1005. 



P 1005. D.M. (28-) 618 



R.A. 2,^ 59"" 20= 
Decl. -|- 28° 37' 



1881.86 62.7 3.35 8. 5... II. 7 2;/ /3 

1891.89 61.7 2.47 8. 4... 12.0 T,n j8 

1898.74 62.1 2.77 ... 3;/ Hu 

1898.84 60.8 2.56 ... 2;i /3 

Discovered with the 12-inch at Mt. Hamilton in 
1881. 

[/3 (xiii)...)33.../3 (3ii4)...(3 (Pui. L. O. ii)...Hussey 
( )...] 



P 545. Lalande 7556 



R.A. 3^ 59" 245 
Decl. + 37' 42' 



1878.24 310.0 1.02 8.0... II. 5 4;/ /3 

1890.79 310. 1 1.09 8.0... 10. 6 4;/ ji 

1891.78 309.3 1.05 8.3...11.0 yt fS 

1898.82 303.6 1.04 8.I...IO.O 2/1 /3 

Discovered with the 18^4 -inch. There seems to 
be no material change. This star is in the field 
with 02 531. It has been used for the determina- 
tion of the parallax of OS 531 (= P HI. 242) by 
Ball (Pu/>. Ditnsink Obsy., Part V). The last 
named star has a proper motion of o.'26o in the 
direction of i46?5 (Porter). The following meas- 
ures connect the two pairs : 

/3 545 and 02 531 

O II 

1851.16 25.4 239.76 2ti 05 

1854.04 25.6 239.65 yi 02 

1858.20 25.8 239.03 2« 02 

1879.60 27.2 237.32 30// Ball 

1890.78 28.1 235.51 2fl /3 

1S9S.82 28.8 234.95 2n /3 

[/3 (X). . ./S-. . ./3 (3048,3114). . ./3 (Pu/'. L. O. II). . .02 ^Poul- 
kowa Obsns. x, p. 61)...] 



46 



General Catalogue of Do^ible Stars 



P 309. Lalande 7655 



R.A. 4'' I" 22= 
Decl. + 19° 25' 



1875-65 
1876.03 
iSgo.oo 
1899.09 



279.1 
278.7 
276.8 
277.1 



5.66 
5-94 
5-94 
5-59 



8.0. 
8 . 



II. 3 
II 



3« 

2« 



8.0. . . 10.5 

Discovered with the 3-inch. Probably fixed. 

[/3 (VI)... i3 (2062)... zl (i)...Hall (I, 11)...] 

P 1232. W= III. 1286 



A 

HI 
HI 
/8 



1891.98 
1893.07 
1896.08 
1896.09 
1898.72 
i8q8.8q 



350-4 
355-7 
354-6 
353-2 
351-8 
358.0 



R.A. 4'^ I" 
Decl. 4- 28' 

0.30 

0.25± 

0.22± 

0.36 

0.40 

0.15 



26= 

52' 



9-3 



3« 


/? 


m 


Sp 


5'' 


Sp 


1)1 


L 


2f2 


Hu 


HI 


L 



Discovered with the 36-inch. 

[^ (xviii). . .(3 (3113). . .)3 {Pub. L. O. n). 
(Mom. Not. Lix, 400) . . . Hussey ( ) . 



.Sp (ill), . .Lewis 



P 546. \V= III. 1323 



R.A. 4'' 3™ 12= 
Decl. +41° 33' 



1878.67 
1883.66 
1896.07 
1898.79 
1898.88 



24-3 
26.8 

32-4 

32.2 

210.7 



0.92 
0.77 
0.82 
0.86 
0.69 



8.0 
8.3 

8-3 



8.0 \}i /3 

8.3 bn En 

2)1 Sp 

5;/ Hu 

8.5 i« /3 



Discovered with the 18^ -inch. There may be 
some advance in the angle. 



[/3 (x).../3' 
( )-.- 



Engelmann (2678) . . . Sp. (in) . . . Hussey 



P 1233. D.M. (66°) 316 







R.A. 4'' 6™ 6^ ) 












Decl. -f- 66° 47' 








1891.85 




37-1 


5.17 8.0. 


.13.2 


4« 


/? 


1898.73 


38.4 


5-10 7-7-- 


.11.9 


2« 


/? 



Discovered with the 12-inch. At first the prin- 
cipal star was suspected to be a close pair, but this 
was not verified with the large telescope. In D.M. 
7.4 m ; Christiania Catalogue 6.8 m. 

[^ (.xviii). . .,3 (3113). . .^ {Pub. L. O. II). . .] 



P 1278. Lalande 7871 

R.A. 4^ 7" 0^ ) 
Decl. +8° 35' \ 

A and B 
1898.85 303.4 7.45 6. 5... 13. 7 3« /3 

A and C 

1898.92 252.3 55.26 ...12.5 i« /3 

Discovered with the 40-inch in looking for 47 
Taiiri. The D.M. magnitude is 6.8. 



P 547- 47 Tatiri 

R.A. 4'- 7" 25^ \ 
Decl. +8° 58' S 



A and B 



1877.84 


359- 


1877.90 


359- 


1878.93 


359- 


1886.20 


363- 


1888.81 


359- 


1889.93 


358- 


1889.02 


359 


1889. II 


350- 


1896.70 


353 


1898.80 


361. 



1877.99 223.1 

1898.82 224.5 



0.89 
0.82 
0.89 
1. 18 

0.91 
0-75 
0.94 

0.91 
1.07 



5-5 
5-0 
5-0 

5-2 

5-0 
5-0 
5-5 
5-5 



AB and C 

o 

32.20 

31-56 



8.0 

7-5 
9.0 

8.7 

8.0 
8.0 

9-0 
8.0 



12.5 
13-3 



3« /8 

3« J 

3« ^ 

2« H2 

3« /8 

3;/ Sp 

3;/ T 

iH Lv 

3« A 

2« /3 



in f3 
3" 13 



Discovered with the i8>^-inch. A fine pair, but 
the change, if any, is very slow. The proper mo- 
tion of this star is small, 0^050 in the direction of 
227?5 (AuwERs), but it is sufficient to show that it 
is common to both stars, as otherwise there would 
be a decided change in both angle and distance. 

The distant companion appears to be fixed in 
space. With the position of C from the measures 
of 1898, and the proper motion of A given above, 



Discovered from iS'ji to i8gg by S, W. Burnham 



47 



the minimum distance between A and C of i f6 
will occur in about 630 years. 

[/3 (x)...,3'...;33...(3 (2875)...^(P«^. Z. 0.ii)...HS( ) 
...A (l). . .Lv'. . .Tarrant (2991)... Sp (in) . . . Aitken 
(3395)- ••] 







P 86. w 


= IV. 129 










R.A. 4'' 
Decl. + 


8'" 39' \ 
23° 13' \ 






1875.68 
1898.74 
1898.84 




5i-i 
49-7 
51.0 


// 

4-05 
4-32 
4.19 


9.0. . . 9.6 
9.0. . . 9.2 


4« 

3« 
i;/ 


Hu 

/3 



Discovered with the 6-inch. Without change. 
There is a 13 ni star, 26o?4 : 26 f 6. 
[i3(ii). . .p(Afo>i. Not. xxxin,437). . ./I (i). . .Hussey ( ). . .] 

P 548" Lalande 8027 



R.A. 4'' 10'" 58= 
Decl. — 10^ 23' 



1877.86 
1879. II 
1891.86 
1898.83 



6.24 



6.10 
6.14 



7.0. 
7.0. 
7.1. 

7-5- 



II-5 
13 
1 1.2 

II-5 



\n 

2)1 

3« 



Cin 

Cg 



1 8 ^/^ -inch. No material 



347-0 
344-4 
345-4 
345-2 

Discovered with the 
change. 

[i3 (x).../3'...Cin5.../3 (3ii4).../3 (Z'^^. Z. O. 11)... Cog- 
shall ( )...] 

p 1234. W= IV. 205 



1891.82 205.5 
1898.80 203.2 



R.A. 4'' II" 
Decl. -|- 21' 

;; 

1-77 
2.04 



56^ 
I ' 

8.3. 



12.6 



3« 

4« 



/8 
Hu 



Discovered with the 36-inch. 
[i3(xviii).../3(3ii3)...|3(Z'z<*. L.O. 11)... Hussey ( 





I 


J 310. W= IV. 258 










R.A. 4" 14"- 21=^ ) 










Decl. + 39° 39' \ 






1878.02 




172. 1 


19.38 8.0. . . 12.0 


2fl 


HI 


IS90.9I 


170.7 


19.51 


m 


HI 


1891.89 


171-7 


19. II 7.7 ... 1 1.2 


VI 


/3 


Discovered wi 


th the 6-inch. Fixed. 






[^ (VI).. 


. /3 (2oe 


2,3114) ... (3 (Piih. L. 0. 


») 


. . n 


(I, u). 


--] 









P 87. P IV. S3 







R.A. 4'' 


15-" 18= 


( 












Decl. -f- 


20'' 32' 








1875.46 




170.6 


2.09 


5-7 




8.8 


5« 


J 


1877.23 


173-4 


1.85 


6-5 




9.0 


\7l 


02 


1886.15 


171. 


2. 10 








211 


HS 


1887.80 


I74.I 


3-II 


6.0 




9-7 


271 


T 


I89I.8I 


169.4 


1.97 


6.6 




10.5 


yi 


/? 



Discovered with the 6-inch. A fine colored 
pair; J gives, goldeji : blue. This is No. 74 of 
Birmingham's Catalogue of Red Stars. A naked- 
eye star in Taurus (B.A.C. 1342). The compo- 
nents are evidently fixed. 

\P (11). . .(3 {Mon. Not. xxxiH, 437). . ./3 (3114). . ./3 {Pub. L. 
O. u)...A {l)...A (2081). . .Tarrant (2899). . .02 {Poiil- 
kowa Obsns. x)...HS ( )...] 





p 


744. Eridani 299 










R.A. 4^ 


lb" 32= \ 
26° \'\ 










Decl. — 










A ar 


d B 






1879-75 




2go±: 


o.6± 


6.5--- 6.5 


p 


/3 


1891.78 


306.6 


0-79 


7.6... 7.6 


3« 


/3 


1894.10 


301.4 


0.59 


7 •- • 7 


\n 


Sel 


1897-73 


312. 1 


0.52 




\n 


See 


1898.88 


314-0 


0.81 


7.0... 7.5 


\H 


A 


1898.93 


307-3 


0.80 
A and C ( 


7-5--- 8 
= H 3644) 


m 


Bd 


1835-9 




20± 


25± 


6 ...14 




H 


1891.79 


6.8 


35-42 


. . . II. 7 


2)1 


/3 


1898.93 


7-2 


35-80 


... 1 1. 


in 


Bd 



A and D (= H 3644) 



1835-9 


37-5 


40± 


... 8 


m 


H 


1891.78 


40.4 


44-63 


-.- 8.3 


0" 


H 


1898.93 


40.8 


44-88 


... 9 


1)1 


Bd 



The principal star of the wide triple, H 3644, 
was found with the 6-inch to be a close pair. The 
measures indicate some motion in angle. 

The Cordoba magnitude of the large star (La- 
lande 8264) is G]^, and of D (O. Arg. S. 3022) 
734 m. 

[/3 (XI). . ./S-. . ./3 (3114). . ./3 (Pub. Z. O. I, U). . .Sellers (3303) 
.. .See (3495). ..Aitken ( ) . . . Boothroyd ( )...] 



48 



General Catalo^iie of Double Stars 



p 402. W IV. 318 

R.A. 4!^ 17"' -i^ I 
Decl. — 1° 33' \ 

O II 

1877.95 74-0 6.94 8. 5... 10. 5 in 13 

1891.86 73.0 7.48 8. 3... II. 2 2;/ 13 
1892.00 74.3 7.37 8.0...11.0 i;/ Col 

1898.72 74.2 7.51 8.6...IO.I 2H (3 

1898.91 70.9 7. 28 8. 2... II. 5 3« Cg 

Discovered with the 6-inch. Unchanged. Cog- 
shall notes a third star 13 m, 110° : 7^8, and also 
suspected the principal star of being a close pair in 

o 

270 . 

[iS (vii).. ./3'.../3 (2103,3114). . .;3 (/'w^. L. O. 11)... Collins 
[^Proc. Haverford Coll. Obsy. l8gi). . . Cogshall ( )...] 



P 1235. Lalande 8235 



R.A. 
Decl. 



4" I/" 
+ 22° 



20^ 
28' 



1891.84 
1896.09 
1896.09 
1898.12 
1898.79 



60 

46 
54 
65 
65 



0-35 
0-35 

0.25± 

0-34 

0-37 



8.4 



. 8.5 yi 


|8 


in 


Lew 


6;/ 


Sp 


in 


Bow 


211 


Hu 


Near K Tauri. 



Discovered with the 36-inch. 

[^ (xviii). . .;8 (3113). . ./3 [^Pub. L. O. 11). . .Sp (in). . .Lewis 
and Bowyer {Man. Not. Lix, 400) . . . Hussey ( )• • ■ ] 



P I185. W= IV. 376 

R.A. 4*' iS" 52=- / 
Decl. + 18° 35' S 

o // 

1890.70 25.6 0.16 7.8... 8.4 4^/ (3 

1896.09 18.0 o.2dz ... 4« Sp 

Discovered with the 36-inch. The magnitude in 
D.M. is 7.5. 
[^ (xvn) ...p (3047) • • •/? {P"b. L. O. II) . . . Sp (III) ... J 



P 745- D.M. (53") 772 

R.A. 4'' ig"" 11= \ 
Decl. +53° 38' f 

1877.95 150+ 0.5+ 8.5. . . 8.5 /3 

1891.86 I34.I 0.52 8.3... 8.3 2fl f3 

1898.87 129.3 0.65 ... If/ Hu 



Discovered with the 6-inch on Mt. Hamilton in 
1879. 

[13 (xI).../3^../3 (3ii4).../3 [Pub. L. O. i, 11)... Hussey 
( )•■■] 

P 403. W IV. 379 



R.A. 
Decl. 



4'' 19"^ 18= / 
— 2° 20' ^~ 



1877.09 


100.9 


2.01 


7.7. . 


. 9.1 


5'^ 


A 


1888.08 


IOI.4 


2.08 


8.0. . 


• 9-5 


271 


T 


1888.39 


98-3 


1-95 


7.0. . 


. 9.2 


VI 


Lv 


1893.10 


104.2 


1.79 


7-S- • 


. 9.0 


211 


Gl 


1898.85 


98.6 


1.96 


7-3-- 


• 9-5 


3« 


Cg 



Discovered with the 6-inch. Unchanged. 

[/3 (vii). . ./3(2I03). ..A (i). . .Lv'. . .Tarrant (2991). . .Glase 
napp (11) . . . Cogshall ( ) . . . ] 



P 1 186. Tauri 248 

R.A. 4'' 20™ 51= ] 
Decl. + 10' 56' ( 

O II 

1890.92 182. 1 0-59 6.8... 9.7 yi ^ 

1893.61 185.3 0.55± ... 2!l Sp 

1896.09 180.5 0.64 ... 5« Sp 

1898.03 174.4 0.75 6.2...10.0 yi A 

Discovered with the 36-inch. A naked-eye star 
in Taurus; 6 m in Argelander and Heis. 
Lalande 8372; The motion, if any, is slow. 

[/J (XVI11.../3 (3047)... i3 {Pub.L. (9.ii)...Sp (iii)...Aitken 
( )...] 





p 


311. Eridani 


31 


5 










R.A. 4" 


21'" 52^ 


I 












Decl. — 


24° 21 ' 


s 








1875.92 




148.4 


// 


7-5- 




7-5 


m 


Cin 


1877.61 


146.9 


1.06 


6.5. 




7.0 


in 


Cin 


1883.91 


l62d= 










m 


W 


1891.72 


147-5 


0.98 


7-3- 




7-4 


2n 


Lv 


1897.67 


333-2 


0.70 


6.0. 




6.6 


in 


See 


1898.88 


332-3 


0.85 


7-5- 




7-5 


2)1 


Cg 



Discovered with the 6-inch. Change uncertain. 
The Cordoba magnitude is 6.2. Lacaille 145 1. 

[/3 (vi).../3 (2062). . .Cin3. .. Cin-t. . .Wilson (Cin ">)... Lv 
{Proc. HaverJo7-d Coll. Obsy. 1891). . .See (349S). . .Cog- 
shall ( )...] 



Discovered from iSji to i8gg by S W. Burnham 



49 



P 184. Lalande 8474 
R.A. 4'' 22"> 45= I 



Decl. 



21° 46 

6.2 
6.5 

7-4 

7-4 



Discovered with the 6-inch. No sensible change. 
In Gould 6.9 m. 

[/3 (iv)...(3 (/)/(?«. A'bA XXXIV, 282). . .Cin'. . . LvV . . Lv 
(Proc. Haverford Coll. Obsy. 1891) . . . Doberck (3378) . . . 
See (3495)...] 



1877-53 


262.5 


1. 10 


1889.01 


261.4 


I. 12 


1891.72 


259.2 


1.09 


1895.90 


259.8 




1897.76 


240.4 


1.30 


1899.09 


257.8 


I. 19 



7-0 


2)1 


Cin 


7-^ 


y 


Lv 


7.6 


\ii 


Lv 




3« 


Do 


7.6 


i« 


See 




111 


^ 





\ 


5 549- 


W 


■ IV. 


458 










R.A. 4" 


23 


m 2= 


\ 










Decl. — 


12 


° 13' 






1877.97 



189.0 


7-85 




8.0 


■ -12.5 


2« 


/8 


1879. II 


185.0 






7.0. 


. . 12.0 


I« 


Cin 


1891.86 


190.5 


8.66 




7-8 


. . II.O 


2;/ 


13 


1898.71 


189.2 


8.44 




8-3 


. . 10.8 


in 


f3 


1898.91 


188.8 


8.52 




7.2 


. . 12.0 


3" 


Cg 



Discovered with the iSf^-inch. Without change. 

[j3 (x).../3V..^ (3114). --^ {P"i- L. 0. II)... Cins... Cog- 
shall ( )...] 



P 789. Lalande 8426 

R.A. 4'' 23'" 30^* \ 
Decl. + 37° 24' \ 

1881.69 322^6 i'.'3o 8.1... 8.8 yi /? 

1888.22 322.3 1.30 8.2... 9.0 3;/ Com 

Discovered with the 15^ inch at the Washburn 
Observatory. Probably fixed. 

[i3 (xil). . ./S-*. . .Comstock {Piih. Washburn Obsy. Vl). . .] 



P 746. Cord. G. C. 5107 

R.A. 4'' 27'" 13'' ^ 
Decl. — 36° 10' \ 

o ;/ 

1879.79 3o± i.2dz 8.0... 9.0 /3 

1S95.10 1 1.9 1.05 7-9. • • 9.0 3« Sel 

Discovered with the 6-inch at Mt. Hamilton in 
1879. Later measures are needed. 
1(3 (XI)... /?■... Sellers (3369)...] 



P 747- Lacaille 15 18 

R.A. 4'' 28'" so'' \ 
Decl. —38'- 32' \ 

1879.79 240± 2.5± 7.5.. . 9.5 /3 

1894.09 218.4 2.25 7 ... 9 211 Sel 

Discovered with the 6-inch at Mt. Hamilton in 
1879- 
[/3(xI)...J3^../3 {Pub. L. O. I)... Sellers (3303)...] 

P 550 and p 1031. a Tauri (aldebaran) 

R.A. 4*^ 29" 2^ I 
Decl. + 16^ 16' f 

A and B (= j3 550) 

o // 

1877.89 109.0 30.45 I ...13.5 sn /3 
1878.00 no. 5 31.26 • • • 15 3« HI 

1880. II III. 2 31.46 ...14.0 2f! 13 

1888.82 109.5 30.90 ■ ■ • 2fl /3 

1890.87 109.0 31.34 ...14.2 3« /3 
1897.79 108.8 31.03 ... 3" (3 

1898.10 109.7 31-30 ... yi A 

C and D (= /3 1031) 



1888.81 


281 


I 


2-34 


9.0. 


. 12.0 


3" 


n 


1890.86 


279 


I 


1.84 


I I.O. 


•13-5 


V 


/3 


1891.72 


277 





1.83 


10.6. 


-13-7 


3« 


/? 


1892.82 


277 


8 


2. II 






V^ 


Bar 


1897.82 


276 


9 


1.62 






\ri 


fi 


1897.83 


276 


9 


2.16 






in 


Bar 


1898.10 


275 


7 


1-74 


9-5- 


.13.0 


3" 


A 


1899.02 


278 


5 


1.89 


9.0. . 


.13.0 


in 


i8 



A and C (= H- VI. 66) 



1836.06 


36.0 


109.04 


... II. 2 


2;/ 


•<? 


1854-66 


35-4 


III. 76 


. . . 10.6 


2 5^' 


02 


1854.24 


34-8 


112.79 


■ • • 10.3 


6n 


J 


1887.00 


34-5 


1 16.27 




2on 


HI 


1889.98 


34-6 


116.97 




1» 


/8 


1898.10 


34-3 


117.90 




A" 


A 


1899.02 


34.6 


117.99 




\n 


^ 



The nearest companion to Aliiebaran was found 
with the Chicago 18 '2 refractor in 1877, and this 
is now shown to have the same proper motion as 
the prinri|)al star; a result which would not be 
expected considering the distance and great differ- 
ence in magnitudes. Both distance and position 



50 



General Catalogue of Double Stars 



angle appear to have remained unchanged, the 
small difference in measure being fully accounted 
for by the extreme minuteness of the companion, 
and the difficulty of measuring it so near a first- 
magnitude star. It was a very difficult object to 
see with the Chicago telescope, and might easily be 
overlooked even with the 36-inch refractor. 

The more distant Herschel companion has been 
observed for more than a hundred years, and the 
change shown by the measures has usually been 
ascribed solely to the proper motion of Aldebaran. 
The distinguished French astronomer, Flam- 
MARiON, was the first to notice the fact that the 



•5-7-19 




"60" Scale of Distance. 



Proper motion of ALDEBARAN and companion. 

well-known proper motion of A could not account 
for the relative change, and therefore came to the 
conclusion that B must have a proper motion of its 
own, and in a different direction. Of the correct- 
ness of this view there can be no doubt, and the 
amount and direction of the relative displacement 
of C should be as well known as of most stars. 
This motion is almost exactly half that of A, and 
is perhaps larger than that of any known star as 
faint as the eleventh magnitude, which is not con- 
nected and moving with some brighter component. 
In looking at this object in 1888 with the 36-inch, 
I found that the Herschel companion also was 



double, or had a very faint attendant a little more 
than 2" distant. This is too difficult for most tele- 
scopes. 

That the proper motion of the faint star B is 
exactly the same as that of Aldebaran will be appar- 
ent from the foregoing diagram, showing the several 
positions of both stars from 1877 to 1898, as given 
by the measures. The annual proper motion of A 
is given by Auwers as of 190 in the direction of 
1 64? 7. The several places of A along the line 
separating this movement are derived from this 
value of the proper motion, and the corresponding 
positions of B laid down from the measures. The 
scale of the distances AB is one-tenth that of the 
proper motion. 

The wide pair, AC, is H' VI. 66 = S 452 = 
2 2 App. II. A few of the measures are given 
above. The early observations, made before the 
work of 2, are not accurate in distance. The 
measures of AC, 1836- 1898, taking into considera- 
tion the motion of A in space, give the annual 
proper motion of C as 0^094 in the direction of 

o 
I 12 . 2. 

The diagram on opposite page, showing to scale 
the several positions of the three components is. 
reproduced from Monthly Notices, March 1891. 

From the measures already made of C and D, it 
is practically certain that these two stars have a 
common proper motion, and therefore form a 
physical system. D appears to have a slow retro- 
grade motion. Taking the relation of these stars- 
as given by a mean of my three sets of measures at 
Mt. Hamilton, and applying the proper motion of 
C as given above, the position of D with reference 
to that star for 1898.10 should be 283?o : 2 ['85. 
The measures all concur in showing a diminishing" 
position-angle, and no increase in the distance. 

The minimum distance between these two inter- 
esting systems occurred about A. D. 11 30, when 
the separation of A and C was only 40". 

[/3 (x, xiv). . .)3'. . .;83...(3 (2189,2875, 3048,3114)... /3 {Mon.. 
Not. LI, 311). . .(3 {Pub. L. O. 11). . .Barnard {A.J. 447). . . 
Aitken { ). . .Barnard ( ). . .] 

Other measures, etc., of the old stars, in addition 
to those given above, will be found in the cata- 
logues of Herschel I, South and Struve, and in 
the following : 

\A {u)...A (147s)... 02 {Mon. Not. XLlv, 237)... OS 
{Poulkowa Obstis. x, p. 64). . .Flammarion {L'Astronomie, \\, 
102) {Etoiles Doubles et Multiples). . .Hall (l) . . .Hall {A. /> 
IS6)...^^..] 



Discovered from iSji to i8gg by S. W. Burnham 



51 



1^0° 



2m 



^0^ 






P 


881. 46 Eridani 










R.A. 4f 


29"' 4= \ 










Decl. - 


- ro'\ 






1879.02 




57-0 


// 
1.47 


6.0 . . . 10.8 


V 


/3 


1879.10 


55-3 


1-35 


5.5. . .10.0 


111 


Cin 


1888.99 


53-0 


1.60 


6.0. . . 10.5 


211 


1' 


1891.77 


52.7 


1.29 


6.0. . . 10.8 


?>" 


^ 


1891.93 


52.6 


1-52 




4// 


T 


1896.10 


50.6 


1.32 




y 


Sp 


1898.12 


49.0 


1.80 


6 . 2 ... 1 1 . 5 


211 


A 


1898.74 


52.4 


1.94 


6.0. . . 9.5 


III 


Cg 


Discov 


ered wi 


th the 18 


_^-inch. A fine ob 


ect in 



a large aperture. Slow angular motion, with no 



material change in the distance. Auwers gives 
the proper motion of the principal star, o.'coS in 
the direction of 2i2?5. 

[/3 (xiii). . ./33. . ,;8 (3ii4)...i3 {Pub. L. O. 11). . .Tarrant 
(2991,3186). .. CinS. .. Sp (ni). . . Aitken ( )... Cog- 
shall ( ) . . . ] 

P 1043. 3 Camelopardali 

R.A. 4'' 30'" 28^ I 
Decl. + 52" 50' ( 



18S8.92 297.3 
1898.80 294.3 



3-92 
3-95 



.0 37 ft 
3« Bar 



52 



General Catalogue of Double Stars 



Discovered with the 36-inch. The principal star 
has a small proper motion of of 020 in the direc- 
tion of i96?o (AuwERs). This movement 1888-98 
would increase the angle 2?8 if the companion 
was fixed. It is very probable from the measures 
that the small star is moving with the other, but 
further observations are needed. 

[/3 (xv)...j3 (2929).. .^ (Pub. L. O. II)... Barnard ( )...] 



P 185. Lalande 8745 

R.A. d^ SI"" 24= \ 
Decl. — 15° 10' \ 



1875-78 


235-4 


3.00 


8.1. . 


.11.1 


4// 


J 


1877. II 


235-9 


3-13 


8.0. 


• 9-5 


iJi 


Cin 


1878.10 


231.8 


2-45 


8.0. . 


- 9-5 


\n 


Cin 


1888.10 


236.7 


3-03 


8.0. 


. 1 1.O 


211 


T 


1898.16 


236.4 


3-09 






in 


See 



Discovered with the 6-inch. Relatively fixed. 
[j3(!v).../3(J/o;?. A^oA XXXIV, 382)... .d (I).. .Cin-t...Cin5. 
Tarrant (2991). . .See ( )• . •] 

P 88. 51 Eridani 







R.A. 4" 


31"" 34' 1 












Decl. — 


2° 43' \ 












II 










1891.88 


90.1 


32-38 


5-7- - 


. I 2.2 


2fl 


1^ 


1898.72 


89.6 


32-03 




. 1 1.2 


2)1 


/8 



Distant companion noted with the 6-inch. The 
proper motion of 51 Eridani \'i o;'o8i in the direc- 
tion of i5i°2 (AuwERs). The measures do not 
cover a sufficient time to show whether or not the 
small star has the same movement. It is probably 
only an optical pair. 

[/3 (11). . .iS (Mon. Not. xxxill, 437). . .(3 (3114). . ./3 {Pub. L. 
an)...] 

P 882. S.D. (11°) 921 

R.A. 4'' 32™ 32= 
Decl. — 11° 38' 



1880.08 


231.6 


2.04 


8.8. 


. 10.0 


Ml 


/3 


1891.89 


226.4 


2.25 


8.7. 


■ 9-4 


3" 


/3 


1898.83 


224.5 


2.70 


8.5.- 


.10.5 


111 


Bd 


1898.96 


228.2 


2.28 


8-5- 


- 9-7 


IN 


^ 



Discovered with the 18)^ -inch. The /// of two 
small stars in the same field. 

[^ (xill).../33.../3 (3114)- --P {Pub. L. O. II).. .Boothroyd 
( )---] 



P 1044. D.M. (16°) 637 



R.A. 4'^ 33™ 1= 
Decl. + 16° 17' 



1888.91 218.5 
1898.11 220.2 



1.03 9.0. . . 1 1.0 yi /3 
0.93 9.0. . . I i.o 2?l A 



Discovered with the 36-inch. It is 3" 59^" / 
Aldebara)i. The measures so far show no sensible 
change. 

[/3 (XV). . ./3 (2929). . .^3 (Pub. L. O. II). . . Aitken ( ). . .] 



P 1236. Lalande 8833 



R.A. 4*' 34'" 27^= 
Decl. — 21° 29' 

A and B 



1891.84 118.3 



1891.84 314.1 
1899.09 313.7 
1899.11 313.9 



1.42 


7 


8. 


. 10.8 


V 


n 


A ai 


id C 










// 
40.24 




. . 


- 8.5 


3« 


iS 


40.13 






- 8.3 


\n 


/? 


40.53 






- 8.5 


111 


A 



Discovered with the 36-inch. A and C are 
respectively, O. Arg. S. 3268 and 3266. 

[j3{xviii).../3 (3ii3).../3 [Piib.L. 0. 11). . .Aitken ( )...] 



P 186. Lalande 8986 

R.A. 4'' 40"' 10^ \_ 
Decl. — 7° 12' \ 



1875.82 


174.1 


2.00 


8.2.. 


. II. 


yi 


J 


1877.87 


175-4 


1.68 


7.0, . 


. 9.0 


in 


Cin 


1879.11 


176.4 


1.38 


8.0. . 


• 9-5 


\n 


Cin 


1886.61 


177-5 


1-79 


8.0. 


- 9-3 


2/1 


Lv 


1888.10 


178.1 


1.63 


8.3.. 


.10.5 


2n 


T 


1888.50 


176. 1 


1.76 


7.2.. 


- 9-2 


2n 


LM 


189-8.71 


176.7 


1-54 


8.3.. 


. 8.8 


\n 


iS 


1898.92 


181.6 


1-65 


8.0. . 


• 9-5 


in 


Bd 



Discovered with the 6-inch. Without change. 

[/3(iv). . .(3 (/)/()«. yVo/.xxxiv, 382).. .A (i). . .Cin". . .Cins. 
Lv'. . . LM . . .Tarrant (2991). . .Boothroyd ( ). . . ] 



Discovered from iSji to i8gg by S. W. Burnham 



53 



p 312. Lalande Q065 







R.A. 4'' 


42 


m 35s 


f 












Dec). — 


21 


" I ' 













;/ 














1870.06 


343-8 


3-13 




8.5. 




10.5 


\n 


Hd 


1876.01 


345-1 


3-24 




7-7- 




9.0 


yi 


Cin 


1876.03 


345-7 


3-35 




8.0. 




9-5 


111 


HI 


1877.52 


343-6 


3-29 




8.0. 




9.0 


2JI 


Cin 


1888.15 


345-8 


3.26 




8.0. 




10. 


yi 


HI 


1898.84 


345-2 


3-05 




8.5. 




10. 


m 


Cg 


1898.88 


344-5 


3-43 




7-7- 




8.5 


2// 


Bd 



Discovered with the 6-inch. Relatively fixed. 
This had been previously seen at the Harvard 
Observatory, but not published until 1882. 

[/3 (vi)...,3 (2062)... Cin 3... Cin -»... Hall {l, u) . . . Aitnals 
Harvard Coll. Obsy., xili. . .Boothroyd and Cogshall 
( )-•■] 



P 551. 96 Tauri 



1670.09 205.7 
1891.94 205.5 
1898.72 205.0 



R.A. 4h 


42"> 52= 


\ 






Decl. + 


15° 42' 








B and C 








// 
6.26 






\n 


/8 


5-83 


II. . . 


.12.8 


yi 


/3 


6.21 


II. 9.. 


■ 13-5 


2)1 


iS 



A and B ( = H 3261) 



1831 55.8 25 ± 6 

1878.09 57.2 30.75 

1891.94 57.0 29.79 6 

1898.72 56.4 29.37 6 



. ..13 



\n H 

211 /3 



The faint attendant to Herschel's companion 
was noted with the iS^^-inch. There is another 
taint star in the group. The above are all the 
measures of AB. It is probably a perspective 
group only. 

The proper motion of the principal star is small. 
It is given in the Berlin A. G. Catalogue as 0^008 
in the direction of 43^9. 

[^ (x)...i3-...^(3ii4)...(yW,. Z. 0.11.)..,] 



p 883- Lalande 9091 

R.A. 4'' 44" 33' { 
Decl. + 10° 52' \ 







A and B 


1879.00 




17-5 


0-35 7-0 


1887.17 


84.7 


0.15 


1888.09 


124.4 


0.18 


1889.15 


149.6 


0.22 


1890.14 


203.4 


0.16 


1891.08 


s 


ingle 


I89I.I4 


Single with 36-inch 


1891.97 


303-1 


0.12 7.8 


1894.66 


356.3 


0.19 


1895.74 


6.4 


0-39 


1895.74 


8.9 




1896.10 


8.9 


0.25± 


1896.88 


16.9 


0.28 


1896.97 


28.3 


0.24 


1897.00 


25-5 




1897.13 


23.8 


o.27z!z 


1897.16 


36.0 


0-35 


1897.31 


37-3 


0.38 


1897.72 


30.2 


0.25 


1897.76 


32-7 


0.21 


1897.78 


37-9 


0.31 7.8 


1897.81 


33-6 


0.25 


1897.83 


31-5 


0.28 


1897.90 


35-2 


0-34 


1897.90 


34-7 


0-39 


1897.90 


34-7 


0-39 


1897.95 


34-8 


0.27 


1898.08 


41-3 


0.23 


1898.09 


37-7 


0.26 


1898.09 


41-5 


0.26 


1898.18 


24.8 


0.25 


1898.69 


43-9 


0.28 6.5 


1898.74 


45-3 


0.19 


1898.74 


46.0 


0.24 


1898.95 


51-4 


0.36 


1899.20 


54-5 


0.20 
AB and C 


IS79.00 


148.5 


It 

18.35 


1891.05 


152.2 


18.22 6.8 


1897.74 


154-7 


'7-74 


1 89 7. So 


153-1 


18.04 


1897.98 


153-9 


17.92 


1898.17 


154-5 


17-55 


1898.74 


154-7 


17-74 



7-0 



7-5 



7-8 



6-5 



\n 


ft 


yi 


Sp 


2« 


Sp 


4« 


Sp 


3« 


Sp 


I'l 


Sp 


2)1 


ft 


yi 


ft 


y 


Barnard 


2-in 


See 


in 


Moulton 


12)1 


Sp 


3« 


A 


ion 


See 


1)1 


Dy 


2>n 


Sp 


m 


Mouhon 


2n 


Lew 


2n 


Do 


yi 


Barnard 


2)1 


See 


2« 


ft 


6;/ 


A 


yi 


Lew 


m 


Bow 


2« 


Br 


y 


Hu 


1)1 


Hu 


6n 


A 


3« 


Lew 


2« 


Sp 


5'^ 


A 


y 


Barnard 


2)1 


ft 


1)1 


Lew 


3« 


A 



14 



m 


ft 


\>i 


ft 


in 


Barnard 


m 


Lew 


m 


Bow 


in 


A 


in 


Barnard 



54 



General Catalogue of Double Stars 



This very remarkable and interesting binary sys- 
tem was discovered with the 1 8 J^ -inch. The motion 
has been rapid, and apparently more than one revo- 
lution has already been passed over by the compan- 
ion. As the components are sensibly equal in 
magnitude, there is, as in all cases of this kind 
where the angular motion is rapid and the early 
measures separated by considerable intervals of 
time, some uncertainty as to the proper quadrant 
to be given to some of the measured angles. It is 
always a difficult pair. The maximum distance 
probably does not exceed o!'2 5. 

Two orbits have been computed for this pair, the 
first by Glasenapp, using the measures down to 
1891.97, giving a period of 16.35 years (A.N. 3119); 
and the other by See from the measures to 1897.19, 
with a period of 5.5 years {Mo/i. Not. June 1897). 
To reach the last result, it was necessary to subject 
some of the measures to corrections of 180° in the 
angles, which seemed hardly warranted when the 
observations were considered as a whole. It also 
required the rejection of the three measures of 
1891.97 with the 36-inch refractor. On the whole, 
from a careful consideration of all the measured posi- 
tions made, it is practically certain that the period 
of five and one-half years is not correct, and, fur- 
thermore, that in consequence of the non-agree- 
ment of some of the measures with any apparent 
ellipse which can be selected, the real period, even 
approximately, cannot be known until the compan- 
ion has moved over a larger arc, and particularly 
through the first quadrant. It has been well 
observed during the last two or three years, but 
even now (1899) the true form of the apparent 
ofbit, for the reasons stated, is somewhat uncertain. 
It is probable that the period will not be far from 
that of Glasenapp, but the other elements may 
differ very widely. 

This star, according to Porter, has no sensible 
proper motion. 



[/3 (xin).../33...^ (3048,3114)... /3(/'z</!.. Z. O. 11)... Sp (in) 
.. .Glasenapp (3119). . .Comstock {Pub. Washburn Obsy. 
x). . .See {Mon. Not. LVll, 577) {Pop. Ast. v, 245) (A.J. 
359)... See (3496)...Hussey {A.J. 427). . . Aitken (3465) 
. . .Aitken {A. J. 415, 429) {Proc. A. S. P. ix, 238). . . 
Barnard {A.J. 435). . .Lewis and Bowyer [Mon. Not. Lix, 
400). . .Hussey ( )... Aitken ( )... Barnard {A.J. 
435. 447)- •■Barnard ()...] 




1S91.9 



fi 833 



9 18S7.2 



-90^ 



IS97.9 



1879.0 



0.0 0.1 

I I I I I I I I I I I 



Scale 

/S 888 
P 552. Orionis II. Lalande 91 09 







R.A. 4" 45" 4= \ 
Decl. + 13' 27' \ 














1874-95 


340± 


o-5± 7 • - • 7 




/8 


1877.97 


36o±: 


o.8± 7 ... 10 


\>i 


/8 


1886.19 


265.0 I 


' 0.5 + 


\n 


HS 


1886.22 




Single . . . 


m 


HS 


1889.19 


144.7 


0.35 ± 


\n 


Sp 


1890.96 


156-7 


0.33 6. 9... 10. 2 


3« 


^ 


I89I.I3 


153-8 


o-3± 


8y/ 


Sp 


1892.06 


Apparently single with 36-inch 


2)1 


/3 


1893.07 


165-3 


o-35± 


\n 


Sp 


1894.15 


178.2 


0.38 + 


211 


Sp 


1894.88 


177.0 


0.40 . . . 


2« 


Bar 


1896. 1 1 


179.9 


o-35± 


7;/ 


Sp 



Discovered from ^8ji to i8gg by S. W. Burnham 



55 



1896 


84 


187 


7 


0.43 


\n 


Hu 


1896 


88 


186 


2 


0.40 


yi 


A 


1897 


13 


193 


5 


o-25± 


. . 2)1 


Sp 


1897 


82 


193 


7 


0.44 


Sn 


A 


1897 


95 


193 


4 


0.43 


yi 


Hu 


1898 


01 


189 


9 


0.45 6.9 


. . 10.2 2n 


Lew 


1898 


12 


197 


2 


0.43 


yi 


A 


1898 


74 


199 


I 


0.45 


yi 


A 



This pair was discovered with the 183/^-inch in 
1877, but in looking over the old observing books 
used with the 6-inch, I find that on December 14, 
1874, this star was noted as "possibly a close pair," 
and the angle and distance estimated as given 
above. It seems to have received no further atten- 
tion with the small telescope, and was discovered 
independently three years later with the large 
refractor of the Dearborn Observatory. 

There seems to be something singular about the 
appearance and difficulty of this pair at times with 
large apertures. It was not noted as difficult at the 



• • 



-2^^ 



1871.S # 



I8T8.0 { \ 



-99^ 



O.U 0.1 0-J 

I I 1_ 



Scale 

(S 552 



O.l O.i 0,6 

-J I I 



time of the observation in 1877. i" 1890 it was a 
hard star with the 36-inch, and on two nights in 
1892, under favorable conditions, I failed to see it 
double at all. Since that it has been measured 
by several observers, and apparently the change is 
slow in the last five years. As the components are 
very unequal, there can be no uncertainty about the 
quadrant. The apparent orbit will probablv be 
very eccentric. 

The principal positions are shown on the accom- 
panying diagram. 

Porter finds no evidence of proper motion m the 
meridian positions. To aid in determining this 
-later I have measured a distant star in the field : 



.11 21 2.7 



44. J 



3 



3« /3 



[p (x). . ./3'. . .,3 (3048,3141). ..piFui. L. O. II). . .Sp (III). . . 
Aitken (^.7.415,429). . . Hussey (/4./. 397, 427). . . Aitken 
(3465). . .Lewis {Mon. Not. Lix, 400). . .Aitken ( ). . . 
Barnard {A.J. 447). . .] 



P 1187. 5 Camelopardali 



.A. 4^ 45™ 14^ ) 








eel. + 55° 4' \ 








12.89 5-5-- 


.12.8 


yi 


/3 


12.70 5.5.. 


. 12.2 


211 


/? 



1890.78 245.2 
1898.84 246.0 

Discovered with the 36-inch. Krueger gives 
the proper motion of this star of 018 in the direc- 
tion of 241?!. If the small star is fixed in space 
its distance should decrease annually by this 
amount. 

[/3 (xvii). . .^ (3047). . ./3 [Pub. L. O. II). . . I 



P 748. S.D. (8°) 961 







R.A. 4'^ 


46 


- 4S ^ 












Decl. - 


8 


° 3'^ 








1879.68 




131-4 


1.03 




9.0. . 


. 9.0 


2)1 


^ 


1891.85 


131. 1 


1.25 




S.6. . 


. 8.6 


2» 


^ 


1898.73 


134.7 


1.36 








\tl 


/3 


1898.93 


130.9 


1.20 




S.o. . 


. 8.5 


m 


C 



Discovered with the 6-inch on Mt. Hamilton in 
1879. There is a small error in the place of this 
star in /3 (xi). The magnitude in S.D. is 8.6. 

[/3 (xi).../a=...(3 (^ii4)...|3 {Pub. L. O. I. ii)...Coi;shall 

( )...l 



56 



General Catalogtie of Double Stars 



P 1237. Lalande 9145 







R.A. 4" 46™ 28= \ 










Decl. -|- 23° 21 ' \ 






I89I.8I 


58^6 


11 
4.32 8.0. . . 10.6 


217 


/8 


1898. II 


58.0 


4.52 8.0. . . 11.2 


2)1 


A 



Discovered with tiie 36-inch. Evidently fixed. 
\P (xviii).../3(3ii3).. .;8 {Pub. L. O. ii)...Aitken ( ).. 

P 316. Lalande 9181 







R.A. 4^ 


46- 52= 












Decl. — 


5° 29' 













// 










1876.12 


178.4 


0.99 


8.0. . 


■ 9-3 


211 


HI 


1876.60 


176.8 


1. 18 


8.1. . 


. 8.2 


4/1 


J 


1877-95 


176.8 




8.0. . 


. 8.0 


in 


Cin 


1879. II 


178.0 


1. 16 


8.0. . 


. 8.0 


\)i 


Cin 


1882. II 


178.8 


1.22 


9.0. . 


. 9.0 


1)1 


W 


1886.94 


179.9 


I-3I 






lit 


LM 


1887.90 


179.4 


1. 10 


8.0. . 


. 8.0 


\)i 


T 


1888.15 


178.6 


1. 01 


9.0. . 


• 9-3 


y 


HI 


1888.66 


179.2 


1. 14 


8.0. . 


. 8.1 


yi 


Lv 


1895.90 


178.5 








yi 


Dob 



Discovered with the 6-inch. There has been no 
change in twenty years. In fi (vi) the R.A. is 10'" 
too great. It is 10' >i of co EridcDii. 

[(3 (vi).../3 (2062)... zl (i). . .Cin-t.. .CinS.. .Wilson (Cin'°) 
.. .LM. . .Lv'. ..Tarrant (2899).. .Hal)(l, 11). . .Doberck 
(3378)...] 



P 313- Lalande 91 14 



R.A. 4*> 49™ 12' 
Decl. -f 68° 59' 



1874.98 250; 



6.5. ..II. 5 111 /3 



The 6-inch seemed to show a small attendant to 
this star, the position of which was estimated as 
given above, with the note, " Companion excessively 
faint. There is a more distant one jt/." There are 
no other observations except of a negative charac- 
ter. I could not find any pair of this kind in or 
near this place with the 36 inch. It was recently 
examined with the 4o-inch (1898), but no near 
companion seen. This star has two distant com- 
panions, i49?8 : 4of3, and i79?o : 43''o. An ex- 
amination of the original record throws no light 



on the question. There is no apparent error in 
the place. The magnitude in D.M. is 7.0. 

[/3(vi)...i3 (2062)...] 



P 553- 0' Orioiiis 



R.A. 4'> 


49 


"37^ { 








Decl. + 


13 


° 19' \ 








28^58 




5 •••12 




2)1 


/8 


29.97 




5^2.. .13 




3« 


/3 


^o^57 




5 •••12. 


5 


2)1 


)« 



1877.86 47.7 

1892.01 48.4 

1898.75 49.1 



Discovered with the i8i/^-inch. The proper mo- 
tion of the principal star is o'og-j in the direction 
of 241 ?9 (AuwERs). This accounts for the change 
shown in the measures, and it is therefore onl}' an 
optical pair. 

L/3 (X). . .^'. . ./3 (3114). . .^ (P^.^ Z. 0. 11). . .] 



P 404. D.M. (8°) 805 



R.A. 4" 49'" 50' 
Decl. -f 8° 58' 



1877. II 


III. 8 


1.56 


9.1.. 


• 9^3 


4)/. 


J 


1888.69 


291.6 


^•52 


8.8. . 


. 8.9 


y' 


Lv 


1891.82 


109.6 


1.94 


8.5.. 


• 8.5 


211 


C 


1898.72 


III. 4 


1.72 






2)1 


Hu 



Discovered with the 6-inch. Without motion. 

[/3 (vil)...;3 (2103).../! (l). . .Lv'. . .Collins [Proc. Havcr- 
/o;-(/ Cfoj'. 1891). . .Hussey ( )•••] 



P 1045. 99 Tauri 



R.A. 4'' So" 32= 
Decl. -|- 23° 46' 



1889.09 


6.2 


6.30 


6 . 


• ■12.3 


yi 


P 


1891.84 


5-6 


6.21 


6 . 


■ •13-3 


3» 


P 


1898.96 


6.4 


6.19 




■ •13^7 


111 


P 



Discovered with the 36-inch. Auwers gives this 
star a small proper motion, ofo2i in the direction 
of 238?4. Further measures are necessary to show 
whether or not the companion has this movement. 

[fi (XV). . .,3 (2929,3114). . .^ [Pub. L. O. II). . .] 



Discovered from iSji to i8gg by S. W. Burnham 



57 



P 554. € Aiirigae 



R.A, 4'' 53" 22= 
Decl. + 43° 39' 



A and B 



1878.89 224.5 
1891.86 224.8 



29.31 
29.30 



3.2. . . 14 
■ ■ • 13-2 



1898.79 223.8 29.93 



/8 
13.5 1?/ /? 



Ill 
211 



A and C 



1878.42 275.4 42.88 

1878.97 275.3 42.91 

1891.86 275.0 43.03 

1898.79 275.0 43.03 



..12 111 /? 

. . [ 1 . 7 4;/ ^ 

. . 1 1 . 7 2 « /3 

..II. 8 \n fi 



A and D 



1878.80 317.9 

1879.47 317. 1 46.37 

1891.86 317.0 46.29 

1898.79 317.3 46.21 



13 
12 

12.6 
13.0 



i;/ (3 
211 13 
2n (3 



i/i 



/8 



These minute stars were noted with the iS%- 
inch. The proper motion is very small, ofo22 in 
the direction of 231?! (Bonn). The same cata- 
logue gives the principal star as variable, 3.0 to 
4.5 m. Ball in his parallax measures (^Dunsink 
Obsns. iv) used a star 207 !'6 distant in the angle of 
47°3- 
[/3(x)...i3'...,3 (3114)... (3 (/>«/;. Z. O. 11)...] 



p 314. Leporis 3 



R.A. 4" S3™ 39= 
Decl. — 16° 34' 









A an 


d B 








1876.69 




149.9 


// 
0-43 


6.6. . 


. 6.9 


4« 


J 


1879 


10 


330-7 




6.0. . 


• 7-0 


\ii 


Cin 


1879 


78 


331-9 


o-5± 






111 


Cin 


1889 


13 


326.9 


1.05 


6.5.. 


. 8.3 


y 


/3 


1890 


40 


321.6 


0.82 






211 


Sp 


1898 


1 1 


326.2 


0.86 


7.0. . 


. 10 


Ml 


Br 


1898 


16 


329.2 


0.98 






I /I 


See 






AB and C 








1889.13 


29.0 


54-45 




. 8.2 


211 


/? 


1898.16 


30.6 


54-83 






Ml 


See 


1899 


09 


3I-I 


54.22 




. 9.0 


Ml 


y3 



Discovered with the 6-inch. In Heis and Arge- 
LANDER 6 m, but placed in Eridajms. Gould gives 
it in Lepus 6 m. Lalande 9420. In all but one 
measure /I rates the components of equal magni- 
tude. The change, if any, is in the distance. At 
the time of discovery the distance was estimated 0^5. 

[(3 (vi). . ./3 (2062,2929). . ./3 (Pub. L. O. u)...A (i). . .CinS. . . 
Cin«. . .Sp (III). . .See ( )... Brown ( )...] 



P 1238, Lalande 9373 







R.A. 4" S3"' 53= ; 










Decl. 4- 26'' 21' f 






1891.82 



12.6 


1.42 8.1 ... I 1.3 


2" 


n 


1899. II 


7.0 


1.57 7.0.. .11.0 


1/1 


A 



Discovered with the 36-inch. It is 25^/ and 
9'i' of the wide pair, South 461. 

[iS (xvill). . ./3 (3113). . .p (Pub. L.O. 11). . .Aitken ( ). . .] 



P 315- O. Arg. N. 5402 



R.A. 4'' 53" 54= 
Decl. -|- 49° 22' 



1877.35 226.0 
1891.86 226.0 



10.45 9-° • • - I i.o 211 J 
10.67 8.7 . . . 9.4 2« /3 



Discovered with the 6-inch. Unchanged. 
[/3 (vi)...i3 (2062,3114)... /3 (Pub. L. O. u)...A (1)...] 

P 1046. 9 Anrigae 

R.A. 4i> 57- 17= \ 
Decl. + 51' 26' S 

A and B 



1888.92 
1898.79 



93-S 
92.0 



6.29 5.5 



. .12.: 



Ml 13 



A and C (= H- VI. 35) 



1783.30 


62.2 


79.50 


1888.19 


61.0 


90.10 


1888.92 


60.8 


89.92 


1898.79 


60.9 


89.85 





\ti 


H" 


9-7 


2fl 


Eng 


9.0 


211 


/3 


S.7 


Ml 


/? 



The faint star, B, was detected with the 36-inch. 
The principal star, according to Aiwers, has a 
proper motion of o.'i69 in the direction of i90?5. 



General Catalogue of Double Stars 



With this movement and the positions of 1888, 
at the time of Herschel's measure in 1783, C 
should have been 70? 8 : 79 ''8. All the measures of 
AC are given above. It is practically certain that 
the new star is moving with A, as otherwise the 
position-angle would be 14° less in 1898 than at the 
date of the first measures. 

[)3 (XV). . .j3 (2929). . ./3 {Puh. L. O. II). . .Engelhardt (Obsns. 
Astr. Part 2). . .] 



P 884. Lalande 9S34 

R.A. 4^^ 57™ 22= ^ 
Decl. — 12° 36' \ 



1879.09 


19.0 


0.54 


8.0. 


I89I.I5 


20.7 


o.6± 




1892.04 


20.7 


0-54 


8.4. 


1896. II 


21. I 


o.6± 





8.0 



211 


H 


V 


Sp 


v 


/8 


A'l 


Sp 



Discovered with the 18^ -inch. The measures 
furnish no evidence of motion. 

[^ (XIII)... (33... /3 (3ii4).../3 [Pnb.L. O. 11)... Sp (m)...] 



P 749- D.M.(55°)958 



R.A. 4^ 57" 375 
Decl. -|- 55° 22' 



1879.73 225.9 °-9i 7.9...10.0 2« fi 

1891.86 228.9 i-ii 8.1. . . 8.9 2;/ ^ 

Discovered with the 6-inch on Mt. Hamilton in 
1879. No material change. 
[/3 (XI). . .^'. . ./3 (3114). . .^ {P'tb. L. O. I, II). . .] 



P 750. "Y Caeli 



R.A. 
Decl. 



35° 39' 



1853-50 


315 


7 


2.82 


5-6 


. . 9.0 


5« 


Ja 


1855.13 


318 


6 




aV. 


■■ 9>^ 


2« 


Pow 


1882.19 


318 


4 


2.23 




. . 


111 


Rus 


1891.08 


3" 


2 


3.12 






111 


Sel 


1892.01 


316 





2.69 


4-5 


.. 8.7 


y 


/? 


1894.08 


307 


7 


2.34 


4 


. . 10 


in 


Sel 


1897.09 


313 


4 


3-17 


5-7 


■ -10.5 


211 


See 



Discovered with the 6-inch on Mt. Hamilton in 
1879, but it had been previously found by Jacob. 
The components are relatively fixed. 



[Jacob {Madras Ubsns. 1848-52). . .Powell (Me??i. R. A. S. 
(xxv)...^(xi).../3=...^ (3ii4).../3 {Pub. L. 0.i,n)... 
Russell {Syd. Obsns. 1871-81) ... Sellers (3154,3303)... 
See (3495)- •■] 



P 751- D.M. (42°) IIS 



R.A. 5'' I" 16= 
Decl. -|- 42° 31 ' 



1891.85 


258.0 


3-07 


8.4. 


. lO.O 


3« 


1^ 


1898.87 


255-9 


3-48 






in 


Hu 


1898.97 


257.0 


3-25 


8.2. 


. 10.6 


2;/ 


/8 



Discovered with the 6-inch on Mt. Hamilton in 
1879. Without change. A star 11. 7 m, 2 04?3 : 
24^42 (1899.09) m. 



[^ (XI)..., 

( )-. 



./3 (:^iia,)...^ {Pub. L. O. I, ii)...Hussey 



p 1047. Aiirigae 47 







R.A. 5^ 2- 13^ ( 
Decl. -^27° 53' \ 






















B and C 








1889.09 




75-3 


.0.44 8.7... 


9.2 


in 


^ 


1890.78 


58.2 


o.24zb 




bn 


Sp 


1892.12 


68.3 


0.26 8.7... 


8.8 


3« 


^ 


1896. 1 1 


50-3 


0.21 




\u 


L 



A and BC (= S 645) 



1829.90 


26.8 


II. 71 


6.2. 


. 8.2 


VI 


5 


1866.14 


27.0 


11.79 


5-8. 


. 8.0 


3« 


J 


1889.09 


26.6 


11.69 


7-2. 




yi 


^ 


1890.78 


27-3 


11.82 






611 


Sp 


1892. II 


27.4 


11.75 


6.5. 




yi 


/8 



The duplicity of the smaller component of S645 
was discovered with the 36-inch. It appears to be 
in rapid motion. The wide pair was first observed 
by Herschel in 1782 (= H' iii. 90). These stars 
are relatively fixed. A few of the measures are 
given above. The principal star is Lalande 9653. 

[j3 (xv).../3 (2929,3141)... /3 (P„b. L. O. II)... Sp (III)... 
Lewis {Mon. Not. Lix, 400) . . . ] ' 

The following references include all the meas- 
ures of the wide pair : 

[Herschel {Mem. R. A. S. xxxv, .xxxvill). . .Madler {Fix- 
stern-Systeme l). . .Secchi {Cat. ij2r Double Stars) . . . {Radcliffe 
Obsns. xxiv). . .A (1204) . . .A (1, 11). . .Glasenapp (11). . .] 



Discovered from i8ji to i8gg by S. W. Burnham 



59 



P 885. Lalande 9758 



R.A. 5^ 4"' 53=^ 
Decl. — 1° 5S' 



0.71 


8.3.. 


. 8.4 


I'l 


/8 


0.65 


8.0. . 


. 8.6 


2/1 


Lv 


0.72 


8.0. . 


■ 9-0 


\n 


C 


o.6g 






\n 


Br 



1880.80 196. 1 

1888.92 X90.7 

1892.13 186.5 

1898. II 194.8 



Discovered with the 18^-inch. Probably un- 
changed. 

1/3 (xill). . ./33. . .Lv'. ..Collms (A.J. 2781 [Proc. Haverjord 
Coll. Obsy. 1892) . . .Brown ( ) . . . ] 



P 1006. S.D. (2") 1169 



1082.00 201.7 
1891.93 203.5 



R.A. 5^ G"" 17= 
Decl. — 2° 21 ' 

A and B 



0.78 9.6, 
0.66 8.5, 

A and C 



1882.00 177.8 52.29 
1891.93 178.2 52.40 
1899.09 177.8 52.37 



II. o 2;/ fi 
9.0 2?1 /3 



9.7 2n /3 
8.7 2n jB 

8.9 271 /? 



Discovered with the 12-inch on Mt. Hamilton 
in 1881. 

1/3 (xiH). . ./33. . .^ (3114), . ,(3 [Piib. L. O. II). . .] 



P 555- P Ononis 



R.A. s'' S-" 47' 
Decl. — 8° 20' 

B and C 



1871.90 B elongated n direction of A (200°) 
1876.20 B elongated in 170 -180° 
1878.14 172.8 0.35 

0.2S±: 



1878.80 55. d 
1879.68 125.9 
1879.76 158.7 
1880.82 
1880.17 
1882.21 



0.4 + 
Doubtful with i8K-inch 
Single 
Single 





Sadler 


211 


/8 


211 


Russell 


S» 


/3 


\n 


Cin 




/3 


211 


Sp 


211 


Sp 



1884.14 


178 







yi 


Henry 


1887 






Always single 




Tarrant 


1889.09 






Round with 36-inch 




/3 


1890.83 






Single with 2600, 36-inch 


3« 


!i 


1891.73 




Single with all powers, 36-inch 




P 


1892.88 






Single 36-inch 




Barnard 


1898.87 


178 





0.16 


yi 


Aitken 


1898.88 


178 


4 


0.12zb 


\ti 


Hussey 


1899.17 


196 


2 


0. 12 


m 


Aitken 



831-53 199-8 
845-94 I99-I 

852.20 199.4 

865.33 201. 1 

876.91 

881.05 

888.13 

898.89 

898.92 



201.3 

202.0 
202.1 
201.7 
201.4 



A and B (= 2 668) 



9.14 I.I 

9-39 
9.69 

9-47 
9-32 
9-31 
9-74 
9.62 

9-55 
A and D 



8.0 



7-8 



3« 


2 


4« 


Ma 


4" 


Ma 


5" 


J 


6>i 


Sp 


4;; 


Jed 


4« 


HI 


2n 


A 


211 


^ 



1878.82 

1892.07 

1898.83 



1-5 
1.4 
I. 



44-48 

44-44 

3 44-IO 



.12.5 
-13-5 



2n 

2 71 



. I 



3-^ 



In 1871, while examining Rigel with the 6-inch, 
I suspected an elongation of the companion, and 
called the attention of observers with larger instru- 
ments to this star. In 1878 I examined it very 
carefully with the 18 J^ -inch, and saw and measured 
what I felt certain was a real and measurable elon- 
gation of the small star. The measured distances 
were noted at the time as being too large. When 
on Mt. Hamilton with the 6-inch, in 1879, I again 
measured the position angle, and regarded the 
elongation as not due to atmospheric causes. This 
star was scrutinized with the 18^ -inch at Chicago 
a number of times from 1880 to 1882, but at all 
times it appeared either round or very doubtful. 
In 1889 and 1890 it was certainly single with the 
36-inch with the highest powers under the very 
best conditions. If the distance had been as much 
as o.'o5, it would have been noticed on some of 
these occasions with the large refractor. There are 
some other observations which tend to confirm the 
theorv of duplicity. Russell speaks of it as being 
divided at times with the Sydney refractor of 11 



6o 



General Catalogue of Double Stars 



inches, although the distance was estimated as a 
quarter of a second. This would seem to be impos- 
sible for any ordinary telescope of that aperture, 
although with such a distance it should be plainly 
elongated. It is evident that one or the othc: of the 
measures of 1878 must be erroneous. Stone noted 
it as "pear-shaped" with the Cincinnati ii-inch 
refractor in 1879. The Paris measures by Henry 
with the 15 inch I get at secondhand, as I have 
not seen the original observations in print. The 
angle agrees well enough with the previous meas- 
ures. One of two conclusions seems obvious : 
Either this star is not double at all, the elongation 
supposed to be seen on the different occasions 
mentioned being due to atmospheric or other 
causes ; or, if double, it must be moving with great 
rapidity. The negative results can be explained in 
no other way. I dislike to believe that I have been 
deceived by any spurious elongation of the small 
star, as this would be the first time such a mistake 
has happened in my experience in double-star 
observations ; but certainly my subsequent failures 
to see this star double would tend to that con- 
clusion. It should be carefully examined each 
year, because if it is really double, it cannot remain 
apparently single very long. On no occasion has 
the bright star presented an unusual appearance ; 
and when B was seen double, other small stars in the 
vicinity were examined, and they were all appar- 
ently round. 

There has been no change in the position of B 
with reference to A. It has been frequently meas- 
ured by most of the double-star observers. Enough 
measures are given above to show relative fixity. 

The faint star C was first mentioned by Mitchell 
in 1846. The foregoing measures are all that have 
ever been made of this star. 

[Since the foregoing was written I have received 
the recent measures of Aitken and Hussey made 
with the great refractor at Mt. Hamilton. There 
is no longer any doubt of the duplicity of this star. 
It is equally certain that the period will be very 
short — perhaps shorter than that of any known 
system.] 

AuwERS gives the proper motion of Rigel 
oI'oiS in the direction of 293? 2. This movement 
would not affect the distance of the Herschel 
companion, but would decrease the angle 7?6 
between the measures of S and those of 1898. It 
is therefore practically certain that A and BC form 
a physical system. 



The following references relate to the duplicity 
of B: 

(3 (x). . .(3 {Eng. Mec/i. Feb. 9, 1872) {Mon. Not. xxxvni, 
476)...(3^../3^../33...(3 (2929,3048,31 14). .. Sadler {Eng. 
Meek. Feb. 4, 1 887)... Russell (Pub. Sydney Obsy. 1871-81) 
{Observatory II, 374). .. Cin''. .. Tarrant (2898)... Sp (ll)... 
Aitken and Hussey ( )■.•]- 

There are many measures of the old pair 
( = H ' II. 33 = Sh 53 = S 668) in addition to those 
given above. They will be found in the references 
given for BC in the original catalogues of H^ Sh, 
and 2, and in the following : 

[Herschel 11 {Mem. R. A. S. v, vill). . .Madler {Fixstern- 
Systeme i ) {Dorpat Obsns. xi, xil, xill, xv) . . . Dawes {Mem. 
R. A. S. vill)...Secchi {Cat. di 132 1 Stelle Doppie) {Third 
Series of Measures, 1855). . .Lassell (858). . . Wrottesley {Mem. 
R. A. S. xxix). . .Fletcher {Mem. R. A. S. xxil). . .Wilson and 
Seabroke {Mem. R. A. S. XLll, XLlll). . .Gledhill {Mem. R. A. 
S. XLil). . .Knott {Mem. R. A. S. 'X.tm). . .Radeliffe Obsns. 
XXII... zl (1185,1735). . .J (l, 11). . . Doberck (2196,2899) 
{Trans. R. I. Acad. XXIX, Part 13). . .Lassell {Mon. N'ot. xill, 
183) , . . Winnecke {Ast. Beob. Ster^iwarte zu Berlin, v)... 
Mitchell {Sid. Mess. May 1847). . .Cin". . .CinS. . .Cin*. .. Sp 
(n). . .Jedrzejewicz (2449). . .Maw {Mem. R. A. S. L, 75). . . 
Hall (11) . . .Glasenapp 11)...] 



P 317- Lalande 9852 



1876.05 12.4 

1877. II II. 6 

1891.87 II. 8 

1898.14 II. 3 



R.A. 5'^ 


8' 


" 54' \ 








Deck — 


23 


° 8' \ 








// 
9.16 




7-5-- 


. II. 


\7l 


Cin 


8.06 




7-5- 


. 10. 


HI 


Cin 


8.53 




7.4. . 


. 10. 1 


yi 


iS 


8-95 








m 


See 



Discovered with the 6-inch. Evidently fixed. See 
measures a distant star 46?5 : i8f75 (1898.14) \ii. 



[/3 (vi). ../3 (2062,3114).. .j3 {Pub. L. O. ll)...Cin3.. 
See( )...] 



P 8855' Lalande 9823 



.Cin". 



R.A. 5'' 10" 0= 
Deck -f 37° 30' 



1880.21 69.3 2.31 7-5-.- 9-5 6;/ ;8 

1898.87 69.3 2.30 ... Ill Hu 

1899.05 67.2 2.50 8. 2... 10.5 m ji 

Discovered with the 18)^ -inch. 
[j3 (XIII).. .|33.. .Hussey ( )...] 



Discovered from i8yi to i8gg by S. W. Burnham 



6i 



P 318. Lalande 9873 







R.A. 5'' 


10"" 15=^ 


\ 










Decl. — 


3° 37' 


' 






1876.23 




227.2 


o'.'66 


8.3. 


. 8.7 


3« 


J 


1878.61 


226.6 




8.2. 


. 8.5 


2)1 


Cin 


1883.13 


226.2 


0-55 


8.5. 


. 8.7 


\n 


Sp 


1886. II 


227.3 


0.48 


8.0. 


. 8.0 


\)i 


LM 


1898. II 


238-5 


0-57 






\n 


Br 


1898.78 


234.2 


0.64 


8.0. 


. 8.0 


yi 


A 


1898.93 


229.9 


0.78 


8.5- 


. 8.5 


211 


Cg 



Discovered with the 6-inch. There seems to be 
no sensible change. 

[/3 (vi)... (2062)... zi (i)...CinS...LM...Sp (11)... Brown 
( K..Aitken ( )...Cogshal] ( )...] 



Pl{ 



T Orioiiis 



R.A. 5*" 11" 47= [ 
Decl. — 6' 58M 







B an 


d C 








1876.22 




49.1 


3-77 


1 1 


. 12 


2)1 


HI 


1878.26 


50.8 


4.10 


1 1 . 


•13 


4« 


li 


1891.94 


51-4 


3-79 


1 1 


.11.6 


yi 


(^ 




A and B (^ 


: H' V. 


25) 






1830 



250.4 


i8± 


4 - 


.14 


\n 


H = 


1868.08 


248.3 


31.28 






IH 


Hd 


1876.22 


250.1 


36.01 




. 1 1 


2)1 


HI 


1877-95 


249.1 


36.20 


. 




1)1 


13 


1891.94 


249.2 


35-27 






yt 


13 


1899.02 


250-3 


35-01 






171 


^ 



A and D (= H 2259) 



1830 


63.8 


i8± 


1868.08 


60.8 


36-03 


1876.22 


59-8 


35-99 


1877-95 


60.0 


36.09 


1891.94 


60.0 


35-97 


1899.02 


60.0 


36.02 



. 12 


1)1 


H = 


. 12 


iti 


Hd 


. 12 


2« 


HI 


. 12 


1)1 


/3 


.10.7 


y 


/S 




1)1 


li 



The attendant to the H' companion was discov- 
ered with the 18 J^ -inch. H' failed to see D, which 
was added by H° i^Fiftli Catalogue). The above are 
all the measures of these stars. 



AuwERS gives the proper motion of the principal 
star o!'o35 in the direction of 290? i. 

r/3 (IV). . ./3 (Mon. Not. xx.xiv, 382). . .jS'. . ./33. . .^ (3114). . . 
/3 (Pub. L. O. \\). . .A)inah Harvard Colt. Obsy. XIII... 
Herschel {Man. R. A.S.w)... Hall (l). . . J 



P 886. D.M. (33) 1020 







R.A. s^ 


14 


^ 24= / 












Decl. -f 


33 


^41' f 












C and 


D 













// 












1882.22 


246.9 


0.90 




8.5.. 


10. 


\?i 


/3 


1892.07 


253-8 


0.77 




9.1. . 


9.6 


3« 


^ 


1898.19 


258.2 


0.82 
A and B 


( = 


2 687; 


) 


2)1 


Lew 


1829.24 




67.6 


17.17 




8.2.. 


9.0 


2)1 


1 


1844.26 


68.6 


16.61 








1)1 


Ma 


1867.22 


68.7 


17.20 




8.0.. 


9.0 


y^ 


J 


1882.23 


68.5 


17-51 




8.5-- 


8.6 


y 


/3 


1892.06 


67.9 


17-30 




8.1. . 


8.6 


211 


/? 


1898.19 


68.9 


17-57 








211 


Lew 



48.73 


... 9.2 


2)1 


2 


48.78 


... 8.9 


y 


J 


48.48 


... 8.8 


211 


/3 


48.53 




2)1 


/3 



A and C (= S 687) 

1829:24 153.5 

1867.22 153.6 

1882.24 153.2 

1892.06 153.9 

The duplicity of the distant 2 companion was 
discovered with the i8i^-inch. There isnochange 
in the wide triple. The above are all the measures 
of AB and AC. The measures indicate some change 
in CD. 

[/3(xni).../33.../3 (3i4i).../3 {Pub. L. O. H)... Lewis {Mon. 
Not. Lix, 400). . .Madler {Fixstern-Systeme l) {Dorpat 
Obsns. XIII). . .J (II). . .] 



P 887. D.^L (33") 1026 

R..\. 5" 14'" 33^ \ 
Decl. -^ll" iS' \ 







A and R 








1882.22 


194-3 


1. 00 


9.0.. 


. 10.5 


2U 


/3 


1891.90 


192.0 


C.96 


8.9. 


. 0.7 


yi 


(i 


I89S.25 


198.0 


0.91 






1)1 


L 


I89S.84 


189.4 


0.S7 


9.0. . 


. 10.5 


1)1 


/8 


IS98.89 


193.6 


1. 10 






in 


Bar 



62 



General Catalogue of Double Stars 



1898.84 112. 8 



A and C 

9-54 
A and D 



13.5 m (3 



1882.24 332.8 10.56 

1891.90 332.1 10.66 

1898.24 335.2 10.55 

1898.84 332.0 10.47 



12 

II. 8 

13.2 



3« /3 

in L 
i« (8 



A and E 



1898.84 201.6 14.80 



,13.5 m f3 



Discovered with the 18^ -inch. The two faint 
stars were added with the 36-inch. 

[/3 (xill). . ./33. . .;3 (3113). . ./3 (Pul'. L. O. II). . .Lewis [Mo7i. 
Not. LIX. 400). . .Barnard ( )• • •] 



P 189. Ononis 81 



R.A. 5h 14" 33^ 
Dec). — 5° 28' 



1875.86 283.6 
1891.92 286.5 
1898.92 286.8 



4.27 
4.09 
4.40 



6.8 ... 1 1.5 3« ^ 

6.9 . . . 10.2 yi /3 
7.2 ... 1 I. o 3« Bd 



Discovered with the 6-inch. The change, if any, 
is smalL Lalande 10023. 

[(3 (IV). . .iS {Mon. Not. xxxiv, 382). . ./3 (3114). . .(3 (^Pub. L. 
0.\l)...A (i).. .Boothroyd ( ).. .] 





p 


190. 

R.A. 5" 


Orion is 8 

14- 38= ; 
8" 9' S 


2 










Decl. — 












A and B 








1876.15 


355-3 


0.71 


7-9-- 


8.7 


4« 


J 


1877.97 


360.7 




8.0. . 


8-5 


m 


Cin 


1879.88 


363-8 


0-53 


8.0. . 


8.0 


4« 


/? 


1887.98 


363-7 


0.60 


7.9. . 


8-7 


yi 


T 


1890.98 


358-5 


0-54 


8.0. . 


8.1 


y 


1^ 


1898.86 


356.4 


0.64 


8.0. . 


8.5 


2« 


A 



AR and C (= S 692) 



1783-73 


7-7 


29.30 






i;/ 


VV 


1825.05 


6.8 


35-68 


8 . 


. 10 


2/1 


S 


1831.48 


4.2 


34.86 


7.8. 


. 8.8 


yt 


s 


1863.10 


3-9 


35-62 






\n 


En 



1867.64 


3-9 


34-84 


7-3- - 


. 8.0 


3« 


J 


1890.99 


3-9 


34-90 




. 8.7 


211 


/8 


1898.86 


3-7 


34-98 




. 8.0 


2)1 


A 



The close pair was discovered with the 6-inch. 
Evidently there is no change in the wide pair 
(= H' IV. 87 = S 475 = S 692). All the measures 
are given above. The principal star is Lalande 
10029. 

[/3 (iv) . . . /3 (Mon. Not. xxxiv, 382) . . . /3' . . . |83 . . . /3 (3048) . . . 
^{Pub.L. O.u). ..A (11, p. 121). . .Cin-«. ..Tarrant (2899) 
...Aitken ( ). . . Engelmann {Jlfess. Neunzig Doppel- 
sttrnen, 1865). . .] 



(5 888. 0- Aurigae 

R.A. s'' 16" 30= \_ 
Decl. + 37° 16' \ 







A and B 








1880.14 


171. 


7.91 6.0. 


. 12.0 


A" 


i8 


1890.97 


167. 1 


8.60 6.0. 


.13.2 


3« 


/8 


1898.82 


166.3 


8.65 
A and C 


.12.5 


4« 


/? 


1898.87 


330-5 


11 
27.24 

. C and D 


.14.2 


211 


^ 



1898.96 348.1 4.4 15 



16 



I// /3 



Discovered with the i8j'2-inch. The proper 
motion of this star is ofo27 in the direction of 
272?! (AuwERs). The interval covered by the 
measures is too short to tell with certainty whether 
the companion is moving with it. The faint stars, 
C and D, were noted with the 40-inch. 

[/3 (xill). . .(33. . ./3 [Observatory,\\\,a,<^i). . ./3 {Pub. L.O.w) . . . 
/i(3048)...] 

P 191. D.M. (34°) 1033 



R.A. 5'' 17"' 19= 
Decl. + 34° 27' 



1875.94 
1891.85 



24.8 
24-5 



3-24 
3-40 



10. 1 . . . 10.4 4;/ A 
9.1 ... 9.1 2« /8 



Discovered with the 18^-inch. Unchanged. 
In D.M. 8.9 m. The 36-inch shows a 13 m star, 
i44?4 : i6:'7. 

[/3 (iv). . ./3 [Mon. Not. xxxiv, 382). . ./3 (3114). . .^{Pub.L. O. 
ii)...J(i)...] 



Discovered from iSji to i8gg by S. W. Burnham 



63 



P 556- Lalande 10 159 

R.A. 5'' 18™ 39= \ 
Decl. — 2° 36' <) 

o // 

1878.17 242.2 0.76 7 ...12 2« |8 

1891.85 239.2 0.89 7.0... II. 3 3;/ ^ 

1898.76 238.0 1. 18 7.0...10.0 \>i /3 

Discovered with the 18^-inch. It is a bright 
star near t] Orionis, and wanting in many of the 
star catalogues. In Lalande and S.D. 8 ni. 

[^(x)...^-.../33.../3(3ii4)...i3 (/>«/.. Z. O. 11)...] 

P 889. W^ V. 518 







R.A. 5" 


20" 10" 


\ 










Decl. + 


34° 19' 


\ 










A and B 








1878.91 




223-5 


I.I I 


8.5. 


. . 10. 


i;/ 


/3 


1891.95 


223.7 


0.80 


8.4. 


. . 8.8 


3« 


y8 


1898.86 


229.1 


0.85 


8.3- 


.. 9.0 


i« 


^ 


1898.87 


227.4 


1.04 


■ 




2n 


Bar 






A and C 








1891.95 



102.6 


// 
3-76 




. .14.1 


pi 


^ 


1898.85 


108.0 


4.09 






i?i 


Bar 






A and D 








1891.95 




108.0 


// 
12.04 




..13-8 


yt 


iS 


1898.86 


105-3 


1 1.65 
A and E 


(= s 1<^ 


-■13-5 
7) 


111 


/8 


1830.75 




131. 6 


// 
18.29 


8.0. 


. . 10.2 


211 


2 


1844.26 


134-7 


17.61 






m 


Ma 


1873-17 


131. 


18.02 


8.5. 


. . 10.0 


2.11 


J 


1878.91 


131-4 


18.04 




. . 10. 


111 


/? 


1891.95 


133-3 


18.22 




.. 9.4 


3« 


/? 


1898.86 


132.0 


18.26 




. . 10. 


in 


/8 






A and F 








1878.91 


c 

200.7 


27.77 




■ -11-5 


\H 


i8 


1891.90 


200.2 


27-85 




. . lO.I 


2/1 


i8 


1898.86 


200.3 


27.84 




. . I I.O 


111 


^ 



The duplicity of the principal star of S 707 was 
discovered with the 18^ -inch, and the very faint 
companions, C and D, added with the 36-inch. 
The S components are fi.xed. The above are all 
the measures. 

[/3 (xiii). . .(33. ../3 {MoH. Not. XXXIV, 392)... /3 (311.4),.,/^ 
{Pub. L. O. n). . .Barnard ( ). . . J (1979). . .J (11). . . 
Madler {Fixsteni-Sys/cme l) (Dorpai Obsns. xi). . . ] 



P 890. Lalande 10175 

R.A. S^ 20"" 49^ \ 
Decl. + 37° 41' J 

1880.14' 286°6 i!'i7 8.4... 8.8 3« ft 

1891.89 285.3 1-08 8.6... 8.7 211 /3 

Discovered with the i8j^-inch. Thus far there 
is no evidence of motion. 

[/3 (xill). . ./33. . ./3 (31 14). . ./3 (Pui.L. (9. 11). . .] 



P 319. O. Arg. S. 3957 



R.A. 5'> 21™ 15^ 
Decl. — 20° 49' 



1876.09 


231-3 


3-98 


8.0 


. . II 


3" 


HI 


1877. II 


228.1 


3.80 


7-7 


. . 10. 


2fl 


Cin 


1879.13 


226.6 


3-72 


7-8 


..II. 5 


Ifl 


(i 


1891.06 


229.7 


4.29 






2/1 


HI 


1898.14 


227.7 


4.26 






in 


See 



Discovered with the 6-inch. It is near ft Leporis. 
The change, if any, is small. 

[^ (vi).../3(2062)...^3...Cin*...Hall (1,11)... See ( )...] 
P 891. W= V. 615 



R.A. 5" 22" 48= 
Decl. + 18° 19' 

A and B 



1879.10 121. 6 9-89 7.0... 13 [// ft 
1891.98 126.7 10.66 8.0... 12. 5 yi ft 
1898.85 122.2 10.66 7. 5... 12. 7 2« ft 

A and C (= H 3275) 

1875.31 20.6 52.86 

1879.63 22.0 52.82 

1891.98 21.0 53-IO 

1892.56 21.0 53.27 

1898.45 20.7 53.54 

The small star was detected with the i8'/2-inch. 
H has no measure of AC. The wide pair is also 
02 (App) 64. The foregoing are all the measures. 
C is W" V. 617. The distance between A and C is 
slowly increasing. The meridian positions for 1825 
make the distance 51 ."o at that time. 

[/3(xiu)...^3...^(3n4).../3 (A//.. Z. a 11)... J (I. p. 246) 
. . .Franz (3464)- • ■] 



7.2. . 


• 7-7 


3« 


J 


7-5- - 


• 7-5 


2/1 


/3 


8.0. . 


. 8.1 


3^' 


i8 


7.4.. 


. 7-8 


4" 


Fr 




• 7-6 


2/1 


ft 



64 



General Catalogue of Double Stars 



P 320. P Leporis 



R.A. s"^ 23" 



Decl 



20'^ 51' \ 







A and B 








1875.09 




267.7 


2.89 3 


. . I I.O 


111 


J 


1876.07 


280.0 


2.78 


. . 10. 


211 


J 


1876.96 


290.7 


2.98 


. . 1 1.0 


4;; 


J 


1877-33 


283.1 


2.80 


. . 8.6 


4;/ 


Cin 


1877.46 


282.5 


3.12 


. . 1 1.0 


V 


HI 


1877-76 


294.4 


3.01 


. . 10.8 


3" 


J 


1878.10 


283.6 


2.63 




5" 


Rus 


1878.35 


293.1 


3-07 


..10.8 


3" 


J 


1879.10 


285.3 


2-74 


. . 9.0 


111 


Cin 


1879.18 


285.0 


2.88 




811 


Sp 


1879.47 


284.6 


2.54 


. . 10.9 


■J II 


/8 


1879.77 


286.3 


2-57 


.. 7-8 


ifi 


Cin 


1879.98 


281.3 


3-05 




211 


HI 


1880.10 


282.8 


2-85 




211 


HI 


1880.56 


287.8 


2.72 




211 


Pt 


1882.10 


282.4 


2.70 




3" 


HI 


1882.68 


287.0 


3-03 




8« 


Sp 


1889.02 


292.5 


2.79 


. . 10. 


y^ 


T 


1889.06 


293.0 


2.83 


. . 9.0 


III 


Lv 


I89I.I2 


282.1 


2.89 




211 


HI 


1897.78 


288.5 


3-05 




211 


See 


1898.12 


295-7 


2.72 


- -10.5 


VI 


A 



A and C (= H 3761) 



1835.90 145-9 
1898.94 146.3 



70zb 
65-58 



■13 

.11.5 



111 
211 



H 

i8 



The close star was discovered with the 6-inch. 
The measures are not wanting, but are not as 
accordant, especially in the angles, as might be ex- 
pected in an easy pair of this class. The apparent 
change in the position-angle shown by the earlier 
measures made the companion appear to have rapid 
direct motion, but the subsequent measures show 
that the change, if any, is very slow. 

AuwERS gives the proper motion of /3 Leporis 
ofoSi? in the direction of 194^9. The interval 
covered bv the measures is sufficient to establish 
the common proper motion of the two components. 
Assuming 285^: 2;'88 for the position of the com- 
panion in 1876.5, its place, if fixed in space, should 



be 317°: 3f4 for 1898.5. It is certain that no such 
relative change has taken place. 

Two distant stars are : 



1879.88 75.0 206.36 
1879.88 57.6 241.53 



.10 in /3 
.10 \n ^ 



[/S (vi). . .;3 (2020,2062) . . ./3=. . .^3. . . J (i) . . . /| (2195). . .Hall 
(2295.2430) (l, n) (Wash. Obsns. 1880, 1882) . . .Cin-t. . . 
CinS. . .Cin*. . . Pritchett [Pub. Morrison Obsy. No. i). . . 
Russell {Sidney Obsns. 1871-81). . . Lv' . . .Tarrant (2991) 
. . .Sp (n). . .Sp (2133). . .See (3495). . .Aitkin ( ). . .] 



P 557" Lalande 10311 



R.A. 5'' 23"' 16= 
Decl. + 3° 3' 







B and C 








L878.I6 




142.4 


0.46 


9-5- 


- 9-5 


211 


13 


1890.80 


153-2 


o.3± 






6n 


Sp 


1890.90 


147-3 


0.36 


9.0. 


. . 9.0 


3" 


/8 


1895.46 


152.2 


o.4± 






3" 


Sp 


1898.98 


1 5 1.8 


0.42 


9.0. 


. . 9.0 


\n 


A 




A 


and BC ( 


= 27: 


^0 






^783-72 




152.4 


;; 
20.05 






111 


H' 


1823.14 


^52. 7 


24-73 


7 - 


- 9 


111 


Sh 


[830.18 


150.9 


24.21 


7.0. 


. 9.0 


211 


S 


1847.07 


150-7 








in 


Ma 


1863.14 


151. 2 


23-99 


7.0. 


. 9.0 


5" 


En 


1868.65 


149-7 


24-57 


7-0. 


. 8.9 


4" 


J 


1878.15 


149-8 


24.32 






111 


/8 


1890.88 


149.4 


24-72 






3" 


Sp 


1890.91 


149-8 


24.61 


7.6.. 




211 


/3 


1893.12 


148.8 


24.49 


6.8.. 


. 8.7 


211 


Gl 


1898.93 


149-3 


24.68 


7.0.. 




2n 


A 



The close pair was discovered with the i8j^-inch. 
All the measures of the wide pair (= H' IV. 45 = Sh 
57 =2721) are given. It is evidently unchanged. 

IP (x).../3-...;8 (3048)... /3 (Pub. L. O. n)...Sp (in)... 
Aitken ( )...Madler {Fixslern-Systeme, ll)...Engel- 
niann (Mess. Neunzig Doppelsternen, 1865). . .Glasenapp 
(11)...] 



Discovered from i8ji to i8gg by S. W. Burnham 



P 1239. D.M.(34°) 1074 



R.A. 5'' 23"" 28= 
Decl. +34° II' 

B and D 



1891.77 324.6 2.31 ...15.2 2« yS 

A and B (= H 367) 



1873.77 


239.2 


7-1 






in 


Rosse 


1891.77 


233-8 


8.00 


9-5-. 


• 9-9 


yi 


^ 


1899. II 


232.3 


8.18 


9-5- • 


.10.5 


\n 


A 



A and C (= H 367) 



9-7 




\7l 


Rosse 


10.53 


... II. 2 


3« 


^ 


9.88 


... 1 1. 


\n 


A 



1873-77 310-5 
1891.77 3I0.I 
1899.11 308.5 



Herschel's description of the wide triple is : 
"One of the most curious objects in the heavens. 
It is a triple star forming an equilateral triangle, 
and placed exactly in the center of a small circular 
nebula, which extends a little beyond the stars on 
all sides, surrounding them like an atmosphere." 
The second star of this triangle, in order of mag- 
nitude, was found to be double with the 36-inch. 
The small star is extremely faint. The only pre- 
vious measures of the Herschel stars which I have 
been able to find were made with one of the 
reflectors of Lord Rosse's Observatory. They are 
evidently only approximate, and no change can be 
inferred from the differences in distance. The 36- 
inch shows another faint star 14 m, i3.''6 from A 
in the direction of i8?7. Aitken, i6?8 : 14^76 
(1899. 1 1) iti. 

fj3 (xvill)...j3 {Mon. Not. LIl, 4S4)...(3 (3i4i)...(3 {Pub. L. 
O. II, pp. 178, 224). . .] 



P 558. 8 Ononis 



1S78.46 226.9 
1892.06 226.8 
1898.84 226.5 



R.A. 5" 


25-" 52^ ^ 






Decl. — 


0° 23' ) 






A and B 






33-27 


2.0. . .13.5 


V 


/? 


32.40 


... 14 


y 


^ 


32-35 


...13.7 


211 


/8 



A and C (= H- V. 10) 



1781.90 


358. 


1835-75 


359- 


1863.05 


359- 


1870.05 


359- 


1879.08 


360. 


1898.84 


359- 



52.97 
52.74 
52.48 

52.49 
52.62 

52.56 





in 


H' 


6.8 


S" 


2 




5" 


En 


6.7 


5" 


J 




2n 


/3 




271 


/3 



The faint companion was detected with the 18^- 
inch. The proper motion of 8 Orionis is 0^022 in 
the direction of 288?4 (Auwers). With this value, 
and the position of C from the measures of 2, that 
companion, if fixed in space, should be in 1898.8, 
36o?6 : 52^3. As a wide pair this is H" W 10 = 
Sh 60 = 5 14 App I. 

[^ (x)...^-...^3...^ (3141)...^ {Pi^b. L. O. II)... J (II)... 
(Radcliffe Obsns. Vols. 23, 31, 38, 39)...Secchi {Cat. di 
JJ2I Stelle Doppie) {First Series of Measures, Obsy. Coll. 
Rome, 1855). . .Engelmann {Mess. Neunzig Doppelsternen, 
1865). . . Jedrzejewicz (2329) . . .Glasenapp (11). . . ] 



48. Lalande 10437 






.A. l^ 26"" 37= \ 






eel. — 1° 41' \ 






II 






2.20 6.2. . . 10.7 


3« 


a 


2.22 6.0. . . 10.8 


3« 


A 



1889.13 358.2 
1898.20 354.6 

Discovered with the 36-inch. A naked-eye star 
in Orion; 6 m in D.M. and Heis ; Gould, 65^. 
No proper motion in Greenwich 10- Year Catalogue. 

[/3 (xv).../3 (2929)... |3 (/'«^. Z. (9. II)... Aitken ( ).. .] 



P 1049. W- V. 631 







R.A. 5" 


27" 3' 


I 










Decl. — 


1° 48' 


\ 










C an 


d D 








1888.91 




296.1 


0.76 


8.7. 


■ ■ 9-7 


4// 


/? 


1890.20 


297-7 


0-73 






2« 


T 


I89I.I6 


297.2 


0-5 ± 






IM 


Sp 


1895. 1 1 


291.8 


o.6±: 






4« 


Sp 


I898.S8 


294.2 


0.58 


9.0. 


• - 9-5 


i;/ 


/8 



66 



General Catalogue of Double Stars 



A and B (= 2 734) 



1832.93 


356.4 


1.78 


7.0. 


. 8.6 


3« 


s 


1845.20 


357-9 


1. 91 






I// 


Ma 


1867.76 


353-8 


1.65 


7.0. 


• 8.5 


3« 


J 


1872.02 


355-3 


1-45 


8-5- 


• 9 


i/f 


Hd 


1878.99 


354-9 


1-75 


8.0. 


- 9-5 


\n 


/? 


1886.13 


355-6 


1.82 


7.0. 


- 8.5 


m 


W 


1886.94 


352.6 


1.83 


6.5. 


. 8.0 


in 


LM 


1888.72 


355-8 


1-95 


7.1. 


. 9.2 


2.11 


Lv 


1888.91 


355-2 


1. 61 


7.0. 


. 8.0 


A,n 


/? 


1890.20 


358.6 


1.62 






2n 


T 


1890.80 


355-6 


1.60 






5« 


Sp 


1892.92 


354-2 


1.64 


7-2. 


- 8.5 


2/1 


J 


1895. II 


354-3 


1-59 






^11 


Sp 



AandC (= H" V. 119) 



1783.76 248.4 

1832.43 243.1 

1845.19 243.9 

1867.76 242.9 

1872.02 245.0 

1879.02 242.8 

1881.91 242.8 

1891.13 243.5 

1894.16 243.2 



30.20 
29.29 

27-13 
29.36 
30.11 

29-47 
29.42 
29.24 
29.25 





\n 


H' 


8.6 


6« 


S 




\n 


Ma 


8.6 


yi 


J 




III 


Hd 


8.7 


211 


fi 




yi 


13 




211 


Sp 




2 71 


Sp 



The duplicity of C was discovered with the 36- 
inch. The change is not very pronounced. In 
appearance it is an interesting quadruple, but there 
has been no change of the Herschel and Struve 
companions with respect to A. All the measures 
of these stars are given above. 

[j3 (XV)... (3 (2929)... 133... ;3 (Pu6. L. O. 11)... Sp (m)... 
Tarrant (3185,3186) ... Madler (^Fixstern-Systeine \) . . . A 
(11). .. LM ... Lv. . .Wilson (Q.'Ya'^°) . . .Aimah Harvard 
Coll. Obsy. xm ... Jones [Proc. Haverford Coll. Olisy. 
1892). ..1 



P 1267. Lalande 10423 

K.A. 5'' 27™ 22= \ 
Decl. -t- 30° 51' i 



1892.13 217.9 
1894.16 216. 9 
1896. II 215.2 



0.84 8.5. 

0.82 

0.86 



-5 3« /3 

2« Sp 

4« Sp 



Discovered with the 36-inch in the course of 
measures of Nova Aurigae. The measures appear 
to indicate some retrograde motion. The magni- 
tude in D.M. is 8.0. 

[/3 (XIX). . .^ (3141). . ./3 {Pub. L. O. n). . .Sp (III) . . .] 



{ 13. 


W 


V. 676 






R.A. 5^ 


28 


"36^ \ 






Decl. - 


- 4 


='34't 






1.38 




8.0 . . . 10. 


2« 


A 


1. 01 




8.0. . . 10. 


in 


Cin 


1. 10 




8.3... 8.9 


yi 


/3 



1876.08 128.8 

1879.10 131.7 
1892.00 131. 6 

Discovered with the 6-inch. In a low-power 
field with 2 743. No sensible change. 

[(3(i)...j3 (Mon.No/. xxxill, 351). . ./3 (31 14). . ./3 (/"w^. Z. O, 
u)...A (i)...Cin5...] 



P 1050. Bond 974 



R.A. 5'> 


30™ 55= ) 








Ded. — 


5° 33' \ 








II 
0.67 


10.5-. 


.11.7 


3« 


/5 


0.65 


10 . 


. II 


in 


A 



1889.03 283.6 

1898.94 283.6 

A difficult pair of small stars in the nebula of 
Orion, i'" 32^ / of 6' Orionis, and 5'^-. Discov- 
ered with the 36-inch. It is No. 974 of Bond's 
catalogue of stars in the great nebula. 



[j3-(xv)...|3(2929)...;3(/'«(^. Z. O. n)...Aitken ( 



P 1240. 26 Aurigae 



.] 







R.A. 5" 30'" 56= / 






Decl. + 30° 25' \ 






A and B 


1892.00 



344-4 


0.15 5.6 :. . 


1892.84 


354-2 


0.22 


1893.22 


342.9 


0.15 + 


1893.94 


342.5 


0.16 


1894.17 


347-2 


0.20liz 


1896.13 


338.8 


o.20zb 



6.0 



3" /8 

3« Bar 

i« Sp 

m Bar 

4« Sp 

9« Sp 



Discovered from 18'] i to i8gg by S. W. Burnham 



67 



AB and C (= S 753) 



1828.61 268.0 12.34 5.8 

1865.52 268.0 12.39 5-7 

1880.95 268.3 12.17 

1891.95 268.3 12.25 



1895.54 268.4 12.41 



8.0 yi 
7.8 yi 



yi Sp 
8.7 4;/ /8 
ion Sp 



AB and D (= (3 90) 



1877.87 113. 2 31.47 
1891.97 112. 7 32.33 
1898.96 112. 4 32.97 



. . . T 1 . 5 lit /3 
... 1 1. o 3« jS 
... 1 1.5 2« (3 



The close pair was discovered with the 36-inch. 
As the components are nearly equal in magnitude, 
it is a comparatively easy object with that aperture. 
Rapid motion would be expected in a pair of this 
class. It is certainly a binary system. 

As a wide pair this has been known for more than 
a century (H' III. 64 = S 492 = 2 753). There 
has been no change whatever in the position of this 
companion with reference to the primary since it 
was first measured. A few only of the measures are 
given above. 

The fourth star, D, was noted by me with a 6-inch 
in 1872, but it had been previously seen by Mor- 
ton at Lord Wrottesley's Observatory, though 
apparently overlooked by Herschel and Struve. 
It was first measured in 1877. The distance in 
that observation, by a clerical error, was printed 
25f86 in /3\ It should have been as given above. 
All the measures of this star are given. 

The annual proper motion of 26 Atcrigae is 
o;'o44 in the direction of 276?5 (Auwers). This 
movement, though small, is sufficient to show that 
the S companion is moving in space with exactly 
the same proper motion. Otherwise, with this 
motion of A, and 2's position of C, the latter star 
for 1898.7 should be 265?2 : 9 ''27. The change in 
D corresponds to the proper motion of AB, and 
this star, therefore, is not a member of the system. 

£/3 (it, xviii). . .^(A/oH. Not. XXXIII, 437). . .(3' . . .;3 (31 13) . . . 
j3 (//./. 256)... |3 {Pub. L. O. 11).. Sp (ill)... Barnard 
(^./.447)...] 

There is an unnecessary number of measures of 
the H-S companion, since it has been known for 
nearlv half a century that it had no sensible motion 



with respect to the large star. These observations 
will be found as follows: 

[Ma (Fixs/ern-Systeme l) {Dorpat Obsns. IX, X, XI, XIII, xv) 
. . .Dawes {Obsns. at Bishop's Obsy.) {Mem. R. A. S. xxxv) . . . 
{Obsns. at Barclay's Obsy. I, 11). . .Jacob {Meni. R. A. S. xvil) 
. . .Worster and Jacob {Madras Obsns. Second Series). . .Rad- 
diffe Obsns. xxill, xxx). . .Wrottesley {Mem. R. A. S. xxix) 
. . .Secchi {Cat. di 1321 Stelle Doppie). . .Gledhill {Mem. R. A. 
S. XLll). . .OS {Poulkowa Obsns. ix).. .A (l, ll). . .zl (1036). . . 
Duner {Mesures Microm. 1876). . .Sp (ll). . .] 



P89. 



Lalande 10608 







R.A. 5i> 
Decl. — 


31" 295 j 
1° 30' i 








1875.68 



344-2 


0-55 


7-9- 


- 8.5 


3;; 


J 


1878.40 


356.1 


0.81 


7-5-- 


. 9.0 


2>l 


Cin 


1879.59 


361.6 


0-73 


8.0. 


. 9.2 


4« 


/? 


1888.52 


360.1 


0.88 


8.0. 


- 9-3 


2;/ 


Lv 


1889.15 


362.1 


0.77 


. 




4« 


Sp 


I89I.I5 


360.9 


0.72 






V 


Sp 


1898.88 


357-2 


0-75 


8.1. 


. 9.1 


A'l 


A 


1898.88 


361.6 


0.74 


8.0. 


. 10. 


in 


/? 


1898.91 


361-7 


0-95 


S.o. 


. . 10.2 


211 


Cg 



Discovered with the 6-inch. It is 1™ 23^ / 
e Oriofiis, and 12' 57" J'. A difficult pair with that 
aperture. It has no appreciable proper motion 
(Porter). 

[P (11).. ./3 {Man. Not. XXXIII, 437)... i33 J (i).. .CinS.. . 

Lv\ . . Lv {Sid. Mess, viii, 77). . .Sp (iii) . . . Cogshall 
( )....Aitken( )...] 



P IO51. Bond 1096 

R.A. 5'' 32"' I* I 
Decl. — 4° 57' S 



1889.09 24.7 0.75 10. 1... 10. 7 3;/ (i 

A difficult pair in the nebula of Orion; discov- 
ered with the 36-inch. It is 2'" 38*/ 6' Oriofiis, 
and 31' ''/. A 7j^m star 2 2^4 / and 2' 34" « of 
the new pair. 

[i3(xv).../J(2929).../3(/W'. L. a II)...] 



68 



General Catalogue of Dotible Stars 



P 1032. (7 Orio7iis 



1888.81 
1890.20 
1890.81 
1891. 16 
1891.88 
1892.22 
1S93.22 
1096.21 
1898.87 



1831.20 
1869.97 
1888.84 
1893.62 
1899.12 



1869.97 
1899.12 



R.A. 
Decl. 



357-0 
353-7 
351-6 
360.5 
349-7 
348.7 
349-3 
346.4 
332-9 



5" 32"^ 43' 
— 2" 40' 

A and B 

4 



0.26 
o.3z! 
0.29 
0.25 
0.23 
0.25 
0.25 
0.25 
0.27 



AB and C (= S 762) 



1831.42 236 

1869.97 235 

1S88.17 237 

1888.84 237 

1899.12 237 



1 1. 00 
1 1.07 
1 1.46 
11.23 
11.28 



4.1 
3-9 



10.3 
9-5 



AB and D (= S 762 



84 
85 
83 
^l 
82 



60.9 
60.9 



12.86 
12.76 
12.84 
12.96 
12.77 

AB and E 

41.64 

41.42 



1831.20 230.8 
1871.34 230.9 



30-03 
30.10 



E and D 

7.0. 



4// 


^ 


2)1 


Sp 


yt 


/S 


in 


Sp 


y^ 


/8 


2)1 


Sp 


y^ 


Sp 


in 


Sp 


A,n 


A 



A,) I 

4« 
211 

3« 

yi 



2 
J 
HI 



7-5 


3« 


2 


6.8 


4« 


J 




3« 


/8 




5« 


Sp 




yi 


18 



6.3 A,n J 

y^ ^ 



7-5 yi 2 
yi ^ 



The close pair was discovered with the 12 -inch. 
It is certain to be a binary, and the measures 
already made indicate retrograde motion. The 
maximum distance probably does not exceed o!' 2 5 ; 
otherwise I would have found it before. Auwers 
gives the principal star a proper motion of 0^024 
in the direction of 2g-j°.'j. It is evident that both 
stars have the same movement. 



There is no relative change in the distant stars- 
(= H' II. 10 = Sh 63 = 2 762), and they must 
therefore have the same proper motion as a-. An 
annual movement of even 0^02 in the time covered 
by the measures would be apparent if either of 
these companions was fixed in space. With this 
proper motion, and the positions of 2 for the dis- 
tant companions, at this time (1899.1) they 
should be ; 



AC 
AD 



228.7 
88.0 



10.33 
14.24 



[(3 (XIV). . ./3 (2875,3048,3114)- - -P (-P^^i- L. O. 11). . .Sp (III) 
. . .Aitken ( ). . .] 

The following relate to the old companions : 

[Madler (Fixstern-Systeme l) {Dorpat Obsns. XI, xill, xv> 
...Herschel {Cape ObsJis.) . . .V)?,\vt% (Me?/!. R. A. S. vill 
{Obsns. at Bishop's Obsy.). . .Raddiffe Obsns. xxill, XLVI... 
Jacob {Mem. R. A. S. xvi). . .An. Konigsberg SternwartCy 
Munchen xvil. . .Anfials Harvard Obsy. xill. . .Engelmann 
{Mess. Neunzig Dopplesternen) . . .Wilson and Seabroke {Mem. 
R. A. S. XLIll) . . .Nobile {Rend. Accad. Sci. Napoli, Jan. 1875) 
. . .Webb {Mon. Not. xx, 253) . . .Dawes {Mon. Not. xx, 285) 
. . .A (11). . .CinS. . .Gaudibert {Soc. Ast. France Bui. 1890). . .- 
Hall (11) . . . Hahn {Mikrom. Ver. des Sternhaiifens 2 762,. 
Leipzig, 1891). . .Glasenapp (n). . .Sold (3529). . .] 



P 321. Leporis 45 







R.A. S*" 


33" 59' 












Decl. — 


17° 55' 












A and B 








1877. II 


142.4 


// 
1.06 


7.0. 


. 8.0 


\n 


Cin 


1877-33 


144-5 


0.68 


6.8. 


- 8.3 


yi 


J 


1879.48 


139.2 


0-99 


6.9. 


- 7-3 


yi 


/3 


1888.92 


141. 2 


0.76 


7.1. 


. 8.4 


2n 


Lv 


1891.15 


145-4 


o.6± 






2« 


Sp 


1896.20 


153-0 


0-55 






in 


Sp 


1898.16 


I43-I 


0.81 






m 


See 






C and D 








1877. II 


358°o 


1-56 


8.0. 


- 8.5 


m 


Cin 


1877-34 


357-5 


1.26 


9-3- 


- 9-7 


yt 


A 


1879.48 


359-4 


1.49 


9.0. 


. 9.8 


in 


y8 


1888.94 


358-8 


1.40 


8.5- 


• 9-0 


271 


Lv 


1898.16 


358-7 


1-44 






\n 


See 



Discovered from i8yi to i8gg by S. W. Burnham 



69 







AB and C 








1876.59 


136.0 


89*46 


. 9.0 


2n 


J 


1879.18 


136.0 


88.41 


. 


IP 


/3 


1893.16 


135-8 


89.30 6.6 . . 


. 8.4 


3« 


Gl 


1898.16 


136.6 


89.29 

AB and E 




\n 


See 


1876.59 



6.2 


76.20 7.0. 


. 8.0 


2n 


J 


1893.16 


6.3 


76.23 6.6. . 
AB and F 


• 7-5 


21} 


Gl 


1876.59 


298^5 


// 
126.46 

AB and G 


. 8.5 


2)1 


J 


1878.17 



48.7 


60.3 

AB and H 


. 10 


111 


^ 


1878.17 


310.4 


41.79 


•13 


\n 


/5 


1898.16 


306.2 


40.96 


. 


\n 


See 



The five principal stars of this group were ob- 
served by Herschel (Cape Observations), and en- 
tered as H 3780, with the description "Quintuple, 
6th and 7th classes, magnitudes 7, 7, 8, 8, 8." 
With the 6-inch I found that two of these stars 
were close doubles, and noted two more faint stars 
in the group. The four bright stars, A, E, C, and 
F, are, respectively, 10726, 10727, 10728, and 10725 
of Lalande. The group is just visible to the 
naked eye as a 6 m star. 

The measures give no certain evidence of motion 
in the close pairs. 

[^ (vi). . .^ (2062). . ./3'. . ./33. ..A (11). . .Cin-t. . .Lv'. . .Knott 
[Observalory IV, 184,212). . .Sp (ill) . . .Glasenapp (11). . . 
See( )...] 



P 1007. 126 Taiiri 

R.A. 5'' 34"' 22^ \ 
Decl. + 16° 28' \ 



1881.86 


266.2 


0.27 


6.0. .. 


1887.16 


249-5 


o.3±: 


. . . 


1888.07 


241.7 


0.2dz 


. . . 


1889.10 


239-3 


o.3± 




1890.78 


Single with 1000, 


36-incli 


1891.79 


EIo 


igation doubtful, 36-inch 


1892.06 


Pe 


haps elongation in 330 



6.2 



211 


/8 


i" 


Sp 


211 


Sp 


s» 


Sp 


in 


P 


I// 


H 


m 


^ 



1894.16 243.6 
1896.15 230.8 
1897.13 226.9 
1897.81 245.1 
1898.20 227.2 

1899.17 244.3 



0.22: 

0.20: 

0.20: 

0.36 

0.20 

0.18 



2« Sp 

3« Sp 

2n Sp 

m (3 

in Sp 

i« A 



Discovered with the 12-inch on Mt. Hamilton 
in 1881. It was single or too close for the 36-inch 
1890-92. The measures since then show but little 
change in the angle, but a whole revolution may 
be covered by the observations. The components 
are nearly equal, and therefore some of the meas- 
ures may require a correction of 180°. In my 
measure with the 40-inch in 1897 it was noted: 
" The distance is less than 0^3 ; the smaller star is 
/." In the first set of measures in 1881 with the 
12-inch it was stated : "The measured distances are 
decidedly too large." The distance is probably 
always less than o!'25. There is little doubt of its 
being a binary of short period. 

The proper motion is small, o!'oi3 in the direc- 
tion of i73?7 (AuwERs). 

[^(xiii)...^3.../3 (3048,3114)... /3 {Pui.L. O. II)... Sp (III) 
...Aitken( )...] 



P 322. O. Arg. S. 4178 



R.A. 5'' 34"" 40^ 
Decl. — 25° 13' 



1877. II 104.2 
1898.14 103.4 
1898.83 103.0 



2.23 
2.76 
2.87 



8.0. 



8.0. 



9-5 
9.0 



m Cin 
i« See 
m Bd 



Discovered with the 6-inch. 
[/3(vi).../3(2o62)...Cin-'...See ( ). 



. Boothroyd ( ) . . . ] 



P 14. Lalande 10696 

R.A. 5^ 34- 48^ ) 
Decl. + 29-' 47' ) 



1S74.17 194. 8 

1S75-43 194-7 
1891.90 194.5 



5-/ 



78 



5-79 
Discovered with the 6-inch 



7.4. .. 10.5 
7.9. ..10.2 



If! 

A" 

2tl 



02 

J 

/3 



Unchanged. 



[,3 (1)...^ (.)/<;«. AV/. .\xxiii, 351). ..^ (3114)... /3 {Pub. L. 
O. 11). . .02 {Poulkowa Ohsns. X). . . J (1). . .] 



70 



General Catalogue of Double Stars 





p 


1052. L 


alande 


10776 










R.A. 5^ 


35"" 39' 


\ 










Decl. — 


2° 57' 


\ 






1889.14 


189! I 


0.66 


7.2 


. . 8.2 


3« 


i8 


1890.13 


191. 1 


0.47 






3" 


Sp 


1892.00 


192.6 


0.48 






6// 


Sp 


1898.19 


188.6 


0.70 


7.2. 


.. 8.5 


211 


A 



Discovered with the 36-inch. Probablv without 
change. In Gould 6.7 m ; in S.D. 7.5. 

i^ (xv). . .j3 (2929). . .j3 {Pub. L. O. II). . .Sp (ill). . .Ailken 
{ )...] 

P 752. D.M. (47°) 1193 

R.A. 5I' 37-" 19' \ 
Decl. + 47° 51' \ 

This 7 Yz m star was suspected to be a very 
close pair, 120" : o ['5, with the 6-inch on Mt. Ham- 
ilton in 1879. It was examined (1890.66) with the 
36-inch, and it was certainly single then with the 
highest powers. There are no other observations 
of it, negative or otherwise. It is possible that the 
apparent elongation was an illusion, but it should 
be examined further. 

[^ (XI). . ./3^ . .^ (3048). . ./3 {Pub. L. O. I, II). . .] 



A and C 



p 9^" Lalande 10913 

R.A. 5*1 40" 29^1 \ 
Decl. + 20° 54' \ 



1075-34 
1891.93 



7.5...10.C 2>n 



5« /3 



82.0 1.57 

80.9 1.75 

Discovered with the 6-inch. Probably without 
change. 

[/3 (II). . .^ {Mon. Not. XXXIII, 437)- • -^ (3113). ■ -^ {Pub. L. 
O. II)... J (I)...] 

P 559- D.M.(o°)ii77 

R.A. 5'' 40"" 36^ \ 
Decl. + 0° 7.' \ 

A and B 



1878.12 85.3 
1891.93 84.2 
1898.73 86.4 



1.74 9.0... II. 5 4« /? 
1.96 9.3 ... 1 1.4 211 fi 
2.10 9.7. ..12.0 111 (i 



1879.13 201.8 50.72 
1891.92 201.9 50-34 
1898.73 201.4 50-35 



• •• 9-5 A>i /^ 
. . . 9.2 yi /3 
. . . 9.8 111 (3 



This is in the nebula. Messier 78. The wide 
stars had been remarked by H. The close pair was 
discovered with the 18^ -inch. There is no evi- 
dence of motion. All the measures of i\C are 
ariven. 



[/3(x)...^-...^3. 



]ii4)...p {Pub. L. O. II)...] 



P 892. D.M. (17") 1006 

R.A. s"! 40"" 40= \ 
Decl. + 17° 41 ' \ 

O II 

1879.09 272.8 1.19 8. 8... 13 2n (i 

1891.89 276.2 1. 15 9.0... 10. 4 2« ji 

Discovered with the 18^ -inch. It is 12^ f 
130 Taiiri. 

[/3 (XIII). . .^3. . .(3 (3114). . ./3 {Pub. L. (9. II). . .] 



P 192. T Aiirigae 

R.A. 5h 40" 525 \_ 
Decl. -f 39° %' \ 

A and B 



1877.82 350.0 
1892-03 352.0 
1898.75 352.0 



38.93 


5 


. . 12 


\n 


^ 


39-29 




..11.9 


211 


/8 


39.28 




. . 12.2 


211 


^ 



A and C (= H' V. 21) 



1877.82 


32-9 


47-85 


... 12.0 


\ii 


li 


1892.03 


33-3 


47.96 


... 11.1 


211 


/? 


1898.75 


34-0 


48.52 


...11.5 


211 


/3 



The nearest companion to r Aurigae was noted 
with the 6-inch. A more distant star was recorded 
by H '. All the measures of this star are given above. 
The principal star has a proper motion of o.''o43 in 
the- direction of 23g?4 (Auwers). The interval 
covered by the measures is too short to say whether 
or not this small movement affects the positions of 
the companion stars. 

[;3(iv)...i3 (il/o«. A^o/. XXXIV, 382).. .^ (3141). . .(3 {Pub. L. 
O.n)...] 



Discovered from i8yi to i8gg by S. W. Burnham 



71 



p 92. W= V. 1309 

R.A. sh 40-" 57=^ \ 
Decl. Ar 11° ^' S 



1875.45 170.2 

1890.15 171. 7 
1892.03 169.9 

1892.16 170.3 



8.87 9.3 ... 1 1. o in J 

8.59 ... 3// T 

9.24 8.6 . . . 9.6 211 P 

9.12 ... 2« T 



Discovered with the 6 inch. Relatively fixed. 

[/3 (ii). ..(3 (A/on. Not. xxxiir, 437) . . .(3 (3141).. .^ {Pub. L. 
0.\\)...A (I)... Tarrant (3186)...] 



P 561. Lalande 10969 







R.A. 5^ 4I-" 18^ ) 












Decl. -|- 12° 22' 








1878.09 




4.0 


19.70 7 .. 


■13 


\7t 


P 


1892.00 


3-4 


19.47 7 .. 


. 12.2 


yi 


P 



Noted with the 18^-inch in looking for H 5465. 
[^(x)...^'...^(3ii4)...^(/'«^. Z. a II)...] 

P 560. Lalande 10958 







R.A. 5'' 41 


m T^^s 






Decl. + 29 


° 41' 


1877.88 



208.2 


0.94 


8.0 


1889.66 


178.2 


o.6zh 




I89I.I5 


174.0 


0.58 




1892.10 


172.4 


0.60 


8.0 


1895.06 


155-3 


0.52 




1898.12 


167.5 






1898.59 


163-3 


o.6g 




i8g8.88 


165.8 


0-75 




1899.00 


166.6 


1.02 


8.0 



8.0 



8-5 



m 


^ 


2)1 


Sp 


4« 


Sp 


4// 


yS 


in 


Lew 


m 


Bow 


2fl 


Lew 


2fl 


Hu 


\n 


iS 



S.6 



Discovered with the i8j^-inch. .V binary in 
rapid motion. It should be carefully measured 
each year, as it is likely to have a short period. 

10 (x). . ./3'. . .j3 (3141). . ./3 (Pub. L. O. II). . ..Sp (ill). . .Lewis 
[Man. Not. l.vi, 359) {Greenwich Obsns. 1895). . .Lewis 
and Bowyer ( ) . . . Ilussey ( ) . ■ ■ ] 



P 93- W^ V. 1332 

R.A. 5'' 41"' 44'- \ 
Decl. + 20' 59' \ 







A and B 











// 






1891.85 


121. 7 


60.03 8.3... 


271 


ft 


1898.85 


121. 7 


60.07 8.2 .. . 
B and C 


2)1 


13 



5.71 9.1. . . 9.2 2« 13 
5.46 9.5...11.0 m /? 



1891.85 167.0 
1898.92 162.3 



1891.85 323.6 
1898.92 326,2 



The distant triple companion was noted with the 
6-inch. It is not likely to have any special interest. 

[iS (II). . .(3 {Mon. Not. xxxiii, 437). . .(3 (3114). . ./3 {Pub. L. 
O.ii)...] 



B and D 








9-43 


. . 1 1.2 


2)1 


ft 


9-74 


..II. 3 


1)1 


ft 



P 15' Lalande i k 

R.A. s'' 41™ 45=* 
Decl. — 2° 20' 



1875.60 174.3 

1878.12 177.9 

1886.89 179-8 

1S98.84 178.7 



2.07 7.8 . . . 12.0 2)1 J 

1.67 8.0 . . . 10.5 1)1 Cin 

2.08 8.1 .. . 10.2 211 LM 
2.05 7.5...11.0 \n Cg 



Discovered with the 6-inch. Apparently without 
change. 

[/3 (i)...i3 {Mon. Not. xxxiii, 351)... J (i). . .CinS. . .LM 
...Cogshall( )...] 



p 405. W V. 1045 

R.A. S*" 42"> 22^ [ 
Decl. — 13° 34' \ 



1877.95 125. 1 14.50 8.5...11.0 \)i /3 
1892.04 126.8 14.45 8. 3... II. 6 2« /3 
1S99.11 126.7 14-13 8.5... I 1. 5 2« /J 

Noted with the 6-inch. Without change. 
[/3 (vii) . . .|3 (2103.3141). . ./S'. . ./3 {Pub. L. O. II). . .] 



7-^ 



General Catalogue of Double Stars 





1^ 


406. W 


V. 1068 










R.A. 5^ 


43 


-n js 










Decl. — 


13 


°28' } 






1877-95 




243-1 


II 
12.01 




9.0. . . 12.0 


1)1 


/3 


1892.00 


242.3 


"■39 




8.7. ..II. 3 


3« 


li 


1899. II 


244.4 


11-33 




8.7 .. . 12.0 


211 


i3 



Discovered with the 6 inch. In the field with 
2 801 rej. 
[(3 (vii).../3'.../3 (2103,3141)... /3 [Pub. L. O. II)...] 



P 94, Leporis 61 







R.A. 5^ 


44 


„t 5s > 












Decl. — 


14 


^31' t 








1876.16 


179-4 


2-73 




6.0.. 


9.4 


4;; 


J 


1878.10 


180.3 


2-39 




6.0. . 


8.5 


HI 


Cin 


I88I.I4 


182.5 


2.72 




7.0. . 


9.0 


\n 


yS 


1888.08 


178.8 


2.82 




6.0. . 


8.4 


VI 


Lv 


1888.49 


179.7 


2.61 




6.0.. 


9-5 


211 


T 


1892.99 


178.6 


2.48 




6.0. . 


8.4 


211 


J 


1898.84 


1 80. 1 


2.56 




6.5-- 


9.0 


\n 


Cg 



Discovered with the 6-inch. Evidently without 
change. This star is Lalande 11086. 

In 1846 Jacob found a pair, the rough place of 
which reduced would give for 1880, R.A. 6'' 5"': 
Decl. — 14° 35' {Mem. R. A. S. xvii). He states 
that he subsequently looked for it several times, 
and could not find it. From a careful search I am 
certain there is no such pair in or near his place. 
There is no doubt now of its identity with /3 94, 
Jacob having made an error of about 20 " in his R.A. 
This is confirmed by his description of the pair, 
i84?o : i:'8± : 6>^.. .9. 

[/3 (II)... /3 {Mon. Not. xxxill, 437) . . ./33. . . J (i). . .CinS. . . 
Lv'. . .Tarrant (2991). . .lones [^Pj-oc. Haverford Coll. Obsy. 
i892)...Cogshall ( )...] 



P I188. Lalande 11084 



1890.84 106.0 
1893.22 105.5 



R.A. 5^ 44" 33= / 
Decl. — 1° 28' ^ 






A and B 






1.23 7.9. ..10.3 
1.05 


3« 

177 


/3 
Sp 



1898.77 


104.5 


1.02 


7-7- 


. 1 1.2 


2)1 


^ 


1898.88 


103. 1 


1-43 


8.0. 


. 10. 


xn 


A 



A and C (= S 809) 



1831.16 


IOI.2 


25.70 


7-7 


.. 8.8 


3« 


s 


1847.23 


99.6 


25-49 






\n 


Ma 


1863.18 


98.9 


24.90 






2)1 


En 


1868.56 


99-6 


25-25 


7-9 


.. 9.0 


4;/ 


J 


1879.02 


98.3 


25.22 


7-7 


■- 8.3 


2n 


^ 


1890.85 


98-3 


25-32 




.. 8.7 


3« 


/3 


1898.77 


97-8 


24.98 




.. 8.4 


2)1 


/? 


1898.88 


98.2 


25.00 




.. 9.0 


m 


A 



The principal star of 2 809 was found to be 
double with the 36-inch. 

There is no material change in the 2 companion. 
All the measures of this are given. 

[i3 (xvii)...i3 (3047)... /3 {Pub.L. C. ii)...i33...Sp (iii) . . . 
Aitken ( )...Madler {Fixsterii-Systeme ll)...Engel- 
mann (^Mess. Neunzig Doppehterncn) ... J (11) . . . ] 



p 1053. Aurigae 146 



R.A. 5'^ 45" 18^ 
Decl. + 37° 19' 



1889.92 233.2 0.43 7-5--- 9-5 i« |8 

Discovered with the 36 inch. Lalande 11066. 
In Lalande 6>^ m, and 6.8 in D.M. 

[/3(xv).../3(2929).../3(/'z<*. Z. O. II)...] 



P 1054. 136 Taiiri 



R.A. 5^ 45™ 475 
Decl. +27° 35' 



1889.08 232.2 15.00 6 ...12 yi ^ 
1898.94 232.7 15.01 6 ...13.1 2« /3 

Discovered with the 36-inch. The proper motion 
of this star is o!'o2i in the direction of i72?8 

(AUWERS). 

[/3(xv)...;8(2929)...^(/'«('^. Z. O. 11)...] 



Discovered from iS'] i to i8gg by S. W. Burnham 



7?> 



P 95- Lalande 1 1128 



R.A. s'' 46"' 9= 
Dec). — 7° 20' 



1878.16 298.2 13-67 8.0... 12.0 \n /3 
1892.00 296.1 13.89 8.2...11.0 2H (i 

Discovered with the 18^ -inch ; fi/ ^5 Ononis. 
Probably fixed. 

[(3 (11)... /3 {Afon. No/, xxxm, 4S7). . .^ (3ii4).../3 {Pub. L. 
an)...] 



P 563. Lalande 1 1156 



R.A. 5I' 47'" 44^ 
Decl. + 15° 29' 



1878.06 183.9 

1886.18 184.5 

1892.00 185.2 

1898.77 183.3 



7.42 7.8 . . . II. o \n ji 

6.50 ... m HS 

6.52 8.1 .. . 10.8 2>n P 

6.81 8.0 ... II. o yi yS 



Discovered with the i8j^-inch. Probably fixed. 
{x)...p\..p{3ii4)...p(Pui.L. a ii)...HS ( )...] 

P II90. W V. 1269 



R.A. 5'i 51™ 175 
Decl. + 0° I ' 

A and B 



1890.85 


340.1 


1. 41 7.4. 


. 10.8 


3« 


/8 


1898.86 


337-7 


1.60 7.5. 


. 10.2 


2U 


A 


1898.88 


341-4 


1.40 7.2. 
A and C 


.10.7 


211 


/8 


1890.85 



95-5 


// 
6.65 


.12.5 


V 


iS 


1898.86 


95-8 


6.20 


.12.5 


211 


A 


1898.88 


94-7 


6.36 


.11.7 


211 


/? 



Discovered with the 36-inch. The distant star 
C is noted in the Harvard Zones, where it is called 
17 ni, and distance estimated 8". 



[iS (xvil).../3 (3047)... /3 [Pii/:. L. O. ll)...Ailken ( 



■] 



P 1 189. Schj. igg 

» 

R.A. s^ 5i>" 18= } 
Decl. + 0^ 23' f 

A and B 



1890.90 269.5 0.20 8.1 



)7.i2 133. 1.'' 



uncertain 



9.1 yi (i 
111 Sp 



AB and C 

o // 

1890.85 194.5 58.11 ... 8 211 ji 

1898.88 194.5 58.02 8.2... 8.4 111 /3 

Discovered with the 36-inch. The magnitudes 
of A and C in D.M. are 9.0 and 9.2. D.M. (0°) 
1230,1229. 

[P (xvn). . .(3 (3047). . ./3 {Pui. L. O. 11). . .Sp (III). . .] 



P 1055. Aiirigae 161 



.92 332.9 



R.A. 5h SI" 32^ 
Decl. + 44° 35' 

A and B 



1. 61 6. 7... II. 5 yi /? 



Aand C (= H^ V. 91) 



1783.49 315. 1 
1888.92 329.7 



30-05 
o3- JD 



9.2 



m H' 
3« /3 



The close companion was discovered with the 
36-inch. The Herschel companion has been 
wholly neglected for more than a century. The 
above are all the measures. This star is B.A.C. 
1899. The proper motion is given by Kustner 
as 0^057 in the direction of 238^6. It is pretty 
certain that A and B are moving together. With 
this proper motion and the position of C for 1S8S, 
if the small star was fixed its position at the time 
of Herschel's measure should have been 32o'":33.'S. 

[/3(xv)...|3(2929).../3(/^//<'-. Z. a 11)...] 



74 



General Catalogue of Double Stars 



P 564- D.M. (—1°) 1088 
R.A. 5^ 54» 59^ ^ 



Decl 



1° 34' \ 



^^11-T:> 


90±: 


I ±; 


9.0. 


. I I.O 




/? 


1892.04 


70.9 


1.29 


9.0. 


.10.5 


211 


/^ 


1899.02 


73-0 


1-47 


8.7. 


.10.3 


\n 


/8 



Di; covered with the 183/2 inch. Further measures 
are needed. 

1^ (x)...(3'.../3 (3141)... (3 (/>/./;. Z. a II)...] 



P 1056. [J. Orionis 

R.A. 5" 55- 47= \ 
Decl. + 9° 39' i 



1889. II 272.0 16.80 

1890.86 272.7 17. II 

1898.08 273.8 17.25 



..14 yi /3 
..14.2 yi (i 
..14 m A 



Discovered with the 36-inch. The large star has 
a proper motion of 0^031 in the direction of 49^8 
(AuwERs). It is probably only an optical pair. 

[^ (XV) . . .j3 (2929,3048) . . .P(Pi<b. L. 0. 11) . . . Aitken ( ) . . . ] 



P 16. 3 Mo7iocerotis 



R.A. 5^ 56-" 12^ 
Decl. — 10° 36' 



1872.14 


356.1 


1.80 


S\ •• 


10 


m 


K 


1875-59 


354-8 


1.62 


6.0.. 


9-7 


2!l 


J 


1877.97 


352-2 


2.12 


5-5- - 


8-5 


in 


Cin 


1878.17 


354-0 


1.66 


5-3 -• 


8-3 


2)1 


Cin 


1888.99 


354-0 


1.69 


6.0. . 


9-5 


2)1 


T 


1889.02 


353-9 


1.88 


5.2. . 


9.2 


V2 


Lv 


1898.83 


351-5 


1.82 


6.0. . 


10. 


1)1 


Cg 


1898.88 


356-1 


1.68 


6.0. . 


10. 


1)1 


/3 



Discovered with the 6-inch. The measures show 
no relative motion. This star is involved in a 
large, faint nebula (Dreyer 2142). The proper 
motion, according to Auwers, is o!'o36 in the 
direction of 3 13? 3. Taking this value, and the 
position of the companion in 1875 from the meas- 
ures of J, the small star, if fixed in space, should 
be 23?9 : i!i4 (1898.8) It is evident from the 



measures that no such relative change has occurred, 
and that the components, having the same proper 
motion, probably form a physical system. 

[/3 (l). . ./3 {Mon. Not. xxxill, 351). . .Knott (Mem. R. A. S 
XLlll). . . J (l). . .Cin'*. . .Cin5. . .Tarrant (2991). . . Lv'. . . 
Cogshall ( ) . . . ] 



P 893. 



5.A.C. 1935 



R.A. 5^ 56™ 49= 
Decl. +37° 58' 



1878.90 128.0 17.60 
1892.07 130.5 17.95 
1898.79 127.4 17.75 



6.2 . . . 12.5 2)1 (3 
6.2 . . . 12.5 2)i /3 

6.5. ..II. 5 1)1 /3 



Discovered with the 18)^2 -inch. This is a naked- 
eve star near 40 Aurigae. 

[/3 (xiii).../33.../3 (3141)...^ {Pub. L. O. II)...] 



P 1 241. 3 Gemi?iornni 



R.A. 6^ 2'° 27= ) 








Decl. +23° 8' i 








A and B 








0-53 5-9-- 


. 10. 


3« 


/s 


0.48 + 




y^ 


Sp 


A and C 








i8!'36 


•14-5 


\n 


/3 


18.60 


. 14.0 


1)1 


/8 



1891.84 344.7 
1894-53 331-2 



1891.85 63.3 
1899.05 60.5 

Discovered with the 36-inch. It is a difficult pair 
of the 85 Pegasi class. The proper motion from 
the Be)-Un A. G. Catalogue is very small, o.°oo24 in 
the direction of 145^4- 
[^(xvin)...^(3ii3)---^ ^P^'b- L. O. ii)...Sp (iii)...] 



P 17. 4 Monoccvotis 







R.A. 6'' 2™ 48= \ 












Decl. - 11° 8' i 












A and B 








1872.14 


178^6 


3-38 6.5.. 


.10.5 


1)1 


Kn 


1875.90 


178.0 


3.16 6.8.. 


.10.5 


V 


J 



Discovered from i8ji to i8gg by S. W. Burnham 



75 



1878.10 180.6 

1888.98 178. 1 

1892.02 180.4 

1898.17 181. 4 



2.69 


6.5 •• 


. 10.0 


i;z 


Cin 


3-37 






2« 


T 


3.21 


6.0. 


. 10.4 


3« 


li 


3.01 


6.0. 


. 10.2 


2Jt 


A 


A and C 









..11.5 


\H 


Kn 


• -ii-S 


m 


J 


. . 10.8 


y 


/? 


..II. 5 


2 71 


A 



1872.14 244.1 I0± 

1876.78 244.5 8.95 

1892.02 246.8 8.77 

1898.17 249.1 9.32 

The nearest companion was discovered witli the 
6-inch, and in measuring that Knott detected the 
third star C. Auwers gives the proper motion of 
the principal star 0^029 in the direction of 84^2. 
With this value, and the relation of AB from the 
measures of J in 1875, the smaller component, if 
fixed, should be, for 1898.17, 189:4 : 3 ''27. The 
measures show no such change in the angle, and 
point to a common proper motion, so far as A and B 
are concerned. The observations are not sufficient 
to decide as to C. 

[/3 (i). . ./3 {Mon. Not. xx.xill, 351). . ./3 (3114J. . ./3 (Pith. L. O. 
ll)...Knutt [Mem. R. A. S. xi.lll). .. Cins. . .Tarrant 
(2991). . . Aitken ( ) . . .] 



P 1058. 4 Gcminorum 



R.A. 6'' 3'" 135 
Dec). -(- 23° I ' 



1889.13 


284.3 


0.41 


7.2. . 


■ 7-5 2>i (3 


1890.88 


284.0 


o.25±: 




8n Sp 


I89I.OI 


281.3 


0.28 


6.3.- 


• 6-4 3'/ /3 


1891.84 


283.1 


0.30 


6.5.. 


. 6.6 3./ /3 



Discovered with the 36-inch. There is an error 
of 180° in the angle as originally printed. The 
proper motion of 4 Geminoriivi in Auwers is o!'oi4 
in the direction of 270". It is certain that this 
pair will prove to be a binary system. Late meas- 
ures are wantinyf. 



1/3 (XV)... (3 (2029,3048,3114).../ 
(inj...| 



{Puh. I.. O. II) ... Sp 



P 565. Lalande 1 1741 

K..\. 6*' 3"" 41= \ 
Decl. — 14" 3' S 



1878.21 


100.4 


1.02 


8 . 


. 12 


III 


/3 


1892.07 


99.9 


i'i3 


8.1. 


. 9.1 


3« 


ft 



Discovered with the i8i^-inch. Apparently un- 
changed. In L and W -jy^m ; D.M. 8.2. 

[/3 (x). . ./3'. . .^ (3141). . .^ {Pui. L. O. II). . .] 



P 1242. S.D. (6 = ) 1431 

R.A. b^ 3" 42= \ 
Decl. - 6° 18' f 

A and B 



1891.87 124.5 0.48 8.6... 8.8 3« /3 

AB and C (= H 2298) 



1830 


90± 


35± 


8.9. 


. 10 


III 


H 


1891.87 


92.9 


43-87 




..10.7 


in 


ft 



The close pair was discovered with the 36-inch 
while examining the nebula No. 2182 of Dreycrs 
Catalogue. The wide pair, H 2298, is found in 
HerschtP s Fifth Catalogue of Double Stars, in which 
he says: "The larger star has a strong nebulous 
burr. It is my father's IV. 38." In the 36-inch 
this is a large faint nebula, with the double cen- 
trally placed in it. All the measures of C are given 
above. 

\P (xvill).../3 (Mon. AV. Lli, 45S)...(3 (3ll3).../3 (Pw*. Z. 
O. II, pp. 178, 225)...] 





P 


1017. S.D. (2') 

R.A. 6'> b"* 28^ ) 
Decl. — 2° 56' \ 


1510 






1 88 2 



i8oih 


ti 
o.8z!z 8.7. 


. 8.8 




ft 


1S92.05 


161. 1 


0.65 8.5. 


. 8.8 


y> 


ft 


189S.16 


159-2 


0.67 




A" 


D 



Discovered with the 18 'i -inch. 

1(3 (xiii)...i33 (app.).../3 (3I4l).../3 (Puh. I.. O. ll)...Doo- 
litlle (Puh. Floxfer Ohsy. l) . . . ] 



General Catalogue of Double Stars 



P 1008. T| Ge/ni/ioru/n 



R.A. 6'' 7'" 38^ 
Decl. + 22° ^1' 



1882.05 


301.4 


0.96 3 . . 


. 8.8 


5'' 


/3 


1883.28 


300.2 


0.83 


. 10 


4« 


HI 


1886.34 


289.3 


0.89 


■ 9 


Vi 


Ho 


1887.17 


291.3 


1.05 




S" 


Sp 


1888.15 


291.7 


0.97 




S'l 


Sp 


1889.07 


289.7 


1. 01 




A'l 


Sp 


1889.14 


294.8 


1.04 


.10.5 


3" 


/3 


1890.93 


296.1 


1.08 


.10.7 


VI 


/8 


1893.22 


291.9 


0.99 




5« 


Sp 


1894.22 


289.7 


0.99 




2« 


Sp 


1896.22 


289.6 


1.05 




■211 


Sp 


1897.17 


291-5 


1.24 




111 


Sp 



Discovered with the 12-inch on Mt. Hamilton in 
1 88 1. The measures show slow retrograde motion. 
AuwERS gives the proper motion of this star o!'o69 
in the direction of 267?5, and obviously this is 
common to both components. 

In 1852 GiLLiss observed a double or peculiar 
occultation of this star (A.N. 813), which he explains 
as the temporary eclipse of the star by a projecting 
lunar mountain. Tatlock {Sid^ Mess., IV, 18) has 
shown that on another occasion the same observer 
saw this star occulted. 



[;S (xni). . .(33. . ./3 (2930,3048). . .Hough (297S 
Sp(m)...] 



P 566. Moiiocerotis 21 



.Hall (11) 



R.A. 6'' 8™ 41 = 
Decl. — 4° 32' 



1878.03 219.7 1.43 8. 5... 12. 5 \n /3 

1892.07 209.9 1-87 6. 5... 12. 5 yi /3 

Discovered with the 18^-inch. This star is 6m 
in L and S.D. Lalande 11916. 

[/3 (X). . ./3'. . ./3 (3141). . .^ (Pub. L. an)...] 



P 323- Lalande 11915 

R.A. b^ 8™ 44= ] 
Decl. — 1° 41' \ 



1876.17 


93-1 


2.17 


8.0. . 


. 9.0 


211 


HI 


1876.28 


96.3 


2-39 


8.5. 


. 10.2 


2)1 


J 



1878.05 


93-5 


2.16 


7.4. . 


. 9.0 


211 


Cin 


1888.18 


96.3 


2.13 


. . 




211 


Hi 


1S89.07 


96.9 


2.26 


8.0. . 


. 9.6 


yt 


Lv 



Discovered with the 6-inch. Without change. 
[/3(vi).../3(2o62)...z] (i)...Cin5...Lv'...Hl (i, n)...] 



P 193. 



W VI. 2C 



1892.04 90.2 
1898.84 91.3 



R.A. 6'^ q™ 95 ) 
Decl. -f 4° 0' ^ 

A and B 

17.88 8.0 ... I i.o 211 /8 
17.83 8.0. . . 12.0 m 13 

A and C 



1898.84 231. 1 58.55 
Discovered with the 6-inch. 



10.3 111 ji 



[/3 (iv)...;3 (Mon. Not. xxxiv, 382)... (3 {7,1^1)...^ {Pub. 
L.O.u)...] 



P 894. D.M. (19°) 1285 







R.A. 6^ g^ 27= ) 












Decl. +19° 3' 








I88I.I4 


1 38^0 


5.14 8.2.. 


.12.5 


211 


/8 


1898.15 


T33-8 


5.24 8 . 


. 12 


A,n 


D 



Discovered with the 18^ -inch. This star from 
the Berlin A. G. Catalogue has a proper motion 
of o!'o89 in the direction of 37^2. At the date 
of the last measure, in 1898, the companion if 
fixed should have been i52?9 : 5f79. It is there- 
fore certain that the two stars are moving together. 

[/3 (xiu). . .j33. . .Doolittle (Pub. Flower Obsy. l). . .] 



P 567. Monocerotis 23 



[879.08 249.5 
1892.00 246.8 



R.A. 6" 9" 34= ) 








Decl. —4° 53' \ 








3-83 6.8. 


. II. 


4« 


/? 


3-97 7-1 • 


. 10.9 


yi 


i8 



Discovered from i8']i to i8gg by S, W. Burnham 



n 



1590.10 242.4 
1898.86 245.2 



4.26 6.0. . . I i.o 2n D 

4.21 6.7 .. . 10.2 2« y8 



Discovered with the 18}^ -inch. Probably un- 
changed. In Lalande, Heis, and Argelander 
6m. Lalande 11949. 

[iS (x). . .(3'. . .j3 (3114). . ./3 {Pub. L. O. 11). . .Doolittle [Pub. 
Flower Obsy. l) . . . ] 



P IO18. Lalande iig6s 



R.A. b^ 10™ 7= 
Decl. — 2° 50' 



1882 6odz 5± 8.5. . . 12.0 y8 

1892.06 54.7 6.02 8. 5... II. 7 3« y8 

1899.02 53.6 5.92 9.0... II. 5 \n /3 

Discovered with the i8j^-inch. Probably fixed. 
[^ (XIII). . ./33 (app.). . ./3 (3114). . ./3 {Pub. L. C. 11). . .] 



P 96. 75 Orio7iis 
R.A. 6'' lo"" 29= \ 



1877.93 226.5 
1892.12 227.0 
1898.92 224.3 



eel. + 


9° 59' 








C ar 


d D 








// 
4-74 


9.0.. 


.11.5 


111 


/8 


5.10 


9.0.. 


.10.7 


2n 


^ 


4-79 


9.8. 


. 12.0 


\n 


^ 



A andC 



1892.12 159.5 119.90 6 
1898.79 159.2 119.32 

A and B 

o /y 

1892.12 255.5 62.88 

1898.79 256.0 62.83 



2>r /3 

\n f3 



10.2 2« y8 

I« (i 



The faint double companion was noted with the 
6-inch. AuwERS gives the proper motion of A 
o!'o6o in i9i?3. 

[P (II). . .^{Mon.Not. XXXIII, 437). . ./3'. . .;8 (:!i4i). . .p{Pub. 

/.ail)...] 



p 18. Lalande 12006 

R.A. 6*' 11"" 7^ / 
Decl. — 12" 0' ^ 



1876.00 


271.9 


1-79 


7-3- • 


. 9.0 


3« 


A 


1877.97 


273-5 


1-54 


7-5- - 


. 9.0 


m 


Cin 


1885.14 


276.9 


1.77 


7.0.. 


- 9-5 


m 


AV 


1886.52 


275-9 


1.68 


8.0. . 


• 9-0 


\n 


LM 


1892.93 


273-5 


1. 21 


8.0. . 


. 9.0 


\n 


J 



Discovered with the 6-inch. Apparently fixed. 

[iS (i). . ./3 (Afon. Not. XXXIII, 351). . .J (i). . .Cin<. . .Wilson 
(Cin'°). . .Jones (Proc. Haverford Coll. Obsy. 1892). . .] 



P 1019. S.D. (3°)i373 



R.A. 6'' ii" 26=^ 
Decl. — 3° 0' 



1882 2801+= irh 8.0. 
1892.06 274.2 0.81 8.0. 
1898.88 277.6 0.80 8.3. 



9-5 y3 

9.6 yi /? 

9.7 \n (i 



Discovered with the 18^ -inch. 
[i3 (xiii). . .^3 (app.). . .^ (3141). . .(3 [Pub. L. 0. 11). . .] 

P 895. W= VI. 287 



R.-A.. (i^ 12"" 23 
Decl. -\- 28° 29 



'[ 







A and B 








1873-9 


Elongation suspected in 250° with 6- 


inch 




n 


1875-9 


Appeared round with i8!^-inch 






/? 


1879.00 


Elongated 


'n 120°, i8J^-inch 






^ 


1879.22 


^ii-i 


0.27 7.5... 


7-5 


i« 


/8 


1887.17 


143-5 


0-2S± 




5" 


Sp 


1888.94 


150.9 


0.2 ± 




5" 


Sp 


I89I.I8 


144.6 


0.22 8.2. . . 


8-3 


3" 


p 


1891.78 


146.0 


0.2 I 8. 1 . . . 


8-3 


3" 


p 


1898.24 


1S5.S 


0-35 




in 


L 



1831.22 


246.2 


2.70 


1844.26 


247-9 


2-45 


1857.16 


250. 8 


2-77 


1869.83 


249.8 


2-95 


1879.22 


250-3 


2.83 


1888.94 


252.9 


2.69 


1S91.22 


250.2 


2.S7 



AB and C (= S 888) 



7-5 



9-2 


3" 


2 




ifi 


Ma 




in 


Se 


9-0 


4" 


J 


9-5 


in 


H 




211 


Sp 




2n 


/i 



78 



General Catalogue of Double Stars 



1898.28 250.0 
1898.59 251.8 



2.97 
2-73 



3« D 
2n L 



The duplicity of the principal star of 2 888 was 
suspected with the 6-inch, and verified five years 
later with the iS^/^-inch. Rapid motion would be 
expected in a pair of this class, and it may prove 
to be a binary of short period. The measures since 
1888 do not show very rapid change in the angle, 
but the distance at this time is probably about 
maximum, and one half or a whole revolution may 
have been described between 1879 ^"^ 18S7. Only 
the largest apertures will show any difference of 
magnitude in the components. In 1828 Herschel 
{Seve/ith Catalogue, Mem. R.A.S., xxxviii) noted, 
" the large star suspected to be a close double." 
This remark seems to have attracted no attention ; 
at all events, the close pair was missed by S and 
other observers who measured C. Ail the measures 
of this star are given above. There is evidently no 
change. 

[^(xiii).../33...^ (3ii4).../3 (Pub. L. O. n)...Sp (hi)... 
Lewis (Mon. Not. Lix, 400) . . . Madler (Fixite7-n-Systeme l) 
. . . Secchi (Cat. 1321 Stelle Doppie, 1859) . . . Uoolittle [Pub. 
flower Obsy. l) . . . 1 



P 1059. |i Gemhiorum 



1889.10 266.7 
1899.12 270.8 



R.A. h^ 15" 42=; 
Decl. -\- 22° 34' 

B and C 



0.80 9.8 .. . 10.7 yi /8 
0.68 10. o ... 1 1. o \ii A 

A and BC 



1809.10 141. o 122.49 3 
1899.08 141. 3 12T.71 



VI IS 
2n /3 



The duplicity of this distant companion to \x 
Ceminorumw^3.s discovered with the 36-inch. There 
are many faint stars less distant from A, one of 
which was measured by me, 76?6 : 72 '66 (1880.01) 
2)1. AuwERS gives the proper motion of the large 
star as 0^116 in the direction of 153^8 (^Funda- 
mental Catalogue^. With this movement the mini- 
mum distance of the double companion of 26^7 
will be reached in a little more than one thousand 
years. 
[|3(xv). . .^(2929). . .^(Piib. L. O. II). . ./33. . . Aitken ( ). . .] 



P 1020. W VI. 387 



R.A. 6'' 15"" 46^ 
Decl. + 28° 49' 



1891.22 158.5 
1898.12 159.5 



1.27 8.2 .. . 10.0 2« /3 

1.28 8.0 ... 10.7 211 A 



Discovered with the 18^-inch. 

[j3 (xill).../33(app.)... (3(3114)... (3 (/'«^. L. O. II)... Aitken 
( )■••] 



P97. 



Lalande 12260 



R.A. 6'> i8"> 29^ 
Decl. — I ° 21 ' 



1876.00 


257-8 


1-15 


7.2.. 


. 9.2 


3« 


J 


1877.97 


260.6 


1. 18 


6.5.- 


■ 8.5 


\n 


Cin 


1878.16 


81. 1 


r.09 


7-5-- 


• 8.5 


\n 


Cin 


1889.14 


260.9 


0-93 


7.2. . 


. 8.9 


2/1 


Lv 


I89S.I9 


260.7 


1.20 


7.0.. 


. 8.0 


3« 


D 



Discovered with the 6-inch. 



Without change. 



[(3 (11). . ./3 (Mon. Not. xxxill, 437). ..A (i). . .Cin". . .CinS. . 
Lv'. . . Doolittle (Pub. Flower Obsy. l). . .] 



P 568. Catiis Majoris 33 







R 


A. 6" 


18- 36^ \ 
19° 43' \ 












D 


eel. — 















II 










1878.16 


157-8 




0.67 


7.0. .. 


9.0 


171 


Cin 


1878.21 


155-1 




0.78 


7.0.. . 


7-3 


111 


/8 


1889.07 


148.3 




0.63 


7.0. .. 


7.8 


i" 


Lv 


1891.88 


154-2 




0.86 


7 -•- 


8 


11! 


Col 


1892.93 


156.1 




1.07 


7.0. .. 


8.0 


1)1 


J 


1898.24 


158.8 




0.58 






111 


See 



Discovered with the 185^ -inch. Probablv un- 
changed. The distance in the second measure, by 
an error in reducing, was printed i ^'35. It should 
be as given above. Lalande 12288. 

[/3 (x) . . . /3' . . . CinS . . . Lv' . . . Collins and Jones (Proc. Haver- 
ford Coll. Obsy., 1891, 1892) ... See ( ) . . . ] 



Discovered from iSji to i8gg by S. W. Burnham 



79 



p 1191. 



Lalande 12262 



1890.93 161.5 



R.A. 6" 19" 8= 
Decl. + 18" 50' 



1-33 7-0---I3-8 yi ^ 



Discovered with the 36-inch. The Bolin A G. 
Catalogue gives the proper motion of this star 
of205 in the direction of 222?2. If this is sub- 
stantially correct, another measure will show whether 
the components are moving together. If the com- 
panion is fixed in space, its position for 1898.9 
would be 9i?8 : i ^'5 i. 

[^ (XVII). . ./3 (3047). . -P {Pub. L. O. II). . .] 



P 569- Lalande i 2315 



R.A. 6'' 19™ 37* 
Decl. — 10° 52' 



1877.99 120.7 1-84 8. 2... 10.5 m (i 

1878.62 1 18.8 1.54 8.0... 10. 2 2ft Cin 

1886.89 115. 2 1.99 8.0... 9.7 211 LM 

1898.10 115.5 2.07 8.0...10.0 3« D 

Discovered with the 1854 -inch. Change uncer- 
tain. 

[iS (x).. .;8'...Cin5... L.M...Doo)ittle [Pk/j. Flower Obsy. 
I)...] 



P 1192. V Gcniiiwnmi 



1890.88 346.2 
1899.12 346.4 



R.A. 6'^ 21™ 50= ^ 








Decl. + 20° 17 \ 








B and C 








0.15 8.7... 


8.8 


y> 


^ 


0.20 9.0. . . 


9-5 


\n 


A 



A and BC (= OS (app.) 77) 



1876.02 


329.1 


112.54 


1890.86 


329-3 


I 12.69 


'895-53 


329-5 


I 12.87 


1899.08 


329.6 


I 12.7 I 



4.2. 



4-5 ■ 



8.0 



7-4 



J" 
211 fi 



The duplicity of the distant companion was dis- 
covered with the 36-inch. This star is Lalande 



12358. The principal star has a proper motion of 
o!'o3i5inthe direction of 25g?o (Auwers). All 
the measures of OS (app.) 77 are given above. 

The following positions are derived from merid- 
ian observations : 



1000 
1875 



329-7 
329-4 



1 1 1.20 
1 1 2.64 



Lalande 
A. G. C. 



The large telescope shows a number of faint stars 
nearer the primary than BC. The nearest is the 
only one seen with any difficulty. 



Aa 


1890.88 


358.0 


22.65 


--15 


3" 


/3 


Ab 


1890.87 


13-3 


53-90 


■-13-8 


2/1 


a 


Ac 


1890.87 


254-6 


56.76 


■ -12.5 


211 


a 


Ad 


1890.87 


II. 6 


92.13 


--13 


21! 


li 



[/3 (xvii).../3 (3047).../3 (Pub. L. O. n)...A (i)...Frani 
(3464).-.Aitken ( )...] 



P 570. I I Mo7iocerotis 

R.A. 6*^ 23™ oM 
Decl. — 6° 57' S 









A an 


J D 






1878.02 




56.1 




25-79 


5 ---T2.5 


in 


^ 


1898.90 


55-2 


A 


25-63 
and B ( 


-• -13-0 
= S 9'9) 


2/1 


P 


1831.23 


130.0 




7-25 


5-0. .. 5-5 


3« 


2 


1854.20 


131. 2 




7-33 




5" 


J 


1878.38 


131.2 




7-23 


5-7- -- 5-7 


5'^ 


s 


1898.96 


133-4 




7-44 


. . . 


in 


/3 



B and C 



2.46 


... 6.0 


y 


V 


2-53 




S" 


J 


2.76 


... 6.1 


5" 


Sp 


2-95 




I// 


/8 



1831.23 IOI.7 

1854.20 101.6 

1878.38 104.9 

1898.96 108.4 



The distant companion was noted with tl\e iSyi- 
inch. The principal star, according to Auwers, 
has a proper motion of ©.'076 in the direction of 
296?4, and obviouslv the two 2 companions are 
moving with it, as there has been no relative change 



8o 



General Catalogue of Doitble Stars 



in the last half century. A few onl}- of the measures 
are given. The triple is H' I. io= H' II. 17 =Sh 
71=2919. 

[^ (x). . ./3'. . .Madler {Fixstern-Systeme l) (JDorpat Obsns. x, 
XI, XIII, xv). . . Worster and Jacob {Madras Obsns. first 
series). . .Jacob {Mem. R. A. S. XVll). . .Secchi {Catalogo 
di 1321 Stelle Doppie) (Atti dell Accad. Pontif. de Nouvi 
Lincei, Anno vil ) . . . Obsns. at Ba7-day's Obsy. I . . . 
Wrottesley {Mem. R. A. S. xxix). . .Raddiffe Obsns. xxill 
. . . Powell {Mem. R. A. S. xxv) . . . Herschel {sth Catalogue 
Mem.R.A.S.Yl). . .A (10x5,1256). ..A{\,u)...A (Accad. 
Sci. i^/m.). ..Gledhill {Mem. R. A. S. XLll). . . Duner 
{Mestires Microm Lund, 1876) . . .Nobile {Rend, della Accad. 
Sci., Napoli, Nov. 1875) . . . riummer {Oxford Obsns, No. i) 
. . .CinS. . .Je (2346). . .Harvard Obsns. XIll. . .Hall (l, ll) 
. . .Seabroke {Mem. R. A. S. l). . .LM. . .Tarrant (2991) 
. . . Ha3'n (3051). . .Knorre (3300,3518). . .Glasenapp (ill) 
. . . Bryant {Mon. Not. LIX, 400) . . . Sold (3563) . . . ] 



P 753- ^ Canis Majoris 



R.A. b^ 23"^ 43= 
Decl. — 32° 30' 



1879.79 


40dz 


I.2zt 


5 


. . 8 




/? 


1892.14 


47.2 


1.29 


5-8 


.. 7.7 


3« 


/i 


1893.14 


37-3 


I. 16 


6 


. . 8 


211 


Sel 


1897.12 


38.2 


1.36 






3« 


A 


1898.19 


43-1 


I. 14 






\n 


See 



Discovered with the 6-inch at Mt. Hamilton in 
1879. Th.Q Second Washi?igton Catalogue gives iht 
proper motion, o'o88 in the direction of 27o?o. 
The components are evidently moving together. 

[^(XI).../3^..(3 {2,u\)...?{Pub.L. 0.1, II)... Sellers (3240) 
. . .Aitken (3465). . .See ( ). . .] 



P 896. Lalande 12414 

R.A. 6^ 23"" 48^ ) 
Decl. +32° 15' \ 

A and B 

O II 

1879.00 199.3 °-89 7.0...10.0 \?i (3 
A and C 



1879.56 210.8 18.44 
1899.05 210.0 18.18 



. 13.0 2;/ /3 
. 13.0 in (i 



Discovered with the i8j^-inch. In looking over 
my old observing books with the 6-inch recently 



I find that the close pair was suspected with that 
instrument three years before its independent dis- 
covery with the 1 83^ -inch. 

[^ (XIII)... ^3...] 



p 1021. W^ VI. 648 



R.A. 6'' 24"" 8= 
Decl. + 28° 28' 



882 


I20zt 


o.8± 


8.0. . 


. 9.0 




y8 


892.16 


86.0 


0.68 


8.1. . 


• 9-4 


2« 


Lv 


898.24 


77.0 


0.66 






I« 


L 



Discovered with the i8j^-inch. There may be 
some angular motion. 

[)3 (xill)...^3 (app.)...Lv {A.J. 278) {Proc. Haverford Coll. 
Obsy, 1892). . .Lewis {Mon. Not. Lix, 400). . .J 



P 98* Lalande 12564 



R.A. 6"^ 26" 46= \ 








Decl. — 


5°i5M 








// 
1.05 


8.3.. 


. 8.3 


VI 


J 


. . . 


8.0.. 


. 8.3 


2n 


Cin 


. . . 


8.0. . 


. 8.5 


in 


Cin 


0.88 


8 .. 


■ 8 + 


y 


D 



1876.09 140.8 

1877-97 135-9 
1878.12 135.5 

1898.14 142.6 

Discovered with the 6-inch. Without change. 

[/3 (11). ../3 {Mon. iVt)/. xxxill,437).. .A (i).. .Cin^.. .CinS.. 
Doolittle {Pub. Flower Obsy. i). . .] 



P 194- D.M.(38-) 1537 



R.A. 6^ 28" 4= 
Decl. +38° 5' 



1874.25 


283-5 


1± 


8.0.. 


- 8.5 


lU 


/? 


1875-43 


285.0 


0.91 


8.0.. 


- 8.5 


A,n 


J 


1880.55 


283.6 


o.9± 


8.0. . 


. 8.5 


3« 


Sp 


1883.90 


285-7 


1. 17 


8.2.. 


. 8.6 


-jn 


En 



Discovered with the 6-inch. No indication of 
change. 

[j3 (iv).../3 {Mon. Not. xxxiv, 382)... J (i)...Sp (n)... 
Engelmann (2678) . . . ] 



Discovered from iSji to i8gg by S. W. Burnham 



P 754' Lacaille 2350 



R.A. (i^ 30" 22^ 
Decl. -^33° 55' 



1879.79 2odz o.5iiz 6.5... 7.0 /3 

1892.14 22.8 ... ... i;z Lv 

1892.18 36.5 0.78 8.0... 8.2 2)1 /3 

1897.77 16.2 0.92 6.2... 7.5 \n See 

Discovered with the 6-inch on Mt. Hamilton in 
1879. Further measures are necessary to show 
whether or not there is any motion. There is a 
star II m, 40° : 25". The principal star in Lac. 
5^ m, Gould 7.0. 

[/3 (XI). . .(3^ . ./3 (3141). . .(3 {Pub. L. O. \,n)...l.w{A.J. 278) 
(Proc. Haverford Coll. Obsy. 1892). . .See (3495). . .] 



P 755- Ar^iis 34 

R.A. 6^ ji"- 14S ^ 
Decl. — 36° 41' \ 







A ar 


id B 








1879.79 




250zb 


i± 


6.0. . 


• 7-5 




/3 


1887.24 


253-1 


0.77 


6 . . 


■ 7 


in 


Pol 


I89I.II 


252.7 


0.91 


6 .. 


• 7 


\n 


Sel 


1897.17 


260.6 


1.09 


6.2.. 


. 9-8 


m 


See 



2n 


H = 


\n 


Pol 


111 


Sel 


1)1 


See 



AB and C (= H 3875) 

o /; 

1837.9 295dz 20zb 6 ...13 

1887.25 301.0 21.22 ...II 

1891.1 1 300.4 20.87 

1897.17 301.8 21.83 ...12.9 

The duplicity of the principal star of H 3875 
was discovered with the 6-inch at Mt. Hamilton in 
1879. Further observations will be necessary to 
show the nature of the relation. All the measures 
of the Herschel companion are given above. A 
naked-eye star in Argo. Lacaille 2359. 

[j3 (xi). . .jJ'. . .Herschel (Cape Otozj.). . .Russell {Mon. N^ot. 
XLVll, 473). . .Pollock {Mem. R. A. S. l) {Pub. Sydney 
Obsy. 1891). . .Sellers (3154)- ■ -See (3495)- • •] 





\ 


5571. W'Va. 956 










R.A. 6'^ 33"' 2^ [ 










Decl. +13° SM 






1877-95 




316.2 


II 
2.73 6.0. . . 12.0 


\7l 


P 


1886.22 


307-7 


2.88 


\n 


H2 



1892.10 317-9 
1899.08 322.4 



3.00 6.9 ... 1 1.2 3« (S 

2.49 7.0 . . . 13.0 2« ft 



Discovered with the 18^ -inch. In Heis 6-7 m ; 
D.M. 7.0. It is wanting in many of the star cata- 
logues where a star of this brightness should be 
found. 

[/3 (x). . ./3'. . .13 (3141). . .13 (Pub. Z. 0. 11). . .HS ( ). . .] 



P IQ- Lalande 12936 

R.A. 6^ 36"" 36= I 
Decl. — 15° S3' f 



1874.14 


169.4 


4.07 


7.2 


•- 9-5 


i« 


Kn 


1876.26 


165.0 


3-52 


6.7 


.. 9.0 


3« 


J 


1877.12 


164.5 


3.66 


7.0 


.. 9.0 


2« 


Gin 


1885.65 


168.7 


3-58 


7-5 


■■ 9-7 


2« 


W 


1887.95 


165.2 


3-54 


6.8 


.. 9.0 


2« 


T 


1888.12 


166.6 


3-70 


7-8 


.. 9.4 


3« 


Lv 


1888.86 


167.0 


3-65 


6.5 


- ■ 9-0 


2« 


T 


1898.16 


165.2 


3-92 






m 


See 



Discovered with the 6-inch. Apparently fixed. 

[(3 (i). . ./3 (Mon. Not. xxxill, 351). . .Knott (Mem. R. A. S. 
XLIII) ...A(\)... Cin*. . . Wilson (Cin'°) . . . Lv' . . . Tarrant 
(2899,2991)... See ( )...] 



P 195- O. Arg. S. 5539 



R.A. 6'' 37"" 26^ 
Decl. — 23° 7' 

A and B 



1877.13 217.6 

1892. iS 215.2 

1898.23 212.9 

1898.84 216.9 



6.05 
5-71 
5-97 
5-77 



7.0 ... I I. o 
7.1 . . .11.1 



7-5- 



A and C 



1892. IS 178.4 35.04 
1898.23 177.0 34.27 
1898.84 178.6 34.71 



in Gin 

4// Lv 

I n See 

10.5 \n (3 



12.0 If! Lv 

I // See 

II. 3 i;/ /3 



Discovered with the 6-inch. There is no materia! 
change. 

[/3 (IV). . .|3 (Mot:. Not. xxxiv, 382). . .Cin*. . .Lv (A.J. 278) 
(Proc. Haverford Coll. Obsy. 1 892) ... See ( ) . . . ] 



82 



General Catalogue of Double Stars 



P756 



R.A. 6^ 41'" 
Decl. + 39' 35' 



This 8 or 8J4 m star was suspected with the 
6-inrh on Mt. Hamilton in 1879 to be a very close 
pair. I could find no double in or near this place 
with the 36-inch, 1890.78. 

[/3 (XI). . .(3^ . ./3 (3048). . .(3 (,P„b. L. O. I, II). . .] 



P 20. Lalande 13170 







R.A. 6" 


43"" 25^ 


\ 










Decl. — 


16° 4' 


\ 






1876.42 




29.8 


// 
3.20 


7-7 


. . I I.I 


4« 


J 


1878.12 


29-3 


2-95 


8.0 


..10.5 


\n 


Cin 


I880.II 


34-6 


2-99 


7.8 


. . 10.8 


4« 


/8 


1886.13 


30.1 


3-70 


8.0 


. . I I.O 


\n 


LM 


1886.16 


30.6 


2.96 


8.0 


. . I I.O 


\n 


W 


1888.54 


34-5 


3.12 


8.0 


. . 10.6 


yi 


Lv 


1898.22 


31-3 


3-44 






\n 


See 


1899.09 


32-7 


3.12 


8.0 


. . 10. 


111 


/8 



The middle of three stars nf Sirius ; discovered 
with the 6-inch. The measures do not show any 
motion. 

[^ (l)...^ {Mon. Not. XXXIII, 351)... Zl (i).../33...Cin5... 
Lv'...LM... Wilson (Cin"») . . .See ( )...] 



P 1 1 93. 36 Gc minor iim 







R.A. 6'> 44"" 21^ ) 












Decl. -f 21° 54' \ 








1890.90 




355-0 


II 
10.81 5.7 . . 


•14-5 


3« 


/3 


1899.02 


354-7 


10.46 


. 14.0 


i« 


/3 



Discovered with the 36-inch. The Berliti A. G . 
Catalogue gives the proper motion of this star o f 043 
in the direction of 2o8?8. There is a 13 m star, 
I4?4 : 34-0. 

[^ (XVII). . .iS (3047) . . .^ {P"b. Z. O. 11). . .] 



P 897. Mo7iocerotis 97 



1879.14 30.9 
1892.00 32.0 
1898.84 31.8 



R.A. b^ 44" 42= 
Decl. — 0° 23' 



5.60 6.5 .. . 12.0 yi /? 
6.00 6.2 ... 1 1.4 3« /3 
5.74 6.0... 12. 5 



^ 



Discovered with the i8j^-inch. The principal 
star (Lalande 13 198) has a considerable proper 
motion : 



Stumpe 
Glasgow 2d 
Porter - 



0.182 in 170.5 
0.225 iri 180.0 
0.162 in 183.7 



The measures show that this is common to both 
components. 

[i3 (xill). . .;83. . ./3 (3114). . ./3 {Pub. L. O. II). . .] 



P 324- Lacaille 2462 







R.A. 6h 


44"" 45= 


\ 










Decl. — 


23° 56' 


\ 










■ A and B 








1877. II 




202.5 


1.88 


7-0. 


. 8.0 


2« 


Cin 


1889.04 


203-3 


1. 71 


7-1- 


. 8.4 


y 


Lv 


1892.93 


199.0 


1-74 


7-0. 


. 8.2 


in 


J 


1894.13 


208.3 


2.zb 


7 - 


■ 9 


\n 


Sel 


1898.14 


203.3 


2.60 






in 


See 


1898.14 


203-3 


1-93 
A.B and C 


7 - 
(=S53 


. 8 
7) 


yi 


D 


1825.16 


2 8i°9 


30.30 


7 ■ 


. 1 1 


yi 


South 


1898.14 


281. 1 


30.68 






m 


See 


1898.14 


281.8 


30-63 




• 9 


in 


D 






AB and D 








1898.14 



2.8 


28.26 






171 


See 


1898.14 


2.4 


30.27 




•13 


3« 


D 



The duplicity of the larger star of South's wide 
pair was discovered with the 6-inch. No change is 
apparent in any of the components. 

[/3 (vi)...j3 (2062). . .Cin*. .. Lv'. . .Jones {Proc. Haverford 
Coll. Obsy. 1892). . .Sellers (3303). . .See ( ). . .Doolittle 
{Pub. Flower Obsy. l) . . . ] 



Discovered from iSji to i8gg by S. W. Burnham 



83 



P 898. O. Arg. S. 5753 

R.A. 6'' 45"^ 0= } 
Decl. — 15° 53' 's 







A and B 








1879-75 




"356-2 


2-95 


7.8. 


.11.3 


5'i 


/? 


1886. II 


349-8 


3-23 


8 . 


. 1 1 


m 


LM 


1892.00 


357-5 


3-23 


8.0. 


- 9-5 


yt 


/3 


1898.22 


354-8 


3-40 






in 


See 


1899.02 


353-6 


3.01 
Car 


8.0. 
d D 


.10.5 


III 


/3 



1879.52 271.7 

1892.00 270.3 

1898.22 266.8 

1899.02 268.8 



1.54 9.8. . . 10.6 

1. 91 9.1. .. 9.3 
2.1 1 ... 

1.79 9.0 . . . 9.2 

A and C 



3« 


P 


3'^ 


/3 


m 


See 


in 


/3 



1879.69 283.1 96.50 

1892.00 282.1 96.77 

1898.22 282.1 96.49 

1898.84 282.5 97.26 



2n (3 

m See 
m /3 



A quadruple in the vicinity of Sirins; discovered 
with the 6-inch. Probably without change. 



[/3(.xni).../33...^ (3114) 
( )---] 



.(3 {Pub. L. O. ii)...LM...See 





li 


325. 0. 


Arg. S. 5814 










R.A. 6" 
Decl. — 


46-59= / 
26° 26' ) 






1877. II 




32.1 


2.05 


8.0 . . . 9.0 


I /I 


Cin 


1884.09 


37-0 


2.06 


9.0 . . . 10. 


\n 


W 


1897.84 


37-2 


1. 81 


7-5 ■ -- 9-6 


m 


See 


1898.10 


30-3 


1-79 


8+... 9 + 


I" 


D 



Discovered with the 6-inch ; the sf of a wide pair. 
Probably fixed. The magnitude in Cord. D.M. is 

7-7- 



{p (vi). . .j3 (2062).. .CiiT'. . .Wilson (Cin'°) 
Doolittle {Pub. FUnver Obsy. i). . . J 



■See (3495)- 



326. Lalande 13404 







R.A. 6'' 


49" ST- 1 












Decl. + 


2" 28' { 








1876.19 


63.0 


1.23 


8.0. . 


9.0 


2« 


HI 


1876.83 


62.8 


1-25 


8.0.. 


9-5 


2n 


J 


1882.21 


67.6 


1.20 


8.0. . 


9-5 


211 


Sp 


1886.22 


58.2 


1.47 






2fl 


H2 


1888.20 


65.8 


1.04 






2n 


HI 


1888.83 


64-5 


I-I3 


8.0. . 


9-2 


4« 


Lv 


1893.20 


60.5 


1.08 


8.0. . 


. 9.2 


in 


J 


1898.18 


56-4 


1-33 






m 


Br 



Discovered with the 6inch. No material change. 

[/3 (VI). . ./3 (2062). . .zl (I). . .Sp (11). . .Lv'. . .Hall (i, 11). . . 
OS {Poidko^va Obsns. x). . .HS ( ). . .Jones {A.J. 312) 
. . . Brown ( ) . - • ] 



p 899. W= VI. 1526 







R.A. 6*> 


52'" 9^ 












Decl. + 


18° 53' 












A and B 








1879.14 



261.4 


// 
0.68 


9.0.. 


. 9.0 


m 


fi 


1889.78 


263.9 


o.5± 






5" 


Sp 


1892.13 


268.0 


0.58 


8.7.. 


■ 9-3 


2n 


/3 


1896. 1 1 


265.1 


0.81 






m 


Lew 






AB and C 








1879.14 



174.2 


24.07 




. 10 


2n 


7? 


1892.13 


175-5 


24-33 




. 10 


2tl 


/? 


1899.08 


176.0 


24.10 




■ 9-2 


m 


^ 






AB and D 








1879.14 



48.1 


40.46 




. 9.0 


2// 


H 


1892.13 


47-8 


40.46 




. 9.0 


2n 


P 


1899. oS 


4S.1 


40.69 




. S.7 


Ml 


yS 



Discovered with the i8V.-incii. Ciiange in AB 
is probable. D is W VI. 1531. 

[(3 (xiii).../33.../3 (3i4i).../3 (Pub. L. O. 11). . .Sp (ill). . . 
lewis {Mou. Not. LIX, 400). . .] 



84 



General Catalogue of Double Stars 





p 


327. Lalande 13492 










R.A. 6h 


52" 28^ \ 












Decl. — 


2° 52' \ 












A and B 








1876.83 




100.8 


// 
0.96 


7-S- • 


8.0 


2« 


A 


1878.12 


96.8 


. . . 


8.0. . 


8.5 


m 


Cin 


1881.05 


96.1 


0.75 


7-S-- 


7-5 


\n 


^ 


1888.10 


96.1 


0-75 


8.0. . 


8.2 


2n 


Lv 


1888.22 


95-5 


0.84 


7-5- • 


8.0 


A,n 


T 


1892.08 


95-8 


0.79 


8.2.. 


8.2 


3« 


iS 


1893.45 


97-7 


0.64 






i^n 


Sp 


1898.20 


99.6 


0.63 






in 


Sp 


1899.09 


93-6 


0-59 
AB 


8.0. . 
and C 




\n 


^ 


1876.83 



102.6 


/; 
13.22 




II-5 


2« 


A 


1878.12 


99.4 






II. 


\n 


Cin 


1880.63 


100.2 


13.21 




1 1.2 


2n 


/3 


1888.22 


97.8 


13.72 




II-5 


4« 


T 


1892.10 


100. 


13.10 




II. 6 


2n 


/? 


1899.09 


98.9 


13-25 




I I.O 


in 


/? 



Discovered with the 6-inch. No material change. 

[|3 (vi)...(3 (2o62,3i4i)...|3 (^Pub. L. O. 11). . ./Ss. . .CinS. . . 
Lv'. . .Tarrant (2991). . .Sp (ill). . .] 





M 


000. Lalande 

R.A. 6h 52™ 38= 
Decl. + 3° 46' 


13491 

( 






1889.15 




58.3 


11 
3.01 7.0. 


. . 12.0 


2n 


/8 


1899.02 


59-3 


3.11 6.8. 


•■13-5 


in 


/? 



Discovered with the 36-inch. 

\P (XV). . .(3 (2929). . .(3 [Pub. L. O. II). . .] 

P 1022. W VI. 1557 



R.A. 6'' SS"" 155 
Decl. + 27° 26' 







A and B 








1883.19 



i6odz 


i±: 8.5.. 


. 8.5 




^ 


1899.02 


133-8 


0.48 8.5.. 


. 8.5 


m 


/3 



AB and C 

o « 

1899.02 196.3 31.35 



12.5 m /3 



Discovered with the iSj^-inch. There must be 
change in both angle and distance of the close pair. 

[/3(xni)...^3(app.)...] 



P 100. W VL 1620 



R.A. 6*' 54™ 14=^ 
Decl. -|- 12° 34' 



o . . . 10.8 yi A 

5 . . . 1 0.0 2n /3 

o. . . 10.4 2n Lv 

5 ... 1 1.0 m Col 

Fixed. 



[(3 (n)...i3 {Mon. Not. xxxni, 437). . .,33. . . /I (:)... Lv'... 
Collins {Proc. Haverford Coll. Obsy. 1892) {A.J. 278). . .] 



875-36 


258.1 


3-27 


7- 


880.63 


262.0 


3-14 


7- 


888.64 


258.8 


3-17 


8. 


892.13 


256.0 


2.92 


7- 


Discovered wi 


th the 6- 


inch. 



P 572. Lalande 13623 



R.A. b^ SS"" 245 
Decl. — 20° 28' 



1879.39 143-9 

1892.12 142.6 

1897.80 143.6 

1899.09 142.4 



5.07 7.2.. .11.0 in ft 

5.27 6.9... II. o 3« ft 

5.92 6 ... 10.7 m See 

5.13 7. 5... 10. 2 2n ft 



Discovered with the 18^ -inch. Probably un- 
changed. Many small stars in the field. 

[/3 (x).../3'.../33...|3 (3i4i)...j3 {Pub. L. O. 11 ) . . . See 
(3495)-. ■] 



P 573- Lalande 13642 



R.A. 
Decl. 



5h 55m ijs 
— 10° 42' 



1878.17 244.8 

1878.21 246.9 

1879.13 248.6 

1899.19 256.3 



0.82 

0-75 
0.74 



8.0. .. 

7-5- -- 
8.0.. . 



8.7 
8.0 
8.2 



2n 
m 
m 

2n 



Cin 
A 

i8 



Discovered with the i8>^-inch. This star is 
7.0 m in Radcliffe and S.D. 

[i3(x).../5".../33.../! (i)...Cin5...] 



Discovej'ed from iSyi to i8gg by S. W. Burnham 



P 900. Lalande 13688 



R.A. 6^ 58" 33^ ) 








Decl. +21" II ' \ 








i'!58 8.2.. 


.11.7 


2n 


13 


1.70 8.0. 


.11.5 


y 


/8 



1880.20 272 6 

1892.21 273.0 

Discovered with the 18^ -inch ; 40' n/ t, Gemi- 
noriim. Without material change. 

[/3 (XIII). . .^3. . .^ (3141). • -^ (/'«^'- L. O. II). . .] 



P 328. Cajiis Majoris i 39 



R.A. 7" I" ; 
Decl. — 11° ; 

A and B 



1875.70 
1878.17 
1879.13 
1880.44 
1887.18 
1891.15 
1892. II 
1892.23 
1893.23 
1899.26 



128.4 
127.8 
117. 8 
122.3 

1 16. 1 
1 16.4 
118. o 
115.8 

1 19.2 

132-3 



0-3 

0.48 
0.51 

0.42 

o.45± 
0.51 

o.5± 
o-5± 
0-43 



6.3. 
6.0. 
7.0. 
6.2. 



6.3. 



6.5 



7-5 
8.7 
8.5 
7-5 



7.6 



8.0 



4« 
2n 
m 

2« 
2;/ 

4« 

lU 
2« 
I« 



J 

Cin 

/3 

Sp 

Sp 

Sp 

^ 
Sp 
Sp 
i3 



AB and C (= S 1026 rej.) 



1879.13 
1892.04 
1899.26 



/8 
/3 



349.9 17.85 ... 9.0 iw 

348.9 17.45 ...10.4 3« 

350.3 17.40 ... in 

The large star of this wide pair was found to be 
a close double with the 6-inch. Motion is uncer- 
tain. This is a naked- eye star in Cain's Major, 
6 m in Argelander, Heis, and Pos. Med. Lalande 
13811. 

[(3 (vi). . ./3 (2062,3114). . .;33. . .(3 {Pub. L. O. \\)...A (i). . . 
CinS. . .Sp (11, II app., in). . .] 



P 1009. T Gcfniftorum 



74' Lalande 


3821 






R.A. t 


I™ 18^ 


I 






Decl. — 


11° 9' 


\ 






H 

1.76 


8.0. 


. . 12 


i;/ 


^ 


2.26 


8.1. 


. .11.4 


yi 


/3 


2.28 


8.0. 


..12.5 


m 


)8 



1878.04 306.7 
1892.04 311. 3 
1898.88 302.3 

Discovered with the 18^ -inch. 
[,3(x).../3'...i3(3ii4)...j3(/'«i. Z. 0. II)...] 



R.A. 7h 3'" 30= \ 
Decl. + 30^ 26' ^ 



1882.01 178.2 
1890.96 177.6 



1.87 
1-75 



. . 1 1.5 2n [i 
..13.2 4« fi 



This fine and difficult pair was discovered at Mt. 
Hamilton with the 12-inch in 1881. Auwers 
gives the proper motion, o.''o64 in the direction of 
222?i. The measures are sufficient to show from 
the common proper motion that this is a physical 
pair. If the small star was fixed in space its posi- 
tion angle would be diminished 13° in the interval 
1882-1890. 

{§ (XIII). . .^3. . ,p (3048). . ./3 {Pub. L. an)...] 



P 329. Cmiis Majoris 146 







R.A. 7'' 


4"" 9' 












Decl. — 


16° 2' \ 













U 










1880.67 


97.6 


29.52 


6.4.. 


.11.7 


in 


(i 


1892.12 


96.8 


29.84 


6.2. . 


.11.5 


3« 


P 


1898.16 


96.5 


30.02 






m 


See 


1898.80 


97-3 


29.78 


6.2. 


. I I.O 


2/1 


/? 



Distant companion noted with 6-inch. A naked- 
eye star (Lalande 13928); Heis 6m; S.D. 7.2; 
Cord. 6.6. See notes a nearer star, 14.8 m, 
110° : 6^5, which I could not see on the occasion of 
the last measures with the 40-inch. 

[/3(vi)...(3 (20b2,M4\) ...pK..^{Pub. L. 0. 11). ..See 
( )•••] 



P 1279. S.D. (3 = ) 1773 



R.A. 7^ 
Decl. - 



1899.23 10.4 i.o; 



4" 26^ \ 

3° 54' \ 



9.0. 



9-3 



This was noted with the iS'/^-inch on December 
16, 1878, but forgotten subsequently, and not meas- 
ured or included in my catalogues of that time. 
A recent examination of my old observing book 
led to its recoverv with the 40-inch. This instru- 
ment shows a 13 m star, 349^8 : i4.'2. 



86 



General Catalogue of Double Stars 





p 


196. W VII. 142 






' 




R.A. t 


6™ 27^ \ 
5° 14' S 










Decl. — 






1876.83 


i86!7 


;; 

3-52 


lO.O. . . I I.O 


\n 


J 


1879.22 


189.9 


. . . 


8.5 .. . 10. 


\n 


Cin 


1880.22 


189.7 


3-33 


9.5. ..II.O 


\n 


/3 


1882.12 


191. 1 


2.92 


9.0 . . . I 1.0 


\>i 


W 


1899.09 


189.8 


3.26 


9.0. . . 10. 


\n 


/3 



Discovered with the 6-inch. The /one of three 
stars in the field. 

[/3 (iv). . ./3 [Mon. A^o/. XXXIV, 382). ..A (i) . . .CinS. . .Wilson 
(Cin-)...] 



P 197' Lalande 14026 



R.A. 7" 7" 



Decl. 



6° 57' 



1876.86 147.0 2.28 7. 7... 10. 2 2« J 

1879.22 148.2 1.92 8.0... 9.5 \ri Cin 

1886.94 144.8 2.21 8.0... 9.3 \n LM 

1888.10 147.8 2.17 8.1... 9.4 yi Lv 

Discovered with the 6-inch. Without change. 

[/3 (IV). . ./3 [Mon. Not. xxxiv, 382). ..A (i). . .CinS. . .LM. . , 
Lv'...] 



P 1023. U.M. (26°) 1498 







R.A. 7'' 


7- 45= ) 












Decl. + 


26° s' \ 








1882 




3io± 


0.3 + 


8.5.. 


• 8.5 




IS 


1891.23 


294.0 


0.25 


8.4.. 


. 8.5 


3« 


/3 


1898.27 


294.6 


0.38 


8.3.. 


. 8.6 


\n 


A 



This star was suspected with the 18^-inch to be 
a close pair in 1882, and subsequently verified and 
measured with the 36-inch. 

[/3 (xin).../33 (app.).../3 (3ii4)...|3 (Fu/>. L. O. !i)...Aitken 
( )•••] 

P 757. Argils 101 



1879.79 
1881.18 



6o±; 
65.8 



R.A. 7'' 


8"- 10= { 








Decl. — 


36° 21- \ 








If 

i-5± 


6.0. . 


- 7-5 


in 


(i 


2.21 






m 


Pt 



1887.23 67.7 
1893.15 62.6 

1897.20 69.2 



2.57 6.5 .. . 8.0 2« Pol 

2.66 7 ... 9 2« Sel 
3.06 6.3. . . 11.8 2n See 



Discovered with the 6-inch on Mt. Hamilton in 
1879. This is a naked-eye star in Argo. Lacaille 
2628. There would appear to be some change, but 
this needs confirmation. There is a wide difference 
in the magnitudes assigned to the smaller star. 

[/3 (xi). . ./S^. . .Pritchett {Pub. Morrison Obsy. No. l). . .Rus- 
sell [Mon. Not. XLVii, 473). . .Pollock {Pub. Sydney Obsy. 
189 1 ) {Mem.R.A.S. L). . .Sailors (3240). . .See (349S). . .] 



p 1268. 24 Monocerotis 



R.A. 7'' 9"' 11^ 
Decl. +0° 3' 



1892.21 


313-2 


3.81 


6.0. 


.11.8 


4;/ 


13 


1898.94 


310.6 


3-9° 


6.0. 


.13.0 


2>l 


A 


1899. II 


309-9 


3-85 






2tL 


Hu 



This is one of the rejected stars (02 169) of the 
Poulkowa Catalogue. In the edition of 1850 it was 
given as " oblong ? " the direction of the suspected 
elongation being roughly measured on two occa- 
sions 199° and 204°. Madler has two observations 
{Dorpat Observations XI, XIII), 26?4 : ofs (1843.28) 
and 22?2:or35 (1846.24). Subsequently Dem- 
BOWSKi {Measures, Vol. I. 228) thought it might be 
elongated in 148°, but very uncertain. In 1873 I 
had a faint suspicion of a slight elongation in 
310°, but it was very doubtful in 1874. It was 
finally rejected as single by Otto Struve, and is 
probably not a close pair. It was certainly round 
in 1892 with all powers on the 36-inch. In the 
course of this examination I found the faint com- 
panion given above. It is not probable that 
this has anything to do with the early observations 
previously mentioned. The faintness of this star is 
a sufficient explanation of the failures to see it with 
other telescopes. 

A'UWERS gives for the proper motion of this star, 
ofo3i in the direction of 284?9. The measures do 
not cover a sufficient time to show with certainty 
whether the small star shares in this movement. 



[/3 (XIX)... /3 (3141).. 
Hussey ( ) . • • ] 



(Pub. Z. C II) 



, Ailken 



Discovered from i8jr to i8gg by S. W. Burnham 



87 



P 575- Canis Majoris 156 



R-A. 7!^ g-" 21^ 
Decl. — 15° 16' 







A and B 








1878.18 


199.2 


0.69 


8.0. 


. 8.0 


2« 


P 


1878.17 


195-3 




7.8. 


. 8.2 


yi 


Cin 


1889.15 


199.9 


0.70 


8.0. 


. 8.0 


i« 


Lv 


1898.29 


220.8 


0.34 






m 


See 


1899.19 


216.0 


0.64 






m 


A 



AB and C (-= S 1057) 



1831.20 


1.9 


15.28 


7-3- 


. 9-8 


yi 


2 


1845-20 


1.9 


16.10 






in 


Ma 


1867.99 


1-5 


15-50 


7.0. 


. 9-8 


yi 


J 


1878.10 


2.1 


15-87 






211 


i8 


1898.29 


2.4 


15-74 


. 




\n 


See 



The duplicity of the principal star of 2 1057 was 
discovered with the i8j^-inch. 

There is no sensible change in the distant star, 
C. All the measures are given. Lalande 141 14. 



[/3 (x).../3'-.-CinS...Lv'-..See ( 
Sysleme l) - . . Zl (ll) . . . Aitken ( 



). . . Madler [Fixstern- 



P 330. D.M. (—0°) 1680 



R.A. 7'^ 13"' 27^ 
Decl. — 0° 41 ' 



1876.87 218.0 

1878.12 211. 7 

1886.84 213.5 

1888.42 215.6 



1.28 
1.22 
1.25 
1.23 



8.7.. .10-5 
8.5.. . 9.0 



8.5. 
8.0. 



9.0 
9-5 



2/1 d 

in Cin 

ui LM 

2// Lv 



Discovered with the 6-inch, 
change. 

[/3(vi)...(3(2o62)...J (i),..Cin5.-. 



Probably without 
/■-..LM.--] 



P 901. 65 Aiirigae 



R.A. 7'' 14'" !'■ 
Decl. 4- 36° 59' 







A and B 








1879.31 




7-9 


10.56 5.8. 


.12.3 


3'^ 


/3 


1881.29 


8.5 


11.06 5.0. 


.11.5 


in 


OS 



1888.77 


9-3 


1 1. 16 




4" 


H 


1 89 1. 18 


9-1 


II. 14 


■ 11-5 


VI 


ft 


1898.08 


7-5 


10. go 6.0 - 
A and C 


. 12.2 


2H 


ft 


1879.51 


26^8 


36-05 


..12.7 


211 


ft 


1898.08 


30.3 


37-76 


..12.7 


2H 


ft 



Discovered with the 18^2 -inch. Auvvers assigns to 
this star a proper motion of o".og-j in the direction 
of 264?7. With the position of B in 1879, ^"d 
this annual movement of A, the companion, if 
fixed in space, should be i7?i : iifia for 1898. 
It is therefore very probable that it is moving with 
the principal star, while the more distant compan- 
ion is fixed. 

[/S (xill). . ./33. . ./3 (3114). . .^{Pub. L. O. II). . -OS (Poidkowa 
0bsns.x)...Yi'2,( ).--] 



P 577- Piazzi VII. 53 

R.A. 7'' 14™ 21' } 
Decl. + 0° 38' ^ 







AB and C 








1892.19 




100.0 


12.75 




13-5 


2« 


ft 


1895.19 


106.1 


14-15 






m 


Lew 


1896.25 


103-5 


13-77 




13.2 


in 


Lew 


1899.08 


97-9 


12.42 
AB an 


d D 


13-3 


3« 


ft 


1878.21 




9-9 


14-54 




13 


in 


ft 


1892.19 


10.6 


15-31 




13 


2n 


ft 


1897.27 


10.7 


15-17 






III 


A 


1899.09 


10.8 


15-25 
AB an 


d E 


13 


1)1 


ft 


1892.18 


278^0 


53-62 




10.8 


V> 


ft 


1897.27 


278.2 


54-oS 






in 


A 




A 


and B (= 


-- S 1074 


) 






1831-54 




115-4 


0.48 


7.8.. 


8.2 


3" 


2 


1869.90 


139-4 


0.62 






3" 


02 


1882.89 


141-5 


O-64 


7.7. . 


8.1 


bn 


En 


1888.73 


139.6 


0.82 


7.8.. 


S.o 


V 


Lv 


1S92.18 


142.7 


0-55 


8.1. . 


8.3 


y 


ft 


1895.19 


137-4 


0.58 






2n 


Lew 


1896.25 


133-8 


0.68 






\n 


Lew 


1897.29 


139-7 


0.S6 


8 ... 


8+ 


4" 


A 



88 



General Catalogue of Double Stars 



The distant star, D, was noted with the 1 8^ -inch, 
and the fainter and nearer star, C, added with the 
36-inch. The close pair is probably in slow mo- 
tion, although there has been but little change in 
the last twenty years. Only a few of the measures 
of this are given. The complete observations will 
be found in the references given below. 

[/3 (x).../3'.../3 (3141)...^ {P«*. L. O. II)...Aitken {A.J. 
429) (3465). . .Lewis {Mon. Not. Liv, 314 ; LVI, 359 ; Lix, 
400) {Greemuich Obsns. 1895) {Observatory xix, 118) 
...Lewis ( )...Madler {Dorpat Obsns. xi, xni, xv) 
{Fixstertt-Sy Sterne l). . .OS [Poulkowa Obsns. ix) . . .Her- 
schel {Mem. R. A. S. xxxvni). . .Wilson and Seabroke 
{Mem. R. A. S. XLll, XLVI, l). . .Gledhill {Mem. R. A. S. 
XLII) . . . A7inals Harvard Obsy. xill . . . P'lammarion {Etoiles 
Doubles et Multiples). . .Pritchett {Pzib. Morrison Obsy. l) 
. ..A (1474). . .A (n). . .Sp (11, n app.). . .Doberck (2307) 
...Engelmann (2678). . . Hussey {A.J. 427). . . Lv'. . . 
Bigourdan {Bull. Ast. xviii). . .] 



P 331- Cord. (— 24") 521 1 



1877.13 115. 9 
1889.15 114. 7 

1894.14 115. 4 



R.A. 7^ 15m 2^ 
Decl. — 24° 12' 



2.04 8.2 . . . 9.0 2« Cin 
1.93 8.2 . . . 8.9 2n Lv 
1.75 8 ... 9 m Sel 



Discovered with the 6-inch. It is n and a little 
/29 Ca/iis Majoris. Probably without change. 

[/3 (vi).../3 (2062). .. ain't.. .Lv". ..Sellers (3303). . .] 
P 1024. D.M. (29°) 1520 



R.A. ^^ 15" 33= 
Decl. 4" 29° 32' 



1882 iio±: i± 9.0. ..II (i 

1892.26 103.2 1.40 9.0... II. 5 m /3 

Discovered with the i8i^-inch. Further meas- 
ures are needed. 

[/3 (xill). . .^3 (app.). . .^ (3141). . .;3 {Fub. L. O. 11). . .] 



P 758. Lyncis 51 

R.A. 7'> 19™ 55=^ \ 
Decl. + 48" 26' \ 



1883.75 94.2 16.92 6. 2... 10. 2 6« En 



1892.14 93.1 
189879 91.4 



16.56 6.0. . . I I.I 3« /3 
16.58 6.7 ... 1 1. o \n /3 



Discovered with the 6-inch. The magnitude in 
D.M. is 6.0. Unchanged. Lalande 14402. 

[/3 {X[)...^...I3 (3i4i).../3 {Fub. L. O. 11). . .Engelmann 
(2678)...] 





p 


199. Lalande i 


4480 










R.A. 7h 


igm 57s 












Decl. - 


20° 56' 








1870.12 




19.4 


// 
1.72 


7-5- 


.. 8.5 


\n 


Hd 


1877-15 


20.3 


1.90 


7.2. 


.. 8.2 


2« 


Cin 


1889.12 


21.6 


1.84 


7.6. 


.. 8.2 


4« 


Lv 


1892.10 


23.2 


1.63 






in 


Lv 


1893.19 


23.1 


1.74 


7 ■ 


.. 8 


2// 


Sel 


1896.03 


24.7 


. . . 






in 


Do 


1898.15 


20.7 


1. 71 


8 . 


.. 9 


\n 


Ho 



AB and C (= Ho 522) 

o ;/ 

1898.15 120.2 6.10 -.-13 I« Ho 

Discovered with' the 6-inch. Probably fixed. 
The faint star discovered by Hough with the 185^- 
inch. 

[/3 (iv). . ./3 {Mon. Not. xxxiv, 382). . .Cin*. . .Lv'. . .Annals 
Harvard Obsy. XIll . . . Lv {A. J. 278) {Froc. Haverford 
Coll. Obsy. 1892). ..Sellors (3240). . .Doberck (3378)... 
Hough (3557)...] 



P 198, Lalande 14503 



R.A. 7'' 20"" 38= 
Decl. — 20° 43' 



1870.12 211. 9 

1877.12 214.2 

1898.19 212.9 

1898.26 213.6 



red. Found independently at Cambridge. With- 
out change. The 4" pair of 85^ m stars 40^/ and 
4'i- is H 3964. 

[/3 (iv). . ./3 {Mott. Not. XXXIV, 382) . . .Annals Harvard Obsy. 
xin...See ( )...Aitken( )...] 



5-72 


8 . 


•• 9-5 


i« 


Hd 


5-97 


8.0. 


..10.5 


271 


Cin 


5-71 


. 




m 


See 


5-70 


8.0. 


..10.8 


yt 


A 


he 6 


inch. 


The larger 


star is; 



Discovered from 18"] i to i8gg by S. W. Burnham 



89 



P 21. y\ Canis Minoris 







R.A. 7" 


2im 35s 












Decl. + 


7° II' 








1875-39 




27.4 


4.09 


5-5- 


.11.3 


3« 


J 


1877.23 


22.7 


3-79 


6 . 


.10.5 


i?i 


02 


1886.28 


23.6 


4.01 






m 


H2 


1891.96 


25.8 


3-99 


5-7- 


.11.2 


yi 


^ 


1898.12 


24-3 


4-33 


6 . 


. 11 


2« 


A 


1898.25 


28.2 


4.04 






2« 


L 



Discovered with the 6-inch. Probably without 
change. The proper motion of the principal star 
is 0^022 in the direction of 2i6?7 (Auwers). If 
the smal] star was fixed in space, the movement 
would increase the distance o. "5 in the time cov- 
ered by the measures. 

[/3 (I). . ./3 {Mon. Not. xxxiii, 351). . ./3 (3114). . .^ (Pub. L. 0. 
n)...A (i)...OS {Poulkowa Obsns. x)... Lewis (Mon. 
A'o/. Lix, 400)...Aitken ( )...HS( )...] 



P 578. Lalande 14545 



R.A. "j^ 21™ 47= 
Decl. — 17° 37' 



1878.17 


52.4 




6.0. 


. . 12.0 


2« 


Cin 


1878.20 


53-6 


2.44 


6.5- 


. .11.8 


m 


/3 


1878.22 


50.6 


2.51 


7-5- 


. .10.5 


\n 


J 


1886.16 


48.7 


2-33 


7-7- 


. .10.7 


211 


W 


1898.21 


46.8 


2.29 






\n 


See 


1898.26 


46.4 


2.26 


6.3. 


. . 10.9 


3« 


A 



Discovered with the 18^-inch. Very little, if 
any, change. The distance in my measure of 1878 
is erroneously given in ;8' as i f 72. This is a 
naked-eye star in Argo; S.D. 6.0 m. 



[/3 (x)...i3'...zl (l)...Cin5... Wilson (Cin'°). 
Aitken ( ). . .] 



P 332. Piazzi VII. 116 



.See ( 



R.A. 7'! 22"" 13= 
Decl. — 11° 19' 







A and B 








1875-52 


166^3 


0.80 


6.3-. 


. 8.2 


3« 


J 


1878.19 


168.2 


o.go 


6.4.. 


. 8.2 


2 71 


Cin 


1880.65 


169.1 


1.07 


6.3.. 


. 8.2 


7« 


Sp 


1887.15 


165.8 


0.89 


6.3-- 


. 8.2 


bn 


T 



1887.18 


165.9 


0.86 




2« 


Sp 


1892.04 


168.7 


0.85 6.8. 
AB and D 


. 8.1 


yi 


^ 


1878.10 


157-2 


23.41 


. 9-8 


2 71 


/3 


1892.10 


157-8 


23-32 


. I I.O 


271 


^ 


1899.05 


156.8 


23.08 

AB and E 


. I I.O 


171 


/3 



1878.16 41.4 31.06 
1S92.IO 42.8 32.21 

1899.05 43.0 32.28 



..12.5 



12 



2;; /3 

171 /3 



AB and C (= 2 1097) 



1832.15 312.1 20.20 
1847-23 3^3-3 20.01 
1868.63 312.8 20.00 

1878.16 313.5 20.21 
1880.21 312.7 20.02 
1887.15 314.5 20.66 

1892.04 312.7 19.88 

1899.05 313.4 19.84 



6.5 
6.0 



8.7 

8.9 

8.9 
8.9 
9.0 



2 77 
171 

4" 
171 
471 

6« 



2 

Ma 

J 

/3 

Sp 

T 

IS 



The duplicity of the principal star of 2 1097 was 
discovered with the 6-inch. It was suspected by J 
when measuring the 2 star in 1865. Thus far 
there is no certain change in the close pair. The 
small star D is mentioned by H in his Seco7i(i Cata- 
logue. All the measures of the small stars and the 
2 companion are given above. The latter is cer- 
tainly fixed. The 18^/2 -inch shows a faint star 
about 12" from C in the direction of 305°. 

The principal star (B.A.C. 2470 = Lalande 1455 1) 
is a naked-eye star; Argel.'\nder and Heis 6m, 
and placed in Mo7ioceros. This star is variable 6.1 
to 6.8 in about 14 davs ; discovered by Espin in 
1883 {Mon. Not. XLiii, 432) {Observatory xi, 192). 

[)3 (vi). . ./3 (2062,3141). . .|3'. . ./3 (Am. Jour. Set. April 1S75) 
...^(Pub. L. an)... J (ii)...Sp(ii, II app.)...CinS... 
Tarrant (2899). . .'!s\.a.d\^r (Fixsterit-SysU-meu) . . . Herschel 
{Mer/t. R. A. S. Ill, ix) . . . Radcliffe Obsns. xxill . . . ] 

P 1194. 65 Gc»ii/i07'ii>n 







R..\. 7" 


22". 21* 










Decl. -f 


28 


= 10' \ 






1890.88 


2 89°5 


13-91 




5.5 ■ ■ 


.14.0 


3" 


1898.90 


2S8.2 


'3-33 




5.0. 


.14--' 


3" 


IS99.02 


28S.8 


13-23 






■13-5 


\7I 



QO 



General Catalogue of Dotible Stars 



Discovered with the 36-inch. The proper mo- 
tion, from AuwERS, is o!'o34 in the direction of 
238?3- 
LiS (xvn)...i3 (3047)...|3{/'«^ Z. O. ii)...Aitken ( )...] 

P 22. W VII. 689 



R.A. 7'' 25" 30' 
Decl. +33° 7' 



1875.32 149.5 
1880.68 151. 7 
1890.91 150.4 



6.48 8.0 ... 1 1. o 4« J 
6.14 8.2 . . . 10.4 4« /3 
6.42 8.3 . . . 10. o yi P 



Discovered with the 6-inch. P'ixed. 

[/3 (i)...^ {Mon. Not. XXXIII, 351)... /3 (3048).. .^{Piib.L.O. 
n)...] 



P 579- W^ VII. 726 



R.A. 7'' 26™ 40' 
Decl. + 33° 23' 

A and B 



i«78. 
1886. 
1890. 
1898. 
1898. 



1843 
1869, 
1880. 
1886, 
1898. 
1898. 
1899. 



24 

31 
90 
1 1 
24 



219. 1 
219.6 
213.9 

214.2 
230.0 



o.«4 
1.07 
0.90 
I.I 2 
1.07 



7.2 
7-9 



"•5 



. 10. o 



\n 


a 


Ml 


H2 


3« 


a 


\>i 


D 


in 


L 



A and C (— OS 173 rej.) 



27. 234.1 
76 233.6 
15 234.0 
233-0 
233-1 
231-3 
234.6 



18.23 
18.94 
19. 1 1 
18.52 
16.72 
18.94 





I /I 


Ma 


12.0 


in 


J 


10.9 


2>l 


^ 




1)1 


H2 




2)1 


D 




111 


L 


"-5 


III 


/8 



1867.90 347.3 

1880.15 349.7 

1886.31 347.7 

1898. II 347.7 

1899.08 348.7 



43 
43 
43 
43 
43 



A and D 

09 
06 



41 
44 
80 



9.0 
8.5 



V 
\n 
111 

2)1 

\)i 



J 
D 



The duplicity of the principal star of 02 173;-^'. 
was suspected with the 6-inch in 1875, ^"d verified 
subsequently with the i8)^-inch. The OS pairwas 
rejected in the second edition of the Poiiikoii'a 



Catalogue by reason of the distance of the com- 
panions. All the measures of these stars are given. 

[^ (x). . ./3'. . .,33. . ./3 (3048). . .i3 [Ptib.L. O.n). ..A (I, p. 157) 
...Doolittle {^Pub. Flower Obsy. l)... Lewis {Mon. Not. 
Lix, 400) . . . Madler {Dorpat Obsns. xi) . . . ] 



P 200. 70 Geminorum 

R.A. 7"^ so"" 40= 
Decl. -f 35° 19' 

C and D 



1876.02 
1880.11 
1892.06 
1898.96 



I6SO.09 
1892. 10 
1808.96 



241.8 
241.8 
242.2 
244.2 



206.6 

203.3 
207.2 



1-49 
1.42 

1-74 
1.82 



10. o. . . I i.o 
9.0. . . 10. o 



9-3- 
9-5- 



10. 1 
II. 5 



2n A 

yi /3 

3« ^ 

m 13 



C and E 



17.20 
17.48 
17-74 



.13.0 


I« 


P 


-13-5 


2n 


/8 


.13.0 


1)1 


iS 



A and B (= H' VI. 70) 



1876.78 


190.0 


98.43 


. 


. 11 





1)1 


J 


1892.04 


190.0 


98,94 




. 10 


2 


2)1 


)8 


1898.79 


190.6 


99-23 

A ar 


dC 


. 10 


5 


2n 


/8 


1876.02 


98^7 


162.02 


5-0. 






2)1 


J 


1880.15 


100.7 


160.47 








2)1 


/3 


1892.04 


98-5 


161.46 








2)1 


/8 


1898.79 


98.8 


160.66 




• 9-7 


2)1 


/8 



The distant stars, B and C, were noted by H', 
and given without measures. The duplicity of C 
was discovered with the 6-inch. The above are all 
the measures of the several companions. Auwers 
gives the proper motion of A 0^029 in the direction 
of 35-5- 

[)3(iv). . .(3 {AIon.Nof.xxxw, 382). . .^3. . .^ (3114). . ,^(Pub. 
Z. aii)...zl(i)...] 





li 


201. Lalande- 


4945 










R.A. 7" 
Decl. — 


33" 42= 
20° 0' 


( 






1876.41 


330-6 


2.89 


8.0. 


.. 8.5 


in 


A 


1878,05 


329.0 


2.82 


7.4. 


. . S.o 


2)1 


Gin 


1880.16 


330.8 


2-79 


7-0. 


. . 8.0 


III 


Cin 



Discovered from iSji to i8gg by S. W. Burn ham 



91 



1883.14 


330-7 


3.21 


8.0. 


.- 8.3 


211 


W 


1886.20 


331-0 


2.80 


7-0. 


. . 8.0 


xn 


LM 


1889.02 


331-1 


2.84 


7.8. 


..8.1 


in 


Lv 


1898.10 


332-9 


2.78 


7 • 


.. 8 


2« 


Sc 


1898.16 


332.6 


3-46 






\7l 


See 



Discovered with the 6-inch. 



Evidently fixed. 
. .& (l).. .Cin5. . .Cin* 



[/3 (iv)...;3 {Mon. Not. xxxiv, 382) 

. . . Wilson (Cin'°) . . . LM . . . Lv" . . . Scott (A/o«. Not. Lix, 
427)...See( )...] 



p 1 061. K Argus 



R.A. t 33"" 54' 
Decl. — 26^ 32' 







B and C 








IS89.I2 


229.3 


// 
6.46 


, 


..13-8 


3« 


/8 


1898.27 


228.6 


6.25 






\n 


See 


1898.27 


228.0 


6.87 


4 • 


• -14-5 


2)1 


A 



A and B (= H- IIL 27) 



1826.5 


315-8 


8.76 


6^ 


.. 6>^ 




Dunlop 


1836.67 


317-8 


10.41 


5 


■• 5 


3« 


H = 


1878.20 


318.4 . 


9.96 


5-0 


.. 5.0 


\fi 


Cin 


1882.10 


318.2 


10.13 


4-3 


.. 4.7 


2n 


Wilson 


1889.12 


318.5 


9.98 


4- I 


. . 4.1 


yi 


/? 


1898.27 


318. 1 


9.72 


4 + 


•■ 4+ 


2)1 


A 



The minute star was discovered with the 36-inch. 
The bright star has no sensible proper motion. 

[/S (xv). . ./3 (2929). . ./3 (Pub. L. O. II). . .See ( ). . .Aitken 
( )•-•] 

The bright stars which make H' III. 27 appear 
to be relatively fixed. Some of the measures are 
given. All will be found in the following: 

[Dunlop {Mem. R. A. S. III). . .lierschel {Cape Obstis.). . . 
Powell {Me>?i. R. A. S. xxv). . .Jacob {Mem. R. A. S. xvii). . . 
Worster and Jacob {Madras Obsns. 2d Series). . .Secchi {Cata- 
logo di 1^21 Stelle Doppie) {Atti dell Accad. Font, de Nuovi 
Lincei, Anno vu) . . . Radcliffe Obs>is. xxill .. .CinS ... Wilson 
(Cin'°)...] 

P 580. p Gc/ni>ioriim (Pollux) 

R.A. 7" 37'" 58^ [ 
Decl. -4- 28° 19' \ 



1878.10 128.0 
1889.14 130.9 



C and D 








1.40 TO . 


. 12.5 


2)1 


P 


1.14 9.5. 


. 12.5 


\)l 


(i 



1892.14 130.6 

1898.89 131. 2 
1899.02 140.7 



1880.22 275.3 

1892.14 277.9 

1898.88 280.0 

1898.96 278.1 



1. 14 


10 . 


.11.8 


y 


fi 


1.27 


10. 0. 


.13.0 


\n 


A 


1.02 


9.7. 


.11.5 


ifi 


/? 


A and B 








41-39 


2 


-13-5 


\n 


ft 


34-10 




-14-3 


y 


ft 


30.22 




.15.0 


2)1 


A 


30.88 




.15.0 


\)) 


ft 



A and C (= H " VL 42 = S 559J 



1781.90 


65-5 


116.75 




\n 


H- 


1825.10 


66.4 


132. 3± 


. 20 


2)1 


S 


1878.73 


71.0 


174.61 




2n 


ft 


1884.27 


71. 1 


176.98 


.11.2 


1)1 


H5 


1898.81 


71-7 


187.57 


.10.7 


If! 


ft 


1898.87 


71.8 


187.72 

A and E 


. 10. 


1)1 


A 


1877.08 




90.4 


205-5 


.12.5 


\)i 


Flm 


1879.24 


90.0 


206.30 


- 9-5 


1)1 


ft 


1898.81 


90.0 


218.54 


. I I.O 


1)1 


ft 


1898.87 


90.0 


219.10 


. 10.0 


in 


A 



A and F (— S 5 App. 11) 



1781.90 


74-1 


160.70 






I ft 


H- 


1825.10 


72-7 


198.47 




• - 15 


211 


S 


1836.26 


73-9 


203.84 


2.0 


. . 1 1.0 


y 


2 


1850.71 


74-4 


213.28 




■ • 10.5 


2)1 


05 


1867.52 


75-1 


223.41 




. .10.5 


4)1 


J 


1879.24 


75-3 


229.24 




. . 1 1.0 


1)1 


ft 


1884.21 


75-6 


233-15 




. . 


211 


H2 


1898.81 


76-3 


242.87 




. . 10.5 


1)1 


ft 


1898.87 


75-8 


242.57 
C ar 


id F 


. . 10. 


1)1 


A 



1851.88 89.8 57.40 
1884.16 89.5 57. 98 

1898.96 89. 4 58. 01 



3" 


OS 


1)1 


H2 


1)1 


ft 



C and E 



1898.96 145 2 71.12 



1>1 



The duplicitv of llerschel's distant companion 
to Pollux was discovered with the iS'j-incli. The 
nearest star, B, was found with the same instrument. 
The measures show no sensible motion in CD. /3 



92 



General Catalogue of Double Stars 



Getfnnoru?n has a proper motion of of 637 in the 
direction of 266?o (Auwers). The change in the 
position of the faint star, B, is due to this move- 
ment of A. With this proper motion and the 
measures of 1892, the minimum distance of 7 Jo 
will occur about 1945. It will then be a very diffi- 
cult object, and beyond the reach of most tele- 
scopes. It is not easily seen now with any aperture. 
The change in the distant stars, C, E, and F, cor- 
responds to the proper motion of A. 

[/3 (x).../3'...^3...^ (2930,3141)... |3 [Pub. L.O. n)... 
Aitken ( ) . . . ] 

The following, in addition to the catalogues of 
H', South and 2, relate to the distant stars : 

[J (n). . .Flammarion [Etoilcs Doubles et Multiples). . .02 
{Poulkowa Obsns. X, p. 77). . .] 



P 1062. 82 Gemijiomm 



R.A. 7h4i"23= 
Decl. + 23° 26' 



1889.10 


32.3 


4.06 


6.0. 


•13-5 


3« 


iS 


1898.96 


35-8 


3.82 




.13-5 


\n 


^ 



Discovered with the 36-inch. The principal star 
{Berlin A.G. Catalogue) has a proper motion of 
0^030 in the direction of 299?8. The interval is 
too short to show whether the companion has the 
same movement. 

[|3 (xvn). . .^ (3047). . .(3 ^P^b. L. O. 11). . .] 



P 1063. I Argus 



R.A. 7'' 44"" 15' 
Decl. — 24° 34' 



1889.12 188.7 
1898.24 223.8 
1898.27 189.8 



4.63 4.0... 1 3. 8 3« /3 
4.87 ... 211 See 

4.92 4.2 . . . 14.0 2)1 A 



Discovered with the 36-inch. The principal star 
has a small proper motion, oro29 in the direction 
of 326?3 (Auwers). So far there is no change in 
the companion. 

[/3 (xv) ... (3 (2929) ... (3 [Pub. Z. O. 11) . . . See ( ) . . . Aitken 



P 1195. Lalande 15331 



R.A. 7h 45™ 35=^ 
Decl. — 9° 6' 

o ;/ 

1891.00 81.4 0.46 7.3. 

1898.06 81.6 0.46 7.7. 



7.6 yi /3 

7.7 2n A 



Discovered with the 36-inch. 
[(3 (xvii). . ./3 (3047). . ./3 {Pub. L. O. II). . .Aitken ( 

P loi. 9 Argus 







R.A. 7" 46 


m ,3s 


( 










Decl. — 13 


° 35' 






1875.24 


289.7 


0.58 


5.6. 


.. 6.7 


2« 


J 


1878.47 


302.6 


0-45 


5-5 


.. 6.7 


A,n 


Cin 


1878.52 


301.8 


0.46 


5-2 


-. 6.5 


2 91 


a 


1879.68 


306.2 


0.38 


5-0 


.. 7.0 


2« 


HI 


1882.21 


319-7 


0-35 


6.0 


. . 7.0 


4« 


Sp 


1883. II 


336-2 


o-3± 






i?i 


^ 


1888.26 


356-1 


0.29 






S" 


Sp 


1889.08 


76.4 


0-34 


5-7 


.. 6.3 


4« 


^ 


1890.19 


83.0 


o.4± 






2« 


Sp 


1890.26 


84-6 


0.31 






4« 


/3 


1890.96 


88.3 


0.36 


5-8 


.. 6.3 


3« 


/3 


I89I.I5 


94-7 


o.3± 






in 


Sp 


1892.05 


98-7 


0.22 






yi 


/3 


1892.26 


165.2 


0.25 






2« 


Sp 


1893.24 


158.0 


0.23 






8« 


Sp 


1894.06 


282.0 


0.43 






6« 


Bar 


1894.24 


286.6 


0-35 






271 


Com 


1894.25 


280.2 


0.44 






6« 


Sp 


1894.84 


287.2 


0.63 






4« 


Bar 


1895.21 


285.2 


0.42 






2)1 


Com 


1895.22 


285.4 


0.58 






S" 


Bar 


1895.24 


282.4 


0.51 






5« 


Sp 


1895.30 


283.8 


0.58 






yi 


See 


1896.21 


288.1 


0-53 






in 


Sp 


1896.24 


287.0 


0-49 






yi 


Com 


1896.86 


292.1 


0.54 






3« 


Ait 


1897.38 


290.4 


0.69 


5-7 


--- 6.3 


4« 


Doo 


1897.81 


288.8 


0.64 






m 


;8 


1897-85 


292.7 


0.62 






y 


Ait 


1897.95 


292.9 


0.61 






3« 


Hussey 


1898.13 


294-3 


0.67 






2?l 


Hussey 


1898.18 


292.5 


62 






2« 


Brown 


1898.23 


292.3 


0.63 






2« 


Doo 


1898.28 


289.4 


0.61 


6-5 


.- 6.5 


3« 


Ait 


1899.19 


293.0 


0.60 






2« 


Ait 



Discovered from iSji to i8gg by S. W. Burnham 



93 



Discovered -with the 6-inch. One of the most 
interesting of the rapid binaries from its short 
period, and the proper motion of the system. 

Four orbits have been found for this pair, using 
the measures to the dates given : 

1892 Glasenapp 40.54 years J/£i«. iVi?/. lii. 546 

1892 Burnham 23.3 years Pub. L.O. 11. 239 

1892 Glasenapp 23.33 years Mon. Not.'Lw.i'i.^ 

1895 See 22.00 years A. N. 3297 



be substantially correct by the measures of B.ar- 
NARD in 1894 (Ast. and A. -P. xiii. 290) and subse- 
quent observations. Glasenapp'.s second orbit is 
from this apparent ellipse, and of course gives the 
same elements. So far this ellipse appears to sat- 
isfy the observations as well as could be desired, 
and any improvement in the period and other ele- 
ments can only come when a considerable portion 
of the second revolution has taken place, particu- 
larly on the following side where the angular 




9 Argus. yS 101. 



The first three are based upon the same measures, 
but Glasenapp allowed an error much too great in 
the distance given in my measures in 1892. I 
called attention to this (^Astronomy a>id Astro- 
physics, XII. 494), and gave another orbit, which 
satisfied this as well as the prior measures, and pre- 
dicted a change in the position-angle of more than 
180° in the two years following the measures of 
1892, thus completing nearly one entire revolution 
since the first measures. This orbit was shown to 



change is rapid. These orbits are shown in the 
accompanying diagram, reproduced from Publica- 
tions of the Lick Observatory, Vol. II : 

This system has a considerable proper motion : 



Auwers 
Porter 



0.351 in 195.4 
0-343 i" 193-5 



It was evident at the beginning, before it was 
measured at all, that this was a binar)-, as otherwise 



94 



General Catalogue of Double Stars 



the proper motion of one star in two or tiiree years 
would make it a very easy pair, and one which 
could not have been overlooked by prior observers. 
In Fig. 2 the same ellipse, which is given in the 
previous diagram, is shown, with the addition of 
some of the recent positions. It will be seen that 
so far the orbit I found in 1892 satisfactorily rep- 
resents the recent measures. 



P 23. D.M. (3^) 1876 



R.A. 7'' 56™ 14S 
Decl. -|- 3° 26' 



1875.54 177.0 
1891.97 181. 9 
1898.12 178.0 



2.81 8.2 . . . 12.0 211 J 

2.62 8.0. . . 10.8 3« y8 

2.48 8. .0. . I 1.5 211 A 



-570 




9 Argus. /?101. Fig. 2 



Scale 



[/3 (11)... /3 {Mon. Not. xxxiii, 437). . ./3^ . ./33 (2930,2979, 
3048,3114). . ./3 {Ast. &= A.-P. XII, 494; XIII, 290).../) 
(II)... HI (I)... HI (/%.(//. (9/>^«j. 1879, 1880)... Cins... 
Sp (11, II app.. Ill) . . . Glasenapp {Mon. Not. LII, 546 ; Liv, 
318). . .Gore (Mon. Not. XLVii, 61). . .Everett {Mon. Not. 
LVI, 464). . .Comstock {AU. &= A.-P. XIll, 518) {Pud. 
Washburn Obsy. x) . . .See {Evolution of the Stellar Systems 
I) {A.J. 349, 378)... See (3297,3314)... Aitken (3465) 
(^./. 429). . .Hussey (^./. 427). . .Doolittle {A.J. 416) 
. . . Aitken ( ) . . . Hussey ( ) . . . Doolittle {Pub. Flower 
Obsy. l) . . . Barnard {A. J. 447) . . . Brown ( ) . . . ] 



P 902. Lalande 15575 



1879.18 247.1 
1879.27 244.3 
1892.20 243.7 



R.A. 7'> 52" 22^ 
Decl. — 10° 34' 



1.33 8.0 ... I I. o m (3 

1. 18 8.0 ... I i.o 11/ Cin 
1. 17 8.0 ... 1 1.3 3« Lv 



Discovered with the 18^-inch. Further meas- 
ures are needed. 

[iS (XIII). . ./33. . .Cin5. . .l.v {A.J. 278) {Proe. Haverford Coll. 
Obsy., 1892)...] 



Discovered with the 6-inch. Probably unchanged. 
A faint pair in the field n p. 

\p{\)...& (Mon. Not. XXXIII, 351)... /3 (3114). . .0 (P«3. Z. 0. 
\\]...A (i)... Aitken ( )...] 

P 333. Argus 269 







R.A. 7»' 


55m ^5 


} 










Decl. — 


22° 0' 


\ 










A and B 








1877.19 




43-1 


2.03 


7.0. 


■ 9-5 


111 


Cin 


1879.09 


45-4 


1.44 


7.0. 


. 10.2 


411 


Cin 


1885.66 


43-6 


1.70 


1-1 ■ 


. lO.O 


in 


W 


1893.22 


39-4 


1-45 


7 • 


■ 9 


211 


Sel 


1897.83 


45-8 


2.02 


7 ■ 


. 8.8 


\ii 


See 


1898.23 


36.7 


1.62 


7 • 


. 10 


111 


D 






A and C 









7-7. 



7-7 



211 
211 



w 

D 



1885.66 73.5 42.15 
1898.23 72.3 42.39 

Discovered with the 6-inch. Apparently without 
change. Lalande 15720. C is Lalande 15721. 
The magnitudes are discordant; L 8*3^ ; S.D. 8.4; 
Cin.Z. 7.7. 

[(3 h-i) . . . (3 (2062) . . . Cin't . . . CinS . . . Wilson (Cin") . . . Sellers 
(3240). . .See (3495). . .Doolittle (Pub. Flower Obsy. l). . . J 



Discovered from ^8ji to i8gg by S. W. Burnham 



95 



P 202. O. Arg. S. 7850 







R.A. 7" 
Decl. — 


56-" 59' ) 
26° S3' \ 












A and B 








1876.09 


i64!8 


8.18 


7-5-- 


. 9.0 


171 


li 


1878.16 


160.4 


7-74 


7.0.. 


• 9-7 


2/1 


Cin 


1883. II 


164.4 




7-5-- 


. 10. 


\n 


W 


1892.10 


160.7 


7-77 


7.2.. 


. 10. 


yi 


/8 


1892.19 


160.3 


7.62 


7-3- • 


.10.4 


yt 


Lv 


1897.85 


160.8 


7-39 


6 . . 


.11.5 


in 


See 


1899.09 


161. 2 


7.60 


8.0. . 


. I I.O 


m 


y8 






A and C 








1897.85 



77.1 


19-37 




.13.6 


m 


See 






A and D 









1897.85 239.2 



29-43 



m See 



Discovered with the 6-inch. Probably fixed. 

[(3 (lv).../3 (Mon. Not. xxxiv, 382).. .^3 {3ii4)...j3 (Pub. L. 
O.n). ..Cin3. . .CiiT».. .CinS. . .Wilson (Cin^°). . .l.y{Proc. 
Haverford Coll. Obsy., 1892) {A.J. 278). . .See (3495). . .] 



P 203. O. Arg. S. 7874 



.A. 7" 


57 


Ml' \ 








eel. — 


27 


°i3'i 








// 
7-15 




7-7- ■ 


. 8.5 


7« 


Cin 


6-94 




7.0. . 


■ 8.5 


\n 


Cin 


7-15 




7.0.. 


. 9.0 


171 


W 


7.41 








171 


See 



1876.11 242.5 

1879.09 243.8 

1883. II 245.2 

1898.14 242.2 



Discovered with the 6-inch. No sensible change. 
A 9 m star 64" distant in 73?7. 

[^ (IV). . ./3 (Mon. Not. XXXIV, 382). . .Cin3. . .CinS. . .Wilson 
(Cin'°)...See ( ). . . ] 



P Sol- Lalande 15743 



1878.15 176.9 
1878.22 180.3 



R.A. 7" S7"> 43^ ) 








Decl. + 12° 38' \ 








A and B 








0.40 S.o . . 


. 8.0 


27/ 


f3 


0.40 8.7 . . 


. 8.7 


17/ 


J 



883-37 

886.26 
889.23 

890.21 

891.97 

893.24 
893-31 
893-93 
894.17 
894.27 
895.22 
895.24 
895.28 
895.28 
896.18 

896.24 
896.94 

897.81 
898.16 
898.18 
898.25 
898.27 

899.16 



1878.13 

1878.22 
1886.25 
1891.97 
1892.13 
1894.17 
1895.24 
1895.28 
1896.18 

1896.94 

1897.81 
1898.18 
1898.25 

1899.02 
1899.16 



205.2 

229.6 
249.8 

253-7 
259-4 

263.2 

273.1 

266.0 
262.3 

266.8 

267.9 

266.8 
278.3 
271.9 

272.8 
272.9 

274.9 
275-5 

271.0 
282.0 
281.4 
278.0 

285.1 



185 

184 

189 

192 
190 

191 

192 

199 
197 

196 

193 
195 

201 
192 

194 



0.30 
0.46 
o.4±: 

o-5± 
0.46 
0.51 
0.84 

0-55 
0.50 
0.47 

0-43 
0.50 

0.45 
0.34 
0-59 
0-37 
0.56 
0.56 
0-3S 
0-59 
0.49 

0.45 
0.48 



8.0 



8.6 



8.0 



AB and C 

;/ 
4.76 

4.76 

4-36 

4.60 

4-58 
4.60 
4.82 

5-13 
4.42 

4-50 

4-55 
4.89 

4-83 
4-73 



■ • -10.5 
... 1 1.0 

.. .11.5 
. . . 1 1.0 



11 + 



. 1 1.0 



5» 


En 


2 71 


H2 


4« 


Sp 


4« 


Sp 


4// 


^ 


9" 


Sp 


i« 


Leu- 


in 


Bar 


4« 


H2 


4// 


Sp 


y 


Sp 


17/ 


H2 


m 


Lew 


yi 


Com 


yi 


Lew 


yi 


Com 


yi 


A 


171 


^ 


171 


Bow 


3« 


Br 


171 


Lew 


171 


Sp 


2 71 


A 



J" 

171 
171 

A" 
171 
4;/ 

in 

171 

yi 

2 71 
171 
171 
17/ 
171 
271 



/3 
J 
H2 

Col 

H2 

H2 

Lew 

Lew 

A 

yS 

Br 

Lew 

/3 
A 



This most interesting triple svstem was discov- 
ered with the 18)/ -inch. The close pair is in 
rapid direct angular motion, with no sensible 
change in the distance. The third star, C, is also 
moving in the same direction more slowlv. This 
system bears a close resemblance, in all respects, to 
t, Gi/icri, except as to the magnitudes of the com- 



96 



General Catalogue of Double Stars 



ponents. The principal positions of the close pair 
are shown in the followina: diagram : 




^Q^ 



A and B (= S 1179) 



/? 581 

The proper motion of this star, if any, is not 
large. Porter finds, from an examination of the 
meridian observations, that an annual proper mo- 
tion of o!i2 in the direction of 180° would best 
represent them, but from the lack of observations 
this value is not certain. Whatever the movement 
may be, it is evidently common to the three com- 
ponents. 

[/3 (x).../3^..i3 {Mon. Not. Lll, 438). . ./3 (3ll4).../3 {Pub. 
L. 0.\\)...A (l) . . . Engelmann (2678) . . . Sp (ni) . . . Col- 
lins {A.J. 278) {Proc. Haverford Coll. Obsy. 1892)... 
Comstock {Pub. Washburn Obsy. x) . . .Lewis {Mon. Not. 
Liv, 315; Lvi, 359; Lix, 400) {Greemuich Obsns. 1895) 
. . . Aitken (3465) . . .Lewis ( ). . .Barnard {A.J. 447). . . 
Brown ( )...HS( )... Aitken ( )...] 



P 582. D.M. (12°) 1760 







R.A. 7'' 


58"" 


6= 


I 












Decl. + 


12° 25' 


\ 












B and C 












1878.09 


59-8 


// 
3-76 






. . 12 




271 


/8 


1879.28 


59-1 


3.60 






..II 




in 


Cin 


1891.99 


57-6 


3-93 






..II 


5 


3« 


/3 


1896.14 


58.0 


4-39 










m 


Lew 


1899.02 


55-1 


3-59 






. . 12 





i?i 


/3 



1829.73 205.2 

1847.20 204.3 

1863.13 205.0 

1864.90 204.6 

1878.09 204.5 

1879.28 204.8 

1880.18 203.5 

I88I.I8 203.8 

1891.99 204.2 

1896.14 204.8 
1899.02 203.9 



17.91 8.5 
18.38 

20.71 

19.16 8.9 

19-75 
19.86 8.0 

19-52 

1973 

19.93 8.7 
20.43 

20.26 8.3 



8.5 


2;/ 


2 




m 


Ma 




in 


En 


8.9 


5" 


J 




2n 


iS 


8.0 


m 


Cin 




in 


Pt 




m 


Big 


8.7 


3" 


/8 




in 


Lew 


8-3 


in 


IS 



The small companion to B of 2 11 79 was dis- 
covered with the 18^-inch.' The change in AB is 
due to proper motion, probably of the brighter 
component. This movement appears to be about 
o!o3 in a direction nearly opposite B. All the 
measures of these stars are given above. 

[;8 (x).../3'...i3 (3114)...^ {Ast. ^^ A.-P. XIII, 17)... /3 {Pui. 
L. O. 11). . .CinS. . .Lewis {Mon. Not. LIX, 400). . .Madler 
{Fixstern-Systeme ll) . . . Engelmann {Mess.Neunzig Doppel- 
sternen). . . Bigourdan {Paris Obsns. 1883) . . . Pritchett 
{Pub. Morrison Obsy. l). . .] 





^ 


903. Lalande 15768 








R.A. 7" 58™ 9=* 










Decl. — 1° 31' 






1879.27 




28.2 


i!'48 8.5.. 


■ 9-5 


in Cin 


1879.60 


33-7 


1.47 7-8.. 


■ 9-3 


Sn /3 


1892. 1 1 


32-8 


1.54 8.2.. 


. 9.0 


yi 13 


Discovered w 


th the 1814-inch 


Unchanged. 



[(3 (XIII). . .j33. . .p (3114). . .)3 {Pub. L. O. II). . .CinS. . .] 



P 334- Lalande 15933 



R.A. 8'^ 2" 35 
Decl. — 21° 42' 



1877.14 352.4 

1880.18 354-2 

1894.23 352.3 

1897.83 352.5 

Discovered with the 6-inch.. Apparently fixed. 

[(3 (VI)... (3 (2062)... Cin''... Cin^.. Sellers (3303)... See 
(3496). •■] 



2.38 


8.0. . 


. 8.7 


211 
m 


Cin 
Cin 


2-55 


8 .. 


■ 9 


m 


Sel 


2.90 


7.1. . 


. 8.1 


m 


See 



Discovered from iSyi to i8gg by S- W. Burnham 



97 



P583. 



R.A. 
Decl. 



Lalande i 5959 

8'' 3"" 18= 
— 6° 21 ' 



1878.10 68.5 1.82 8.5. . . 8.7 \>i (3 
1878.16 68.4 1.76 9.0... 9.7 2« Cin 
1878.26 67.5 1. 71 9.5...10.0 If/ J 

1892. 11 69.5 1.70 8.9... 9.1 y/ {3 
Discovered with the 18 1/^ -inch. Without change. 

[/3 (X). . .P'.. ./3 (3114). . ./3 {Fui.L. 0.u)...A (i). . .CinS. . .] 

P 1064. 1 9 Argus 



1889.08 244.9 
1898.31 246.0 
1899.26 244.2 



1898.29 298.6 33-20 



R.A. 8'' 


5" 39' 








Decl. — 


12° 34' 








A and B 








1.84 


6 . 


• 12.5 


4;/ 


y8 


2.88 


6 . 


. I 2 


in 


A 


2.31 


6 . 


■13-5 


\fi 


/3 


A and C 









14-5 



10 


211 


Sh 


9 


y> 


/8 


9 


\n 


A 




\n 


/8 



A and D (= H' IV. 26 ^ Sh 91) 

o a 

1826.65 256.0 70.17 4 

1889.08 255.8 70.67 6 
1898.27 256.1 71-85 6 
1898.96 256.0 71-44 

The close star was discovered with the 36-inch. 
All the measures of the distant star, D, are given. 
The large star has a proper motion, according to 
AuwERS, of o;'o5o in the direction of 295?9. The 
faint star C was first noted by Aitken. There is 
also a 11.5m star, 277?3 ; 65 f'7. 
[jS (XV)... /3 (2929)... {Pub.L. O. II)... Aitken ( ).. .] 



04. La 


lande 


6074 ■ 






R.A. 8" 


7'" 2* 


I 






Decl. + 


10° 45' 


\ 






// 
1.06 


7-1- 


. . 10. 1 


4« 


J 


0-95 


7.0. 


• - 9-5 


in 


02 


0.99 


7-5- 


. . 9.0 


in 


P 


1.40 






m 


H2 


1. 01 


7.8 


■- 9-4 


m 


Lv 


0.87 






y 


Sp 


0.84 






y 


Sp 



1875.89 302.1 

1877-25 305-0 

1879-13 304-1 

1886.21 298.4 

1889. II 304.2 

1892.25 303.8 
1893.24 301.7 

Discovered with the 6-inch. There does not ap- 
pear to be any motion. 

[|3 (iv)...i3 {Mon. Not. xxxiv, 382). . .|S^ . .OS (Poiilko:ca 
Obsits. \).. .A (i). . .I.vV . .Sj) (ill). . . IIS ( ). . . I 



P 1243. B.A.C. 2759 

R.A. 8" 7™ ig"- } 
Decl. + 18' 2' f 

A and B 



1891.23 344.7 1.40 7. 1... 13 

1894-15 343-2 1-38 
1898.29 348.4 1.40 

A and C (= H' VI. 78) 



2;/ /3 
2/1 Bar 
i« /3 



1898.31 301.7 64.60 



9.3 2« ^ 



Discovered with the 36-inch. It is 2"' /and 
104" n oi t, Cancri, and is the star which 1 sug- 
gested {Mon. Not. April 1891) would be suitable to 
compare with C of t, Cancri to determine whether 
the latter has any variable motion due to the pres- 
ence of an invisible star. In measuring this dif- 
ference of declination the very minute companion 
given above was detected. So far the measures 
show no certain change. The Berlin A. G. Cata- 
logue gives the principal star a small proper motion, 
0^033 in the direction of 334?6. 

The distant star C, making H"VI.78, was not 
measured by Herschel, being merely noted as 
Class VI. All the measures of this star are given. 

[^ (xviii).../3(3ii3)...;8 {Pub. L. O. II, pp. 66, 225)... Bar- 
nard {A.J. 447)---] 



P 1244. D.M. (2) 1904 

R.A. 8'' 7'" 31^ J 
Decl. + 2° 21' ») 



1891.23 
1892.88 
1893.22 
1894.25 
^896. 27 
I S97.29 



50-3 
5I-I 
49.6 
48. o 
40.1 
46 9 



0.74 
0.70 
0.70 

0-73 
0-65 

0.S2 



7-9 
8.C 



8.1 
8.0 



3" 
m 
zn 

y 

m 

4" 



.1 

Sp 

Sp 

Lew 

A 



Discovered with the 36-inch. Tlio measures do 
not show any sensible motion. 

[ti (xviu). . ./3 (3113). . ./3 [Pub.L. O. 11). . .Jones (Proc. Hav- 
erford Coll. Obsj: 1892). . . Ailken (3465). .. Lewis [Mon. 
A'ot. MX, 400). . ,Sp (ill). . .] 



98 



General Catalogue of Double Stars 



p 904. s.D. (5°) 2435 



R.A. 8" 7" 52^ 
Decl. — 5° 23' 



1880.16 81.3 3.12 8.4...10.0 4;/ /? 

1892.18 80.2 3.18 8.0...11.0 4« Lv.C 

Discovered with the iSj^-inch. One of the 
brighter stars of the large cluster, Dreyer 2548. 

[/3 (xill). . ./33. . .Lv and Collins (Proc. Haverford Coll. Obsy. 
1892) (^./. 278)...] 



P II96. D.M. (60°) 1 127 



R.A. 8" 8-" 55= 
Decl. + 59° 57' 



1890.97 


62.0 


0-45 


8.5. 


.10.5 


2« 


/3 


1899.17 


55-2 


0.29 


8.5 •• 


. 10.0 


\n 


A 



This is 63'/a 6 m star, and 40" n. Discovered 
with the 36-inch. In D.M. 9.2 m. 

[iS (xvn).../3 (3047).../3 (Pub. L. O. ii)...Aitken ( )...] 



P 1065. P Cajicri 

R.A. 8h I0-" 0^ \ 
Decl. + 9° 33' \ 



1889. II 294.7 29.14 
1898.27 293.6 29.38 
1898.94 294.8 28.99 



3-5---I4 V ^ 

3. 5... 1 3. 8 2u A 

...13.6 yi fB 



The faint companion was detected with the 36- 
inch. AuwERS gives o!'o74 in the direction of 
237? 2 as the proper motion of /8 Cancri The 
companion seems to be moving with it, but further 
measures are necessary to make this certain. 



[/3 (xv). . ./3 (2929). . ./S (Pub. L. O. II). . .Aitken ( 



P 454. O. Arg. S. 8280 

R.A. 8'' lo"" 12^ 
Decl. — 30° 30' 



] 



1877.30 


18.6 


2± 


8.0. . 


. 10. 


\)i 


y8 


1892.20 


16.3 


2.41 


8.1. . 


• 9-4 


y 


/8 


1892.26 


16.6 


2.49 


78. 


. 9-8 


211 


Lv 


1898.27 


16.0 


2.49 






\V 


See 



Discovered with the 6-inch. No evidence of 
motion. See measures a 14m star 287?5 • i9'i2 
(1898.27) \n. 

[^ [\yi)...^(Mo,i. Not. xxxviir, 78)... /3 (3141)...^ {Pub. L. 
O. 11) . . . Lv [A. J. 278) {Proc. Haverford Coll. Obsy., 1892) 
...See( )...] 



P 905- O. Arg. S. 82J 



R.A. 8'' 10"" 59= \ 
Decl. — 15° 57' \ 



1879.72 


12.2 


3-75 


7.8 


. . 10.4 


4« 


/8 


1883.86 


13-7 


3-75 


8.2 


. . 10.4 


2n 


W 


1888.57 


I I.O 


4.06 


8.1 


. . 10.4 


2« 


Lv 


1893.20 


12. 1 


3-76 


8.0 


. . 10. 


i« 


j 


1898.19 


M-5 


3-94 






m 


See 


1898.26 


12.2 


3-92 


8.0 


..10.5 


yi 


A 



Discovered with the 18^ -inch. Relatively fixed. 

[/S (xill). . ./SI. . .Wilson (Cin'°). . .Lv'. . .Jones [A.J. 312). . . 
See ( ).. .Aitken ( )...] 



P 102. Lalande 16234 

R.A. 8'' ii"> 0^ } 
Decl. - 8° 39' i 

o // 

1875.41 121. 5 3.08 7.0... 10. 5 yi J 

1892.08 120.8 3.30 7.4...10.0 yi /i 

Discovered with the 6-inch. The change, if any, 
is insignificant. 

[^ (11). . .P {Mon. Not. xxxill, 437). . .^ (3141). . ./3 {Pub. L. 
aii)...J(i)...] 



P 906. Lalande 16259 

R.A. 8'i II'" 23' 
Decl. — 15° 52' 



1879.97 


187. 1 


3-45 


8.2.. 


. 10.8 


A,n 


/3 


1884.12 


189. 1 


3-27 


8.7. 


. 1 1.2 


in 


W 


1898.26 


188. 1 


3-42 






in 


See 


1898.26 


187.4 


3-42 


8.3. 


. II. 2 


yi 


A 



Discovered with the i8i^-inch. Fixed. Near 
/3 905- 
1/3 (xill).. ./33... Wilson (Cin'°)... See ( )...Aitken( )...] 



Discovered from 187 1 to i8gg by S. W. Burnham 



99 



P 576. Lalande 16300 



.A. 8" IS"" 59S J 








eel. + 34° 19' \ 








i!48 7 •■ 


■13 


\n 


a 


1-37 7 •• 


•13 


\n 


/? 



1878.05 143. 1 

1899.02 147.9 



Discovered with the 18^ -inch. By a clerical 
mistake, the place of this star was given in ^ (x) 
with an error of i'' in R.A and 1° in Decl., as ap- 
pears from the record made at the time of dis- 
covery. The correct place is given above. 
W{x)...p'...] 



P 907- S.D. (12°) 2462 



R.A. 8" 14" 



Decl. 



12° 27' 



1879-74 57-8 
1892.18 55.2 
1899.26 52.1 



0.82 
0.88 
0.82 



8.5 . . . 10.7 2« yS 

8.7. .. 9.7 3« /? 
9.0. . . 9.4 m /S 



This close pair of small stars is 11^ p and 99" n 
of a 7 m star. Discovered with the 18^ -inch. 
[/3(xin)...^3.../3(3i4i)...] 



P 1066. Lalande 16489 



R.A. 8" iS" 31= 
Uecl. + 9° 49' 



1889.12 187.7 2.25 6. 8... 13. 2 3« ji 

1898.96 185.5 2.28 7.0... 13.0 i« /3 

Discovered with the 36-inch. The magnitude 
in D.M. is 7.6. 

[i3 (xv)...;8 (2929)... /3 (Puh. L. O. 11)...] 



P 1067. Ursae Majoris 



R.A. 8'' 2 
Decl. -f 6 



0™ 17" 1 

1° 7' \ 



1889.22 191. 4 7.01 3%.. 15. 2 

1892.12 Not seen with 36-incli 

1895.09 194.4 7.15 

1899.17 192.3 7.15 ...is-s 

Discovered with the 36-inch. The large star has 
a proper motion of ori76 in the direction of 229?S 



3;; 


yS 


2« 


)8 


2n 


Bar 


in 


A 



(AuwERs). There is no doubt of this being a 
physical system, as the small star is moving exactly 
with the other. If it was fixed in space, the posi- 
tion-angle would decrease 11^ and the distance 
1^27 in the interval between 1889 and 1899. It is 
evident from the measures that there has been no 
sensible change. 

Engelhardt {Obsns. Ast., II, III) measures two 
distant stars in the field : 



1888.30 


152-5 


143-70 


2« 


1894.27 


152. 1 


144-05 


2« 


1888.30 


208.0 


177-23 


2« 


1894.27 


208.0 


^75-95 


2n 



[j3 (XV)... /3 (2929,3141)... /3 {Pub. L. O. 11)... Barnard [A.J. 
447)...Aitken ( )...] 



P 205. O. Arg. S. 







R.A. 8" 


27" 54= } 












Decl. — 


24" 12' f 








1874.19 




3io± 


0.5 + 


7 •• 


7 




/? 


1877. II 


280.9 


1. 00 


7.0. . 


7.2 


in 


Cin 


1878.53 


100.3 


0.63 


6.9.. 


7-3 


\n 


Cin 


1882.21 


276.6 


0.52 


7.0. . 


7-0 


i» 


Sp 


1886.17 


270.1 


0.80 


8.5-- 


7-7 


2n 


w 


1889.16 


257.0 


0.74 


7.0. . 


7.2 


\n 


Lv 




lOO 



General Catalogue of Dozible Stars 



1890.28 


261.9 


0.70 


7-5- 


• 7-5 


2« 


^ 


IS9I.87 


256.2 


0.65 


7.2. 


• 7-5 


V 


/8 


1893.20 


252.6 


o.3± 


7 • 


• 7 


\n 


Sel 


1897.23 


244.4 


0.81 






yi 


Ait 


1898.16 


242.5 


0.75 






\n 


See 


1898.25 


236.5 


0-75 


7-7- 


. 7-8 


yt 


Ait 



Discovered with the 6-inch. The change in 
angle is a little more than 2° per year, with perhaps 
a small increase in the distance, but the meaures are 
not very accordant. The Cordoba magnitude is 
6.4. Lacaille 3377. See measures a 14.5 m star, 
354?5 : 26f44 (1898.16) \n. 

The principal positions are shown in the accom- 
panying diagram. 

[(3 (iv) . . . /3 [Moti. Not. XXXIV, 382) . . .^ (3048,31 14) . . . /3 {Pub. 
L. O. II). ..Cin". .. CinS.. .Wilson (Cin'°)...Sp (11)... 
Lv'. .. Sellers (3240) . . . Aitken (3465)... See ( )... 
Aitken ( ). . .] 



P 206. Cord. G. C. II 565 







R.A. 8'' 


30" 175 ) 












Decl. — 


24° 42' \ 








1874.19 


278.6 




1-5 + 


8.0. . 


9.0 


in 


/8 


1877. II 


281.7 




1.99 


8.0. . 


8.7 


211 


Cin 


1880.27 


279-5 




1.62 






in 


Pt 


1886.21 


285.2 






8 .. 


9 


m 


LM 


1889.09 


280.3 




1.76 


8.0. . 


8.4 


yt 


Lv 


1898.19 


280.2 




1-93 






ifi 


See 


Discovered with 


the 


6-inch. 


Probably 


' un 



changed. 

[/3 (iv). . ./3 {Moft. Not. XXXIV, 3S2). . .Cini. . .LM . . .Lv" 
Pritchett {Pub. Morrison Obsy. l) ... See ( ) . . . ] 



P 584- Piazzi Vin. 124 



R.A. 8'' 33"' 3^ 
Decl. + 19° 58' 



1878.05 291.0 
1892.05 292.4 



A and B 








i!'6i 8.0. 


. 12.0 


2H 


P 


1.26 8.0. . 


.11.7 


y 


/8 



A and C (= S 571) 



1825.13 


157-0 


45.04 


I'A. 


. 8 


2« 


s 


1875.07 


156.3 


45.12 


7.0. 


• 7.3 


Z» 


J 


1876.49 


156.3 


44.70 






yi 


Sch 


1892.05 


156.2 


44.80 




. 7.9 


3« 


/3 


1899.07 


156.7 


45-04 






2n 


/3 






A and D 








1825.13 



241.0 


// 
92.26 




. 6 


2« 


s 


1875.07 


241.2 


92.76 


. . 


. 6.3 


3« 


J 


1876.04 


241.4 


92.26 






2« 


Sch 


1899.07 


241.6 


92.85 
D ar 


d C 




2« 


/8 


1875.07 


87.9 


// 
99.72 






yi 


J 


1876.05 


87.8 


99.69 






3« 


Sch 



The close attendant to this wide triple in Praesepe 
was discovered with the 18^ -inch. The bright 
stars make S 571 = 02 (App.) 95. Each of the 
three bright stars has a slightly different proper 
motion, according to Re'chenberg (A. N. 3482). 
He gives the movement of A as of 114 in the 
direction of 262?4. • It is evident, if this star has 
any such annual change, that B is moving with it, 
as otherwise the change in A from 1878 to 1892 
would amount to i !'6. 

[/3 (X). . .^■. . .^ (3114). ■ ■? {P'^b. L. O.M)...A (I, p. 252). .. 
Kadcliffe Obsns. XXlll . . .Schur (2255). . .] 



P 207. Lalande 17091 



R.A. 8'' 33™ 1 6^ 
Decl. — 19° 19' 



1876.08 


103.6 


4.32 


6.5-- 


.10.5 


Z" 


A 


1877.10 


106. 1 


4-54 


6.7.. 


. 9.2 


2n 


Cin 


1880.71 


102.2 


4.18 


7.1.. 


- 9-5 


2n 


/3 


1888.65 


102.8 


4.06 


7.0.. 


. 10.2 


2« 


Lv 


1893.20 


IOI.6 


4-34 


7.2. . 


.10.5 


2« 


J 


1898.21 


101.6 


4-47 






m 


See 



Discovered with the 6-inch. Without change. 
The larger star is red. 



r/3 (iv)...^ {Mon. Not. xxxiv. 382). . .(33. . . /I (i) 
Lv'... Jones (^./. 312)... See ( )...] 



.Cin-t., 



Discovered from i8ji to i8gg by S. W. Burnham 



lOI 



P 208. Lalande 17103 









R.A. 8^ 33 


■"53' 












Dec). — 22 


°i6'^ 






1874.19 




30-4 


i-4± 


6.0. 


. 9.0 


\)i 


P 


1877.13 


31 


7 


1. 71 


6.0. 


. 9.0 


\n 


Cin 


1878.43 


33 


9 


1-37 


6.0. 


. 8.0 


5« 


Cin 


1882.21 


40 


9 


1. 21 


6.0. 


. 9.0 


3« 


Sp 


1886.18 


43 


2 


1.27 


6.0. 


. 8.0 


\n 


w 


X889.I5 


47 


5 


1.06 


7.0. 


. 8.0 


211 


/? 


1892. 1 1 


52 


3 


0.70 


6.8. 


. 8.1 


VI 


/8 


1894.26 


47 


6 


0-57 






\n 


Com 


1895.32 


55 


5 


o.6z!z 






\ii 


Com 


1897.83 


74 


7 


0-39 


6.2. 


. 6.4 


III 


See 


1898.29 


76 


2 


0-45 


6.5. 


. 8.2 


2n 


A 


1899.19 


83 


2 


0.36 


6.5. 


. 8.0 


\n 


A 



Discovered with the 6-inch. It appears to be a 
most interesting system from the rapid relative 
change and from the large proper motion. Porter 
gives this movement in space as of483 in the direc- 
tion of 328?3. Rapid motion in angle may be 
expected with the close approach of the two com- 
ponents. The principal positions are shown in the 
accompanying diagram. 




&0^ 



oji o:! 
I I L 



n.i 0.1! o.s 1,0 
I I I 1 I 1 I 



This is a naked-eye star in Argo; Cord. G. C. 
5.6 m. 

[/3 (IV). . .)3 {Mon. Not. x.xxiv, 382). . ./3 (2930,3141). . .ti{ru/>. 
L. O. n).../3 {Ast.&' A.- P. XI, 464)... Sp (ii)...Cin^.. 
Cin5. . .Wilson (Cin'°). . .Comstock {Pub. Washburn Ohsy. 
x)...See( )...Aitkcn( )...] 



p 585. Ca fieri log 







R.A. 8'' 34 






Decl. + 20 


1878.10 




106.4 


0.40 


1886.25 


109.4 


0.56 


1889.72 


110.3 


0.46 


1893.72 


1x0.3 


0-43 



4'" 20^ ) 

0" 54' ) 



IS- 



9.0 Ifl (i 

2ti H2 

Gn Sp 

2« Sp 



Discovered with the 18^ -inch. One of the 
outlying stars of Praesepe. B.A.C. 2927. Magni- 
tude in D.M. 7.0. 

[/3(x)...^'...Sp(iii)...HS( )...] 



P 209. W^ VIII. 849 



R.A. 8'^ 35"> 245 
Decl. +39° 14' 



1875-77 


355-4 


1.56 


8.4.. 


. 8.7 


4// 


J 


1878.75 


357-0 


1-57 


8.0. . 


. 8.7 


4« 


Sp 


1881.28 


357-7 


1-43 






Ifl 


Ft 



Discovered with the 6-inch. Later measures are 
needed, but so far there is no evidence of change. 

[^ (IV)... /3 (Mon. Not. XXXIV, 382)... J (l)...Sp (II)... 
Pntchett [Pub. Morrison Obsy. l). . .] 



P 586. Moiioccrotis 237 







R.A. 8'' 


4I-" 49^ ) 










Decl. — 


16° 37' \ 






1878.15 



53-2 


a 

0.75 


6.5--. 


9.0 


iti 13 


I87S.20 


55-6 




6.8. . . 


9-3 


2,11 Cin 


1878.26 


45-7 


0-54 


6.5..- 


8-5 


Ifl J 


1887.75 


55-4 


0.66 






V Sp 


1898.19 


56.8 


0.63 






Ifl See 


Discov 


sred w 


ith the 


1 8 Vj -inch 


P 


robablv un 



changed. In Hydra, according to Gould, 6.7 m. 

Lalande 17355. 

[/3(x),../3'...J (i)...Cin5...Sp(iii)...See( )...] 



I02 



General Catalogue of Double Stars 



P 335- Lalande 1734 i 



R.A. 8'' 41™ 58= 
Decl. 4- 3° 4' 



1875.99 


268.3 


2.72 


7.2. 


.10.5 


211 


J 


1879.26 


268.7 


3-09 


7.2.. 


• 9-5 


2n 


02 


IS86.30 


269.2 


2.77 






211 


HS 


1892.06 


270.1 


2.58 


7-3- 


.10.7 


y 


/8 


1899.09 


265.8 


2.74 


7.0. 


. 10.0 


111 


^ 



Discovered with the 6-inch. The /of three stars 
in the field. Without relative motion. 

[|3 (VI)... /3 (2062,3141)... i3 {Pub. L.O. II)... /I (i)...OS 
{Poulkozua Obsns. x)...HS( )...] 



P 1068. Lalande 17381 



R.A. 8^ 43" 2= 
Decl. + 9° 19' 







A and B 










1889.19 




189.9 


0-45 7-7- 


. 8 


8 


in 


/3 


1890.24 


190. 1 


o.4dz 






111 


Sp 


1893.25 


190.3 


0.25 + 






211 


Sp 


1894.25 


188.9 


0.25± 

AB and C 






211 


Sp 


1889.14 


313-0 


;/ 
17.80 


. . 12 


8 


2)1 


/3 


1899.02 


313-4 


17.85 


-13 





111 


/8 



Discovered with the 36-inch. The observations 
indicate some change in distance. 

[/3(xv)...j3(2929).../3 {Pub. L. O. 11). . .Sp (ill)... J 



P 1069. Lalande 174 16 

R.A. 8" 43'" 41= \ 
Decl. — 10° 34' \ 



1889.09 60.8 2.13 6.6...11.0 yi y8 

1899.19 60.2 2.42 7.0... II. 5 \ii A 

Discovered with the 36-inch. 
f/3 (xv). . ./3 (2929). . ./3 (Pub. L. O. II). . .Aitken ( ). . .; 



P 587. 15 Hydrae 







R.A. 8'> 


45" 41' \ 












Decl. — 


6° 44' \ 












A and B 













U 










1878.19 


159-9 


0.45 


6.0. . 


. 9.0 


2« 


^ 


1878.37 


163.6 


0-37 


6.0.. 


. 8.0 


\n 


Cin 


1879.18 


157-7 


0-47 


5-7- - 


- 7-2 


211 


^ 


1892.10 


151-9 


0-S9 


6.3-- 


. 8.2 


yi 


iS 


1893.85 


149.2 


0-55 






5« 


Sp 


1897.25 


143-4 


0-93 


6+.. 


- 9 + 


3« 


A 



ABand C (= H ' V. 120) 



1783-03 


340± 


43-03 






m 


H' 


1878.14 


356.8 


45-75 






m 


/3 


1892.06 


357-3 


45-35 




. . 10.6 


211 


/3 


1899.02 


358.2 


45-45 
AB and 


D 


. . 9.2 


m 


)8 



1878.14 53-2 49-99 
1892.06 53.2 50.24 
1899.02 53.0 50.76 



m p 

11.2 2« /? 

9-3 i« /3 



The duplicity of the principal star was discov- 
ered with the 18^-inch. There is no question as 
to its being a binary. The measures show retro- 
grade motion, and the components have the same 
proper motion. Auwers gives this as 0^069 in the 
direction of 27o?o. 

All the measures of the distant stars, C and D, 
noted by Herschel, are given above. 

[(3 (x).../3'...(33.../3 (3i4i)...,3 {Pub. L. O. II). . .CinS. . . 
Aitken (3465)... Sp (III)...] 



P 407. W VIIL II5Q 







R.A. 8" 


45 


^50= 












Decl. — 


6 


°20' 








1877.87 


i65?4 


II 
6.09 




7-7- 


. 10.0 


III 


J 


1879.09 


164.5 


5-52 




8.0. 


. I I.O 


in 


Cin 


1879.52 


164.5 


5-94 




7.9.. 


. 10.4 


I" 


/8 


1890.20 


161.4 


6.01 








211 


T 


1899.09 


164.8 


5-78 




8.2.. 


.10.5 


111 


li 



Discovered with the 6-inch. Evidently un- 
changed. 

f(3 (vii)...-/3 (2i03).../33...Zl (i)...CinS... Tarrant (3186)... 



Discovered from iS'ji to i8gg by S. W. Burnham 



103 



P 24. Lalande 175J 









R.A. Sh 


48™ 24S 


\ 










Deci. — 


8° 18' f 






1875-15 



171. 9 




11 

1.03 


7.9. 


. 9.0 


yt 


J 


1878.19 


177 


3 




1. 12 


7.8. 


. 9.0 


\)i 


/3 


1878.88 


175 







1.08 


7-3- 


. 8.3 


3« 


Cin 


1886.84 


173 


5 




1.26 






\n 


LM 


1888.91 


173 


8 




1. 19 


7-5- 


. 8.4 


4« 


Lv 


1890.22 


170 


5 




1.23 






3« 


T 


1892.13 


174 


7 




1.02 


7-5- 


. 8.0 


in 


Col 


1892.93 


172 


2 




0-95 


7-5- 


. 8.0 


\n 


J 


1893.22 


177 


4 




1.06 


8.0. 


.. 8.7 


111 


J 


Discovered 


w 


tth 


the 


6-inch. 


No evidence c 



motion. 

[/3 (i). . ./3 [Mon. Not. xxxni, 351).. .A (i). . .CinS. . .l,M. .. 
Lv'. . .Tarrant (3186). . .Jones and Collins {Proc. Haver- 
ford Coll. Obsy. 1892) [A.J. 212, 278). . .] 





p 


408. R 


adchffe 2231 










R.A. 8" 


48™ 58^ / 










Decl. +63° S3' \ 






1877.80 


344-0 


2.94 


7.8 . ..10.3 


Vi 


J 


1879-35 


346.7 


2-94 


7.0 .. . 9.5 


m 


OS 


1883.64 


345-7 


3-5° 


7.3 . . .10.2 


5" 


En 


1886.35 


342.3 


3.01 




2?l 


H2 


1898.15 


340.6 


3-34 


7+ . . .10 


4« 


D 



I»iscovered with the 6-inch. Probably no change. 

\P (vn). . .(3 (2103). . .Zl (i). . .Engelmann (2678). . .OS [Poid- 
kowa Obstis. x)...HS ( )...Doolittle {Pub. Flower 
Obsy. l)...] 



P 103. Lalande 1761 1 







R.A. 8" 


49 


11 2^ 


I 










Decl. — 


7 


" 22' 


\ 











// 












1875.08 


73-9 


2.90 




8.0. 


. . 1 1.2 


2« 


J 


1879.52 


73-9 


2.86 




7.9. 


. . 10.8 


y 


/3 


1880.76 


73-7 


2.71 








\n 


Pt 


1885.14 


69.7 


2-77 




8-5- 


. .10.7 


\ii 


w 


1898.20 


71.0 


3-11 




8 . 


. . TO 


VI 


D 



Discovered with the 6-inch. 
fixed. 



So far relatively 



\^ (n).../3 [Mon. Not. xxxill, 437)... jS^ 1 (i) .. .Wilson 

(Cin'°)...Pritchett [Pub. Morrison Obsy. 1) . . . Doolittle 
[Pub. Flower Obsy. l). . .] 



P 210. Lalande 17696 

R.A. 8" 51'" 18= I 
Decl. — 16" 58' f 



875.48 181. 6 
876.12 183.2 



i7».i« 
579-25 

!82.21 

!82.45 



2.40 
2.80 
2.62 

2.54 
2.62 
2.64 
2.76 
2.66 
2.67 
2.56 
2.96 



181.6 

181.0 

183.1 

181.3 
886.85 183.3 
893.20 183.0 

893.22 182.6 2.67 7 ... 7 
898.09 183.5 2.56 6%. . . 6y2 
898.16 183.5 

Discovered with the 6-inch. Evidently fixed. 
[j3 [IV)... ^ (Mon. Not. XXXIV, 382)... zl (i) . . .CinS. . .CinS 
Cin^.. Wilson (Cin'°). . .LM . . .Sp (ll).. .Jones {A.J. 
312). . .Sellors (3240). . .Scott (iMon. Not. Lix, 427)... 
See( )...] 

P 409. Lalande I 78 1 2 
R.A. 8'^ 54 ■"SS'^ 



3« 
611 



in 
2n 
2n 
V> 
3" 

2)1 

in 

3« 
m 



J 

Cin 

Cin 

Cin 

Sp 

\v 

LM 

J 

Sel 
Sc 
See 



Decl. — 



43 



1878.26 


184.3 


9-65 


8.0.. 


.10.5 


171 


J 


1879.52 


184.7 


9-77 


7.8. 


. 10.6 


Vi 


/? 


1880.24 


184.6 


9.68 






m 


Pt 


1884.01 


185.6 


9-94 


7-5- 


• 9-9 


5>i 


En 


1899.07 


184.1 


9.66 


7-7- 


. 1 1.0 


m 


/? 



Discovered with the 6-inch. There is no indica- 
tion of any change. 

[/3 (vil). . .j3 (2103). . ./33. . .A (i). . .Pritchett [Pub. Morrison 
Obsy. l). . .Engelmann {2678) . . . ] 

P 211. Hydrae 68 

R.A. 8" SS" 44= \ 
Decl. + 3° 9' i 



1875.27 


257-7 


1.11 


7.5.. 


10. 


in 


J 


1877.25 


254-4 


1.08 


7-5-- 


9-5 


III 


05 


1879.27 


261.9 


1.08 


7.0. . 


9.0 


III 


Cin 


1886.30 


260.0 


1.46 






2« 


H5 


1888.51 


262.0 


1.05 


7.1.. 


9.1 


2« 


Ev 


1890.20 


262.5 


I.I 2 






2// 


T 


1892.25 


264.3 


1.02 






2« 


Sp 


1893.26 


261.2 


0-99 






VI 


Sp 



Discovered with the 6-inrh. It is probably un- 
changed. Lalande 17831. In the field with 2 1302. 

[^ (ivi. . ./3 [Man. Not. xxxiv. 3S2) I (0. . .CinS. . .Lv-. . . 

OS [Poulkova Obsns. x). . .Tarrant (31S6). . .Sp (in). . . 



I04 



General Catalogue of Double Stars 



P 410. B.A.C. 3127 

R.A. q'' 4'" 30^ \ 
Decl. — 25° 19' S 



1877. II 


160.5 


1.78 


7-5-- 


. 9.0 


211 


Cin 


1892.24 


160.9 


1.63 


7-3- • 


. 9.2 


3« 


Lv 


1892.24 


161. 2 


1.67 


7.6.. 


. 8.6 


yi 


/8 


1898.16 


163.7 


2.13 






\ii 


See 



Discovered with tlie 6-inch. Unchanged. In 
Cord. G. C. 7.0 m. 

[/i (VII)... /3 (2103, 3l4l).../3 (Puh.L. O. II).. .Cin''...Lv {A. 
J. 27S) [Proc. Haverford Coll. Obsy. 1892). . .See ( ). . .] 



P 104. Lalande 181 34 

R.A. 9" 5'" 19^^ I 
Decl. -f 0" 47° \ 



1875-15 


107.7 


3-30 


7.0. 


.11.8 


i" 


J 


1877.25 


1 1 1.6 


2-95 


7-0- 


. 10. 


\/i 


02 


1880.29 


1 10. 1 


2.85 






in 


Pt 


1886.31 


106.8 


3-35 






in 


H2 


1892.13 


106.8 


2.88 


7.0. 


. I I.O 


yi 


/? 


1899.09 


104-5 


2.79 


7-0. 


.10.7 


1)1 


/3 



Discovered with the 6-inch. Probably fixed. 

[/3 (11). . ./3 {Mon. Not. xxxill, 437). . ./3 (3141). . .(3 {Pub. L. 
O. II)... J (l)...02 (Poulkowa Obsns. x) . . . Pritchett 
[Pub. Morrison Obsy. l) . . . HS ( ) . . . ] 



P 336. Lalande 18173 

R.A. 9'' 6'" 11= \ 
Decl. — 16° 19' \ 



1876.17 


238.2 


1-93 


8.7.. 


• 9-5 


2n 


A 


1878.05 


239-9 


1.82 


8.2. . 


. 9.2 


2n 


Cin 


1898.20 


236.3 


1.92 


8 . . 


• 9 


y^ 


D 


1898.24 


236.7 


1.85 






\n 


See 



Discovered with the 6-inch. No relative motion. 

[/3 (vi).../3 (2062)... z) (i)...Cin''. ..Cin5...Doolittle [Pub. 
Flower Obsy. l) . . . See ( ) . • • ] 





p 


908. S.D. (7") 


2763 










R.A. 9'> 8'" 25' 


\ 










Decl. — 7° 47' 


\ 










B and C 








1880.29 


234.6 


0.82 9.2. 


. .11.0 


3" 


^ 


1892.21 


230.7 


0.74 9.2. 

A and EC 


. . 10.6 


2 J/ 


/8 


1880.25 


184^6 


60.56 9.0. 


. . 9.1 


2)1 


/8 


1892.21 


184-5 


60.58 8.6. 




2n 


^ 


1899. 1 1 


184-3 


60.88 8.5. 


.. 8.7 


2« 


yS 



Discovered with the 18^-inch. B is S.D. (7°) 
2762. There is a 12.5m star in the direction of 
222° from A. 
[j3 (XIII). . .^3. . ./S (3141). . .j3 {Pub. L. a II). . .J 



P 455- Lalande 18231 

R.A. 9'' 8'" 34^ { 
Decl. + 4° 43' \ 

O II 

1877-30 65.2 
1888.95 70.3 

1898.20 69.5 

Discovered with the 6-inch. Change uncertain. 
Magnitude in L, 71^ ; D.M. 8.1. 

[/3(ix).../3 {Mo)!.Not xxxvui, 78) ... Hall (i) (2147). .. Lv- 
. . . Doolittle ( Pub. Flower Obsy. I ) . . . ] 



1.94 


9-5-- 


.10.5 


2« 


Hi 


1-93 


8.2. 


. 10.2 


3« 


Lv 


1. 81 


8+. 




3« 


D 



P 212. Hydme 95 

R.A 9'' 10"' 1 1' I 
Decl. — 7° 51' ( 



1875.61 


230-5 


1.48 


1878.23 


225.8 


1.36 


1880.50 


228.9 


1.26 


1880.55 


223.9 


1-51 


1885.23 


225.6 


1.47 


1887.01 


223.8 


1-59 


1888.56 


225.4 


1-35 


1890.20 


227.4 


1-34 



8.2 


2« 


J 


7-7 


4« 


Cin 


8.2 


4« 


/8 


8.5 


yi 


Sp 


8-5 


m 


W 


8.0 


in 


LM 


7-9 


VI 


Lv 


10.0 


y 


T 



Discovered with the 6-inch. The change, if any, 

is very slow. Lalande 18296. 

[/3 (iv)...j3 (yl/y«. Not. xxxiv, 382). ..zl (l). . .(S^. . .CinS 
...Wilson (Cin") . . . LM . . . Lv". . . Sp (il; .. .Tarrant 
(3186)...] 



Discovered from. iSji to i8gg by S. W. Burnhaat 



105 



P 588. Hydrae 96 



R.A. gh 10'" 30^ 
Decl. + 1° M' 



1878.19 


123.2 




2.38 


6 5 ... I J. 


in 


/3 


1892.05 


125-1 




2.45 


7.1 ... 1 1.2 


yi 


/8 


1886.31 


I 24.1 




2.72 




211 


H2 


1899.09 


129.4 




2-43 


7.0. . . 10.2 


211 


/8 


Discovered \v 


th 


the 


1814-inch. N 


sensible 



motion. Lalande 18302. In Heis 6-7 m ; D.M. 6.8. 

[^ (X). . .;3'. . .^ (3141). . -^ {Pub- Z. O. II). . .HS ( ). . .] 

P 337- Lalande 18502 

R.A. 9'' 16™ 54'- \ 
Decl. — 17° 23' \ 



1876.17 


320.8 




7.70 


7.0. . . 1 1.0 


211 


J 


1877-13 


322.3 




8.00 


7.2 .. . 10. 


2)1 


Cin 


1892.19 


326.8 




7-83 


7.0 ... 10.2 


2>" 


Lv 


1898.29 


325-5 




8.16 




111 


See 


Discovered wi 


th 


the 6- 


inch. Unchan 


std. 





[(3 (VI)... |3 (2062)... Zl (i)...Cin-'...Lv (A.J. 278) {Proc. 
Haverfofd Coll. Obsy. 1892) . . . See ( ) . . . ] 





P 


338. Lalande 


18518 










R.A. 9'' 


17"' i5» 


( 










Decl. — 


14° 59' 











// 










1876.17 


274-3 


6.65 


8.2 


. . 10.0 


211 


J 


1877.12 


274-3 


7.14 


8-5 


- - 9-5 


2tl 


Cin 


1893.24 


274.2 


7.24 


9.0 


■ -10.5 


2 71 


J 


1893.64 


276.3 


6-97 


8-3 


. .10.2 


yi 


W 


1898.16 


273-5 


7.41 






111 


See 


1899.09 


274.2 


6.78 


8-3 


--10.5 


2n 


i8 


Discovered wi 


th the 6- 


inch. 


Without 


change. 



[iS (VI). . ./S (2062). . ./J (1). . .Cin*. . .Jones {A.J. 312). . .VVil 
son ( ). . .See ( ) . . . ] 



p 105. K Leo ids 

R.A. 9'' 17"' 40^ \ 
Decl. + 26° 42' \ 



1876.20 203.8 
1877.75 208.8 



3-05 
3.22 



4. 9... I 0.7 5// 
5.2... 9.2 211 



J 
05 



1878.33 


203.8 


2 


88 


5 • 


. 1 1 


211 


HI 


1879.06 


202.4 


2 


89 


4-5- 


.10.5 


Ml 


H 


1881.30 


205.0 


3 


00 






111 


Pt 


1883.47 


205. 1 


3 


36 


5-1- 


. 10.2 


8;z 


En 


1886.23 


202.2 


3 


37 






y^ 


H2 


1889.13 


203.9 


2 


79 


4-5- 


. 10.9 


y 


ft 


1898.27 


205-3 


2 


96 


4 - 


.11.3 


y 


A 



Discovered with the 6 inch. A fine pair even 
with a small aperture. The measures thus far show 
no relative change. Auwers gives the proper mo- 
tion, ofo57 in the direction of 23i?7. With this 
value, and the position of B in 1876, as found by 
J, the relation at the date of the last measure in 
1898 should be, 187° : 2^0; so it is obvious that 
the companion has the same proper motion. 

Engelmann suspected a star 1 1 m distant 10" in 
the direction of 65°. The 36-inch does not show 
any other companion. 

[/3 (II). . .;8 {Mon.Not. xxxiii,437) . . ./S3. . ./3 (2930). . .^(Pub. 
L. O. \l)...A (l)...OS [PonlJko'va Obsns. x)...Hall (l) 
. . . Pritchett {Pub. Morrison Obsy. l) . . . Burton {Copernicus 
I, p. 54) . . . Engelmann (2678) . . . Aitken ( ) . . . H2 
( )-.-] 



P 1070. D.M. (26") 1940 



R.A. 9'- 18" %■" 
Decl. + 26° 47' 



1889.13 
1898.43 



71.8 
74-6 



0.50 
0.34 



9.1 

10 



.10.2 
. 10 



in A 



This close pair of small stars, discovered with the 
36-inch, is 27' / and 4.'8 n of k Leonis (ft 105). 
The magnitude in D.M. is 8.8. 
[/3 (XV)... iS {2g2g)...^ (Pub. L. O. 11)... Aitken ( 



P 589. Lalande 18585 

R.A. 9'' 20"' 15^ \ 
Decl. + 7° 3' i 



1878.08 219. 1 
1886.31 213.3 
1892.06 218.9 



2.30 



3-13 



-5-- -12.5 



\fi ft 
211 H5 

y ft 



Discovered with the 18 '..-inch. 
[/3(x).../3'.../i(3i4i)(/''"';. L. O. II)... 112 ( )...] 



io6 



General Catalogue of Double Stars 



P 590. 29 Hydme 



1878.16 176.9 

1878.17 176.8 
1891.27 176.0 
1899.00 174.7 



R.A. 9' 

Decl. — 

10.10 
10.80 
10.95 
10.52 



21™ 22^ ^ 

8° 42' S 

7 5 ... 1 1.7 211 Cin 

6.7 ... I 1.7 211 (3 

6.0. . . I i.o 2;/ f3 

6.5 . . . 12.7 2n (3 



Discovered with the i8j-2-inch. Relatively fi.xed. 
The principal star has a proper motion of oro68 in 
the direction of 268? 3 (Auwers), which seems to 
belong to the companion, as otherwise its angle 
should have diminished 8° in the interval covered 
by the measures. 

[^(x)...;3'...,3(3ii4)...Cin5...] 



P 213. Lalande 18648 

R.A. gh 22™ 255 [ 
Decl. - 7= 34' \ 

O II 

1875.76 177.2 1.60 8.0. ..10. 5 2n J 

1879.19 176.8 1.34 8.0...10.0 2f! Cin 

1892.09 179.5 1-62 8.0... 9.4 yi (3 

Discovered with the 6-inch. Unchanged. This 
pair is 34 J^ ' /? of a Hyd?ae. 

[^ (iv). . ./3 {Mon. Not. XXXIV. 382). . ./3 (3141). . .^ {Puh. L. 
O. ll)...J (l)...Cin5...] 



P 591. WMX. 477 



R.A. 9'- 23" 33= 



Decl. 



2° 36' 



1878. II 


35-8 


0-73 


7.7. . 


8-5 


211 


/3 


1878.21 


31-9 


0-73 


8.0. . 


9.0 


\n 


J 


1884.03 


39-8 


0.67 


7-5-- 


8.5 


S" 


En 


1886.21 


44-8 


0.60 


•7 


8.0 


2)1 


T 


1890.26 


31.8 


0.66 






4)1 


Sp 


1892.08 


35-4 


0.72 


8.0. . 


8.7 


3« 


/8 


1892.57 


34-8 


0.74 






6)1 


Sp 



Discovered with the 1 8^4 -inch. Without change. 

[j3(x).../3'...^(3I4l)...^(/'z/(^. Z. O. II).. .J (i).. .Tarrant 
(2866). . .Engelmann (2742). . .Sp (iii). . .] 



P 1071. 6 Ursae Majoris 

R.A. gh 24™ 495 ) 
Decl. + 52= 13' \ 



1889.23 


74.9 


5-09 3 • 


••I3-7 


yi 


/3 


1890.38 


79.1 


4.87 


• ■13-5 


v^ 


/3 


1892.05 


75-3 


515 


. . 14-2 


yi 


/3 


1898.27 


76.4 


5.22 


. . 14.0 


\7l 


^ 


1898.34 


87.1 


5.00 




\n 


L 


1898.49 


78.4 


5.06 


. ■ 14 


2)1 


A 



Verv minute companion discovered with the 36- 
inch. It was obvious from the measures made with 
that instrument, in connection with the large proper 
motion of the principal star, that the two consti- 
tuted a physical system. Auwers {Fu>ida7>ientai 
Catalogue) gives this proper motion, i.'ioi in the 
direction of 240? 2. The measures to this time 
show no sensible relative motion. If the small star 
was fixed in space, the distance at the date of the 
last measure would be 15.'! and the angle 65°. 

[/3 (XV)... |3 (2929,3048,3141).. ./3 (Pub. L. O. 11)... Lewis 
[Man. N^ot. Lix, 400). . ..Aitken ( ). . -] 



P 339- Lalande 18737 



R.A. gi^ 25" 17= 
Decl. — 15° 13' 



1876.17 


215.8 


1.28 


8.8. . 


. 9-6 


2)1 


J 


1878.53 


215. 1 


1.32 


8.5.. 


- 9-3 


\n 


Cin 


1885.23 


220.2 


1.50 


8.5. 


• 9-5 


in 


W 


1888.23 


219.3 


I-3I 


9.0.. 


. 10.2 


\n 


Lv 


1898.31 


218.0 


1-35 






1)1 


See 



Discovered with the 6-inch. No sensible change. 

(vi) . . . (3 (2062) . . . Cin5 . . . Wilson (Cin'°) ...A (i) . . . LvV . . 
See( )...] 



P 909. Lalande 187 14 

R.A. g'' 25"" 25= [ 
Decl. + 22° 23 ) 



1879.48 91.5 5-66 

1892.17 91. 1 5.94 



7. 2... 12.0 yi /3 
7. 3... 12.0 yi 13 



Discovered with the i8>2-inch. There is no 
ange. 
[^ (xiii). . ./33. . .,3 (3141). . -P (P"l'- L. O. ii). . .] 



change 



Discovered from. iSji to i8gg by S. W. Burnham 



107 



)I0. Lalande 


8800 






R.A. 9'> 


27"" 10^ 


\ 






Decl. — 


13° 28' 


\ 






6.84 


7-7- 


. . 10.2 


3'' 


iS 


6.96 


7.0. 


•■ 9-5 


lU 


w 


6.68 


7-3- 


. .10.7 


yi 


1^ 


6-33 


7-4- 


..10.4 


2« 


J 



1879.87 304.9 

1882.15 304.7 

1892.06 305.9 

1893.22 305.0 



Discovered with the 183^ -inch. Probably fixed. 

[/3 (xill). . ./33. . .(3 {3141). . .(3 {P,(b. L. O. II). . .Wilson (Cin'°) 
.. .Jones (A.J. 312). . .] 



p 214. Lalande 19064 



R.A. gh 35™ 52^ 
Decl. — 17° 56' 



1875.28 261. 1 
1877. II 259.2 

1886.29 261.3 
1898.16 258.7 
1898.25 256.5 



Discovered with the 6-inch. The motion, if any, 
is slow. 

[/3 {iv)...p(Mon.Not. xxxiv, 382)... J (i). . .Cin^. . .LM . . . 
See ( )...Aitken ( )...] 



3-09 


7.2.. 


1 1.0 


2;/ 


J 


2.92 


7-5- ■ 


9.8 


2n 


Cin 


3.21 


8.0. . 


10.5 


in 


LM 


3-54 






in 


See 


3.21 


7.6.. 


I I.O 


3« 


A 



P 215, Lacaille 4058 







R.A. 9'> 


48 


"41^ / 












Decl. — 


27 


"26'i 








1877. II 


337-5 


1-75 




7-5-- 


. 9.0 


in 


Cin 


1884.21 


345-2 


1.88 




7-5- - 


- 9-5 


2;; 


W 


1893.32 


341-5 


1.52 




7 • • 


. 1 1 


in 


Sel 


1894.21 


345-0 


1.90 




7-5-- 


. 9-8 


in 


W 


1898.25 


339-7 


1.97 




7-5-- 


. 1 1.0 


V 


A 


1898.28 


346.0 


1. 71 








in 


See 



Discovered with the 6-inch. There is no evi- 
dence of motion. 

1/3 (IV). . ,j3 {Mon. Not. xxxiv, 382). . .Cin-«. . .Wilson (Cin-°) 
...Sellers (^240). . .Wilson ( )....-\itken ( )...See 
( )...l 



P 592. O. Arg. .S. 10209 

R.A. 9^ 49'" 16^ / 
Decl. — 15° 38' f 



1878.22 


191. 8 


9.80 


6.5. 


- -12.5 


2« 


/? 


1879.27 


191. 7 


9-57 


7-5- 


. . 12.0 


in 


Cin 


1879.82 


191. 6 


9.86 


6.6. 


. .11.7 


3« 


/? 


1883.17 


191. 2 




6.0. 


• •13-0 


1)1 


W 


1898.28 


193.0 


9-95 






1)1 


See 



Discovered with the i8j/^-inch. Fixed. 
[^ (x). . .^'. . .i33. . .Cins. . .Wilson (Cin'°). . .See ( j. . .] 



P 216. Lacaille 4074 

R.A. ^^ 51'" 20= ) 
Decl. — 25' 59' \ 



1877.20 


161. 2 


3.08 


6.0. 


. . 11.2 


2n 


Cin 


1879.27 


161. I 


2-57 


7.0. 


. . 12.0 


in 


Cm 


1894.23 


164.2 


2.97 


7.0. 


..II. 5 


in 


W 


1898.16 


162.2 


4.00 






in 


See 


1899.02 


160.2 


3-37 


6.5. 


. . 10. 


in 


^ 



Discovered with the 6-inch. 

t/3 (iv). . ./3 {Mon. Not. xxxiv, 382) 
( )...See( )...] 



Probably fixed. 
.Cin*. . .CinS. . .Wilson 



P 1072. Lalande i 

R.A. ()^ 58" 20=^ \_ 
Decl. — 17° 31 ' \ 



6.9.. 







A and B 


1889.13 




42.6 


10.90 6 


1898.34 


43-5 


1 1. 16 


1899.04 


43-9 


10.94 



. I 



3" 


^ 


III 


See 


2;/ 


/? 



A and C (= Sh 1 10) 



1823.34 


272.7 


21.50 


7.0. . 


• 7-5 


in 


Sh 


1889.13 


273.2 


21.23 


6.9.. 


■ 7-1 


3« 


/3 


1898.34 


273.0 


21-45 






m 


See 


IS99.04 


273-8 


20.84 


7.0. . 


/ -- 


zn 


/3 



The faint companion to the principal star of 
H'N.25 ( = Sh no) was added with the 36-inch. 
All the measures of .\C are given above. These 
stars appear to be fixed. Thev are Cord. G. C. 
13722 and 1372 I. 
[^(xv).../3(2929).../3(/W'. L. O. 11)... See ( )...] 



io8 



General Catalogue of Double Stars 



P 217. Cord. G. C. 13789 



R.A. 10'' I" 17^ 
Decl. — 24° 18' 



1868.17 


276.0 


1.66 






\)i 


Hd 


1876.10 


94-9 


1.90 


7.9. . 


. 8.0 


4;/ 


Cin 


1878.47 


274.1 


1.85 


7.8.. 


• 7-9 


3« 


Cin 


1880.22 


277.6 


2.08 






\n 


Cin 


1882.18 


274.6 


2.03 


7.7. . 


. 8.0 


211 


W 


1893.32 


279.7 


1-75 


7/2.. 


• 1% 


2n 


Sel 


1898.22 


282.0 


1.90 






\n 


See 



Discovered with the 6-inch. Probably without 
motion. It had been previously seen by the Har- 
vard observers, but not published until after /8 (iv). 

[^ (IV). . ./3 {Mon. Not. xxxiv, 382). . .Cin3. . .CinS. . .Cin^ . . 
Wilson {Q.\n^°) ... Annals Harvard Obsy. xill ... Sellers 
(3240)... See ( )...] 



P 218. Lalande 19765 







R.A. 10" 


I" 41= 












Decl. — 


19' 7' \ 








1875.26 



122.6 


0.99 


7.9. . 


8.4 


4« 


A 


1877.12 


120.8 


0.99 


8.0. . 


8.2 


2« 


Cin 


1878.53 


121.9 


0.97 


7.9. . 


8.4 


V 


Cin 


1880.27 


117. 9 


0.96 


8.0. . 


8.2 


m 


^ 


1888. II 


120. 1 


0.91 


7.5- ■ 


7-9 


2« 


Lv 


1892.14 


124.4 


0.91 


8.0. . 


8.1 


3« 


/8 


1898.26 


I 22.7 


0.92 






m 


See 



Discovered with the 6-inch. The measures show 
no motion. This is the / star of a small equi- 
lateral triangle. 

[/3 (IV)... (3 {^Mon. Not. xxxiv, 382). . . /33. . .;3 (3142)... (3 
(Pub. L. O. II)... 4 (i) ...Cin"... CinS... Lv'... See 

( )...] 



P 911. Lalande 19780 



R.A. lo'" 2"' 4i=j 
Decl. — 19° 10' 



1880.25 311. 5 
1892.10 313.4 



A and B 








4-75 7-5- 


.11.2 


21! 


/3 


4-77 7-3- 


.10.7 


yi 


li 



1898.25 


310.0 


4.80 






in 


See 


1898.25 


310.0 


4.84 


7-7- - 


. 12.0 


3« 


A 


1899.13 


314.0 


4.49 
A ar 


8.0. 
id C 


. 12.0 


If! 


/8 


1880.26 




83.1 


;/ 
47-30 




- 9-3 


in 


/8 


1892.10 


79.1 


49-34 




. 10. 


3« 


/8 


1898.25 


77.0 


50.85 






\n 


See 


1898.22 


76.1 


50-69 






in 


D 


1898.25 


77-4 


51-29 




- 9-7 


yi 


A 


1899.13 


76.7 


51.20 




. . 10. 


\n 


/3 



Discovered with the 18^ -inch. The principal 
star has a large proper motion : 



Radcliffe 
Porter - 



C.364 in 195.8 
0.365 in 207.2 



With the data given by Porter's value, and the 
measures of A and C in 1880, the position of C, 
if fixed, should be for 1898.25, 77?o : 51 ^26, which 
is practically identical with the actual measures 
made at Mt. Hamilton at the last-named date. 
The observations of AB show, beyond question, 
that the small star is moving in space at the same 
rate as A. 

[/3 (XIII)... (33... |3 (3i42).../3(/^«^. Z. O. 11)... See ( )... 
Doolittle {Pub. Flower Obsy. l) . . . Aitken ( ) . . . ] 



P 790. 



W X. 26 



1881.36 67.9 

1888.74 70.0 

1888.96 67.2 

1899.09 67.2 



R.A. lo" 4"" 5= 
Decl. — 12° 17' 



2.17 8.6. . . 10. 1 

2.18 9.0. . . 10.6 
2.13 9.2 . . . 10.4 
1.97 8.8. . . 9.5 



3« ;8 

yi Com 

4« Lv 

i« ji 



Discovered with the 15^ -inch at the Washburn 
Observatory. The measures show no change. The 
magnitude in S.D. is 8.8. It is 10'/ and 3. '8 s of 
a 6m star in Hydra. 

[/3 (xil). . .(3". . .Comstock (Pub. Washburn Obsy. vi)... 
Lv'...l 



Discovered from i8']i to i8gg by S. W. Burnham 



109 



p 593. X Hydrae 



R.A. 10'' 4'" 44" 
Decl. — 11° 46' 



4 • 


■ la-s 


\ii 


/8 


4 • 


• •13-3 


3« 


li 




• •13-5 


2H 


/3 



1878.23 II8.4 50.76 
1892.10 118. 8 53-58 
1898.98 117. 5 54.46 



The faint companion was noted with the i8j^- 
inch. The proper motion of A Hydrae is given by 
Kvw¥.RS {Fundamental Catalogue) as 0^227 in the 
direction of 253?3. This movement explains the 
change in the position of B. 

[ft (X). . .p\. .§ (3142). . .p [Pub. L. O. II). . .J 



P 25. W X. 242 







R.A. io>' 
Decl. — 


15 
9 


-46^ 
" 10' 


\ 








1867.10 


187% 




o!'88± 








i;/ 


Hd 


1872.76 


185. 1 




1.81 




8.6 




9.0 


2)1 


Du 


1875-23 


180.5 




1.76 




8.4 




9.0 


491 


A 


1878.23 


179.6 




1.66 




8.0 




9.0 


2// 


Cin 


1880.24 


180.8 




1.85 










m 


Pt 


1 88 1. 1 9 


180.9 




1.78 




8.1 




8.6 


V 


^ 


1886.30 


178.9 




1.96 




8.0 




9.0 


\n 


LM 


1888.22 


178.6 




1.86 




8.0 




8.8 


2)1 


Lv 


1890.22 


176-5 




1.79 










yi 


T 



Discovered with the 6-inch but il had been pre- 
viously seen by Schjellerup (A. N. 1485 ; Cata- 
alogite of 10,000 Stars, p. xxiv). The measures 
are discordant in angle, and there is probably no 
sensible motion. 
[/3 (i). . .jS (Man. Not. xxxill, 351). . ./33. . .Annals Harvard 

Obsy. xill). . . J (1). . .Dun^r (Mesttres Microm. 1876). . . 

CinS . . . Pritchett [Pub. Morrison Obsy. 1) . . . LM . . . Lv' . . . 

Tarrant (3186). . .] 



P 219. Hydrae 214 







R.A. lo^ 


15 


"56^ / 
°55' \ 












Decl. ~ 


21 








1876.14 


i88°6 


2-33 




7-5- -• 


9-2 


3« 


Cin 


1878.70 


188.5 


2.05 




6.7... 


8-7 


\)i 


Cin 


1892.21 


188.1 


2.14 




7.0. .. 


9.1 


4" 


Lv.C 


1892.26 


186.4 


2.07 




7.0. .. 


8-5 


VI 


/8 


1898.16 


187.7 


2-77 








1)1 


See 


1899.26 


186.9 


2-15 




7-5- •■ 


8-3 


\ii 


/S 



Discovered with the 6-inch. Evidently fixed. 
The principal star is 6.5 m in Cord. G. C, No. 141 26. 

[(3 (iv). . ./3 [Mon. Not. xxxiv, 382). . ./3 (3142). . ./3 {Pub. L. 
O. II)... Cin3...Cin5... Collins and \.y [A. J. 2-ji)[Proc. 
Haverford Coll. Obsy. 1 892) ... See ( ) . . . ] 



P 912. W X. 253 



R.A. I oh 16"" 26= 
Decl. — 13° 4' 



1879.17 T06.3 

1880.24 101.4 

1883.16 100. 1 

1894.19 106.0 

1898.30 104.4 



0-95 



8.6. . .11.9 

8.5- 



9.0. 
1.30 9.0. 
1. 14 8.1. 



211 



. I i.o \n Cin 

. 1 2.0 2« W 

.11.8 211 W 

. 10.6 4// A 



Discovered with the 6-inch. Probably without 
change. The magnitude in S.D. is 8.7. 

[^ (xill)... ^3... Cin«... Wilson (Cm""). ., Wilson ( )... 
Aitken ( )...] 



P 1280. Lalande 20225 



R.A. 10'' 19"" 55= 
Decl. + 4" 33' 



B and C 



1892.06 ... I zh 

1899.40 17.8 0.S8 



9.1 ... 1 1.7 2)1 \ 



A and BC 

o // 

1899.25 191. 5 116.26 "J. 2 



8.8 3« 13 



An examination of my observing book at the 
L.O. shows that the small star of this wide pair 
was noted as double with the 36 inch on January 
22, 1892, and estimated as given above. It was 
forgotten, and not subsequently examined. I have 
looked at it several limes with the 40-incli. and on 
one occasion it had the appearance of being 
double. It must be a difficult object, and the dis- 
tance is probably less than i ". 

These stars are 6.6 and 8.5 in Boss {.4.G.C.). His 
positions for 1875 &'^'^ 190^2 : 116. '50. 

[Since the foregoing was written. I have received 
from Aitken the measures of the close pair inserted 
above.] 
[Aitken ( )...] 



no 



General Catalogue of Double Stars 



P I281. Lalande 20278 



R.A. io>' 21" 18= \ 
Dec). + 4° 10' \ 



1899.26 71.5 



0.S7 



8.2 ... 9.7 4;/ /? 



This was discovered with the 40-inch in looking 
for the last preceding pair (y8 1280). It is not diffi- 
cult. According to Boss (A.G.C.) this star has a 
proper motion of o!'i49 in the direction of 264?2. 
The magnitude in D.M. is 7.5. It is certain to be 
a physical system, since the components must have 
a common proper motion. 



P 1073. Sextantis lOi 







R.A. loh 26'" 26^ } 












Decl. — 5° 27M 








1889.29 




46.9 




3.02 7.0.. 


.11.5 


y 


/? 


1898.13 


46.8 


3.42 7.0.. 


.11.8 


■zn 


A 



Discovered with the 36-inch. No material 
change. Lalande 20428. Magnitude in L 6^ ; 
in S.D. 7.2. 
[j3 (.KV).../3(2929)...(3 {Pub.L. 0. n)...Aitken ( )...] 



p 1269. 44 Hydrae 

R.A. 10" 28" 18= \ 
Decl. — 23° 8' f 



1892.23 


63.8 


18.33 


1898.22 


59-7 


19.09 


1899.04 


59-9 


18.75 



14 



• 13-2 



i« /3 
in See 
2« /? 



Distant companion noted with the 36-inch. The 
principal star has a proper motion of 0^047 in the 
direction of 309?9 (Auwers). 
[^(xix).../3(3i4i)...^ {Pub. L. O. n)...See { )...] 



P 1074. Lalande 20453 



R.A. lo^ 28'" 20=^ 
Decl. -\- 46° 16' 



1889.27 208.4 2.10 6. 4... II. 2 yi /8 

1899.33 205.0 2.50 6. 5... 1 1. 2 2« A 

Discovered with the 36- inch. The magnitude in 
D.M. is 7.2. 
[/3(xv).../S(2929)...^(/'«(5. Z. O. ii)...Aitken ( )...] 



P 411. Lacaille 4360 







R.A. loh 


30 


m 25s 

° 3' i 












Decl. — 


26 








1878.28 




294.6 


n 

1-33 




6.7.. 


8.0 


2n 


Cin 


1892.28 


288.3 


1.08 




6.4.. 


8.2 


3« 


/3 


1892.30 


290.6 


1.29 




6.8. . 


8.5 


4« 


Lv 


1893.32 


287.6 


1. 00 




7 ■• 


8.0 


2« 


Sel 


1898.16 


278.8 


0.87 








I« 


See 



Discovered with the 6-inch. Change is uncer- 
tain. A naked-eye star according to Heis. In 
Cord. G. C. 6.6 m Hydra. 

[/3 (VII). . .^ (2103,3141) . . .^(Pub. L. O. II). . .Cin'i. . .CinS. . . 
Collins and Lv {A. J. 278) [Proc. Haverford Coll. Ubsv- 
1892). . .Sellers (3240). . .See ( ). . ■] 





p 


1075- 

R.A. loh 


30' 


Hydrae 

"25= I 
' 43' S 










Decl. — 


15 






1889.14 




277.1 


U 

3-03 




6 ...13.0 


3« 


/? 


1898.22 


283.1 


2.92 






m 


See 


1899.02 


275-3 


3-25 




...13.1 


2« 


i8 



Discovered with the 36-inch. Auwers gives the 
proper motion of the bright star, 0^065 in the 
direction of 287?o. This is nearly in the line of 
the companion, so that it will soon be a very diffi- 
cult object if the companion does not have the 
same movement. The measures point to common 
proper motion. 

[^ (.Kv)...i3 {2<)2g)...^{Pub. Z. (9. II)... See ( )...] 



P 913. 40 Leonis Minoris 







R.A. iqI' 


36"" 26= 












Decl. + 


26° 57' 












A and B 








1880.30 



122.8 


10.92 


6.0. . 


.13.0 


4;/ 


iS 


1892.14 


119. 9 


12.27 


6.0. . 


. 12.7 


y 


/S 


1898.34 


II9-3 


12.85 


6.0. 


.13.0 


3« 


A 


1899.02 


118. 1 


13.10 




.12.5 


i« 


y8 



A and C 
1898.31 77.3 39.71 ...14 \n A 



Discovered from i8ji to i8gg by S. W. Burnham 



1 1 1 



A and D 
1899.02 275.9 55-75 •••13-5 i« /^ 

Discovered with the 18}^ -inch. The distant star, 
C, was added by Aitken with the 36-inch. Porter 
gives the proper motion of the principal star, of 131 
in the direction of 259?7. This seems to account 
for the change in the companion. 

[/3(xill). . .(33. ..^(Ast. Reg. xvill, 140). . .i3(3i42). . ./3 (Pub. 
Z. (9. 11).. .Aitken ( )...! 



P 914. Lalande 20750 



P 915- D.M. (25°)2303 



1880.27 338.6 
1894.24 337.8 



R.A. 10^' 39"" 46* 
Decl. — 10° 14' 



1.30 6.8. . . 1 1.4 2« ji 
1.46 7-7 .. • 12.0 2« W 



Discovered with the 18^ -inch. 
[/3 (.XIII)... ^3... Wilson ( )...] 

P 595' Lalande 20804 







R.A. lo" 


41 


^ 48= 












Decl. — 


14 


°29' 













M 












1878.21 


14.6 


2.32 




9.0. 


. I I.O 


in 


^ 


1879.20 


17.8 


2.00 




8.5. 


. 10. 


in 


|8 


1880.26 


I8.I 


1-95 






. 


m 


Pt 


1884.99 


13.0 


1-95 




8.1. 


.10.5 


?>n 


VV 


1898.26 


12. 4 


2.24 




9.0. 


.10.5 


VI 


A 



Discovered with the 18^ -inch. Probably with- 
out change. 

[^ (x). . .|3'. ../33. . .CinS. . .Wilson (Cin'°). . . Pritchett {Pub. 
Morrison Obsy. 1) . . . Aitken ( ) • . • ] 



P 596. Lconis 222 

R.A. 10'' 43" 2' \ 
Decl. + 17° 47' i 

o ;/ 

1878.26 277.3 2.38 6. 5... 13 2;/ ft 

1886.22 274.7 2.96 ... 2;/ H2 

1891.28 278.6 2.56 6. 7... II. 7 yi (i 

Discovered with the 18^2 -inch. Unchanged. 
Lalande 20827. 

(x)...fi\..fi(iii^)...jiyPub.L. O. ii)...112( )...] 







R.A. 10'' 43"" 13= 


/ 












Decl. -|- 24 


' 55' 


f 








1880.37 




232.9 


1. 18 


9.0. 




9.2 


2n 


a 


1892.30 


232.5 


0.7 dr 


9.0 




9.0 


An 


Lv 


189535 


226.7 


1. 14 








m 


Lew 


1896.52 


231.2 


1.26 








2n 


A 


1897.30 


226.2 




. 


. . 




m 


Bow 



Discovered with the 18^-inch. Apparently 
without change. Near 2 1478. 

1/3 (xiIl).../33...Lv (A.J. 278) (Proc. Haverford Coll. Obsy. 
1892). . .Lewis (Mon. iVo/. LVl, 359) (Greenwich Obsns. 
1895) . . . Aitken (3395) . . . Bowyer (Mon. Not. Lix, 
400)... J 



P III. S.D. (8") 3023 







R.A. IQh 


45-" 11' / 
8" 28' \ 










Decl. — 






1875.21 




3-3 


3-32 


9.9. . .10.3 


V 


J 


1880.66 


6.3 


3-59 


9.0... 9.3 


in 


/? 


1881.28 


6.2 


3-51 




m 


Pt 


1884.57 


5-0 


3-65 


9.0... 9.3 


y> 


\\' 


1886.30 


VI 


3-54 


9.0 . . . 9.0 


\n 


LM 


1888.24 


5-4 


3-51 


9.4. . . 9.5 


5« 


Lv 


1898.25 


4.6 


3-52 


9.0 . . . 9.0 


yi 


A 



Discovered with the 6-inch. Without change. 

[/S (hi). . ./3 (Mon. Xot. xxxiv, 59). . ,;S3. . . J (i). . . LM . . . Lv- 
. . .Wilson (Cin"°). . . Pritchett (Pub. Morrison Obsy., l) . . . 
Aitken ( ). . .] 



P 597- 1).M.(24 )22S5 

K.A. 10'' 48"" 20^^ } 
Decl. + 24^' 24' \ 



1878.22 46.9 
1894.24 46.2 



o.SS 
0.79 



8.5. 



!// P 



8.8 ... 10.7 3// W 



Discovered with the iS^j-inch. 
1/3 ,x).../3'...\Vilsion ( )...] 



I 12 



General Catalogue of Doiible Stars 



P 1076. 55 Leo7iis 

R.A. 10'' 49™ 32= \ 
Decl. + 1° 23' ^ 



1889.28 49.7 
1898.22 35.0 
1899.12 31.9 



0.99 5. 8... 10. 3 yi ^ 
0.88 6.0. . . 10.7 3« A 
0.82 6.0. . . 10.5 \n A 



Discovered with the 36-inch. Auwers gives the 
proper motion of this star of 086 in the direction 
of 84? 7. It is obvious from the measures that, if 
this value is approximately correct, the movement 
belongs to both components, and that the compan- 
ion has a retrograde motion around the primary. 
With this proper motion, and the relation given by 
the measures of 1889, the position of the compan- 
ion in 1898, if fixed in space, should have been 
35«°i:o:'57. 

[/3 (xv)...^ (2929)... /3 {Pub. L.O. ll)...Aitken ( )...] 



P 598. 59 Leonis 

R.A. 10*' 54"' 32= \ 
Decl. -f 6° 45' \ 



1878.24 220.9 

1892.12 221.2 

1898.26 221.3 

1898.96 220.5 



46.76 5-5---I3 i« fi 

46.05 5. 7... 13. 4 3« y8 

46.40 5.5 . . . 14.0 2« A 

46.83 ... m ^ 



Discovered with the iS^^-inch. The proper 
motion of 59 Leonis from Auwers is o!o85 in the 
position angle of 270°. 

[/3(x).../3'.../3(3i42)...(3 {Pub.L. O. 11 ) . . . Aitken ( )...] 



P 1077. a Ursae Majoris 



K.A. 10'' 56'" 19' 
Decl. 4" 62° 24' 



1888.19 326.1 

1890.26 320.1 

^890. 53 316.7 

1891.30 316.8 

1892.11 311. 5 

1893.49 308.9 

1895.25 305.5 

1896.30 301.4 

1897.81 295.4 



0.9 I 
0.87 
0.81 
0.80 
0.78 
1.03 
0.85 
0.84 
0.84 



II. 1 


A" 


/? 




A>i 


/3 




V 


H2 


I I.O 


A" 


/8 


I 1.0 


y 


/8 




2)1 


Bar 




\U 


Coin 




2« 


Com 




\n 


/3 



1898.35 291. 1 0.54 ... m p 

1899.17 277± o.6d; ... in k. 

This interesting system was discovered with the 
36-inch. The measures at Mt. Hamilton were 
sufficient to show that it was a binary, since the 
proper motion of the principal star would have been 
apparent after a short interval in the changed posi- 
tion of the companion. Auwers [Ficndamental 
Catalogue) gives the proper motion of a Ursae as 
of 149 in the direction of 240? 2, and it was evident 
at the time it was first seen double that the com- 
panion had the same movement in space, as other 
wise it would have been recorded as a double star 
long before. The orbital motion is retrograde, and 
thus far about 3? 5 per year. There seems to have 
been no great change in the distance. It is not 
improbable that this is about the maximum dis- 
tance, and that it may prove to have a short period. 
With a much nearer approach it will be difficult, if 
not impossible, to measure with the largest instru- 
ments now in use. 

The principal positions are shown on the accom- 
panying diagram : 



1^0° 



90^ 




Scale 
a Ursae Majoris J3i077 

There is a small star 384 f 95 distant from a in the 
direction of 203?5 (1881.12) which has nearly the: 
same proper motion, of222 in 232?5. 
[/3 (xv) . . ./3 (2891,2929,2979,3048,31 14,3142). . .^ [Knoivled^e,. 
July 1891). . ./3 {Pub. L. O. 11). . .Comstock {Pub. Wash- 
burn Obsy. x)... Barnard {A.J. 417)... H2 ( )... 
Aitken ( )...] 



Discovered from ^Sji to i8gg by S. W. Burnham 



1 1 



P 599. 65 Leoiiis 









R.A. iih 


o"'47= \ 












Decl. + 


2° 36' \ 








1878.20 




82.4 


1.78 


5-5-- 


II-5 


A,n 


^ 


1879.27 


84 


3 


1.47 


b.o. . 


9-5 


in 


Cin 


1886.28 


88 


7 


2.23 






2« 


H2 


1887.32 


87 





1.66 


5-5- • 


I I.O 


3« 


T 


1889.27 


88 


5 


1.78 


5-6. - 


10.5 


3« 


^ 


1893-34 


86 


7 


1.87 






2« 


Sp 


1894.24 


85 


3 


1.94 


6.0. . 


10.8 


3;; 


W 


1899.13 


93 


2 


1-95 






IJl 


/3 



Discovered with the 18^-inch. Auwers gives 
the proper motion of this star of434 in the direc- 
tion of 262?!. It is obvious from the measures 
that this belongs also to the small star, and they 
must form a physical system. The relative motion 
appears to be direct. 

[/3 (x).../3'.../3(2930)...(3 {Pub. L. O. 11). . .CinS. . .Tarrant 
(2899)... Sp (III)... Wilson ( )...HS( )...] 



P 220. Crate ris 22 







R.A. 11'' 


5m 23S 












Decl. — 


17° SI' \ 













// 










1875.27 


143.6 


0.58 


6.4.. 


- 7-0 


211 


A 


1877.29 


150. 1 


0.65 


5-8.. 


. 6.2 


\n 


Cin 


1877-93 


143-5 


0-55 


6.4.. 


• 7-0 


10/1 


Sp 


1878.22 


140.0 




6.0. . 


. 6.8 


2H 


Cin 


1880.21 


323-S 


0.87 


6.0. . 


- 7-0 


i/i 


Cin 


1880.33 


151.1 


0.68 






III 


Pt 


1884.10 


149. 1 


0.45 


5.0.. 


. 6.4 


S'l 


En 


1887.27 


140.3 


0.58 






3« 


Sp 


1889.10 


136.1 


0.7 I 


6.1. . 


. 6.8 


4« 


Lv 


1890.24 


137.0 


0.65 


6.5.- 


- 7-0 


y 


T 


1893.38 


140.3 


0.66 


6.2.. 


. 6.6 


211 


J 


1898.16 


138.8 


0.44 






in 


See 



Discovered with the 6- inch. This is ip Crateris of 
Bode. In Argelander and HEis6m. Lalande 
21445. Very little, if any, change. 

£|8 (IV)... /3 {Mon. Not. x.\xiv, 382). . . J {\)...A (2086)... 
Cin■t...CinS...Cin^..Sp (2133)... Sp (11 app.). . . Prit- 
chett [Pub. Morrison Obsy. l) . . .Engelmann (267S). . .Lvi 
. . .Tarrant (3186). . .Jones {A.J. 312). . .See ( ). ■ .] 



P 1282. 8 Lconis 

R.A. u^ 7°' 43S ^ 
Decl. +21' 11' ^ 

B and C 

O II 

1889.09 i9o± i± 9. 5. ..12 /3 

A and BC 
1899-13 344-5 187.32 3 ... \n ^ 

I find in my L. O. Observing book, under date 
of February 4, 1889, with the 36-inch, noted, "The 
distant companion to 8 Leonis is a very difficult 
double," with angle and distance estimated as given 
above. I have examined this several times with the 
40-inch, but have not been able to see the close 
pair. As there was no doubt expressed of the 
duplicity of the small star, it is inserted here. 

[Since the foregoing was written I have received 
from AiTKEN a set of measures with the 36-inch, 
giving : 



1899.44 204.3 0-36 



9-3 yi 



There is, therefore, no doubt of the duplicity of 
this star.] 



P 916. Crateris 31 







R.A. 11" 


8- 4= 


! 












Decl. — 


14° 47' 













II 












1879.13 


36o± 


o.7±: 


7-5 








/? 


1879.27 


354-4 




8.5 




9.0 


\n 


Cin 


1880.33 


368.0 


. . . 








HI 


Pt 


1884.77 


362.2 


. . . 


8.0 




9-5 


2tl 


\\ 


1888.45 


357-7 


0.64 


7.0 




8.2 


V 


Lv 


1889.25 


360.2 


0.8S 


7-5 




^■i 


3« 


/3 


1897.23 


354-5 


0.72 


7 + 




8 + 


\n 


D 


1898.27 


360.6 


0.66 


7-4 




7-6 


4" 


A 



Discovered with the 18 3^ -inch. Early measures 
are wanting, but the change, if any, is slow. The 
magnitude in S.D. is 8.0. Lalande 2148S. 

(/3 (xiii). ../33.../S (2930)... /3 {Pub. L. O. ii)...CinS... 
Pritchett {Pub. Morrison Obsy. l). . .Wilson (Cin'°). . . l.v" 
. . . Doolittle {Pub. Flower Obsy. 1) Vitken ( ) . . . ] 



114 



General Catalogue of Double Stars 



P 1283. D.M. (16") 2235 

R.A. iih 8"" 7= ) 
Decl. + 16^ 10' S 

In my L.O. observing book of February 4, 1889, 
I find this star was under observation with the 36- 
inch, and it was noted : " The 9 m star ;// B Leouis 
is ofs double." I have examined this several 
times with the 40-inch, and on one occasion it ap- 
peared elongated, but nothing further could be 
done with it. The D.M. magnitude is 9.0. It is 
10^0 /, and 4' 58" n of B Leotiis. I am certain this 
star will prove to be a close pair, and therefore give 
it a place in this catalogue. 



P 600. Crateris 36 



R.A. ii*' 10" 53= 
Decl. — 6° 29' 

A and B 



1878.15 226.4 1-25 6. 5... 12.0 \n /8 

1892.17 216.0 1.23 6. 5... 13.0 2« ^ 

1898.27 240.67 0.98 6.0... 12.0 3;/ A 

A and C (= H- N. 26) 



1823.31 


97.6 


67.06 






i« 


Sh 


1878.89 


97-4 


61.25 


6.0. . 


. 8.0 


3« 


/3 


1892.16 


97.6 


60.46 


6.7.. 


. 8.6 


V^ 


^ 


1898.27 


97-7 


60.59 


6.0.. 


. 8.5 


in 


A 


1898.29 


97-4 


60.53 


7.0. . 


. 8.7 


\71 


y8 



The minute attendant to this wide pair of 
Herschel (= Sh 120) was discovered with the 
1 8^ inch. There appears to be a decided change 
in the close pair. All the measures of A and C 
are given above. The distance in Sh is probably 
too large. These stars are respectively W XL 148 
and 152. Heis gives this as a naked-eye star, 
6-7 m ; Cord. G.C. 6.0. Lalande 21540. 

[/3 (x).../3'.../33.. ./3 (3142)... /3 (/>///;. Z. O. ll)...Aitken 



1881.32 199.9 
1888.38 198.5 
1898.27 197.3 



791- w 


XI. 


197 






R.A. II*" 


13 


m 26=; 


\ 






Decl. + 


7 


° 32' 


s 






2.06 




8.3. 


..10.3 


3« 


^ 


2.21 




8.5. 


. . 10. 


3« 


Com 


2.15 




8.7. 


. . 10.8 


3« 


A 



Discovered with the 15% -inch at the Washburn 
Observatory. In D.M. 9.0 m. 

L/3 (xii) . . . /3^ . . Comstock (^Pub. Washburn Obsy. vi) . . . 
Aitken ( )...] 





p 


26. La] 


ande 21697 










R.A. II*" 


17- 42= ) 










Decl. - 


9° 46' \ 











// 








1875-50 


70.3 


2.80 


7.2 .. . 10.2 


4;-! 


A 


1879.31 


66.4 


2.66 


7.5. . .10.0 


2« 


Cin 


1888.67 


68.7 


2.86 


7.9. . . 10.4 


2n 


Lv 


1890.23 


71.0 


2.92 


7.0.. .10.5 


2>l 


T 


1899. 1 1 


70.8 


2.60 


7.7. . . 10. 


2n 


/3 



Discovered with the 6-inch. Probably without 
change. 

[|3(i).../3 (y?/o«. A'o/. xxxixi, 351). . .J (l)...Cin5. ..Cin6._ 
Lv^.. Tarrant (3186)...] 







P< 


301. S.D.. (16° 


)3259 










R.A. ii'> 


23m ijs 


) 










Decl. — 


16° 41 


\ 










B and C 








1878.32 



226.9 


0.81 


8.0 


.. 9.0 


m 


i8 


1879 


34 


232-3 


0-73 


8.0 


. . 9.0 


in 


j8 


1879 


18 


224.6 


0.87 


7.2 


.. 8.7 


2« 


Cin 


1880 


29 


224.9 




8.0 


. . 9.0 


in 


Cin 


1886 


29 


217.9 




7 


• ■ 9 


\n 


LM 


1886 


31 


219.9 


1.04 


8.5 


. . 9.0 


\n 


W 


1888 


65 


223.2 


0.75 


7-7 


.. 8.7 


2)1 


Lv 


1898 


26 


220.0 


1. 01 


8.5 


■ • 9-3 


3« 


A 


1898 


38 


220.9 


0-95 






\n 


See 



A and BC (= S 627) 



1783-34 


148.7 


26.25 






\n 


w 


1825.25 


330-7 


29.96 


8-5 


• - 9 


yi 


s 


1878.34 


331-6 


28.16 


7-5 




2« 


p 


1879.30 


330-9 


28.21 


8.0 


.- 8.5 


2;/ 


Cin 


1880,29 


331-6 


28.30 


6.0 


. , 


2« 


Cin 


1886.31 


330-8 


27.69 


8.0 




I// 


W 


1898.26 


330-4 


28.31 


7-5 


-. 8.5 


y 


A 


1898.38 


331-1 


28.36 






iti 


See 



The close pair was discovered with the 18^-inch. 
There is no material change, and the wide pair is. 



Discovered from rSyi to i8gg by S. W. Burnham 



115 



certainly fixed. The foregoing are all the meas- 
ures (^H' IV. 112 = S 627). 

[j3 (x)...^'...i33...Cin5...Cin*... Wilson (Cin-°). . .Lv'. . . 
LM...See( )...Aitken( )...] 



P 340. W XI. 390 



876 
880 
883 

893 
898 
899 



33 

28 

84 

20 

04 





R.A. 11'' 


23"" 49' 




Decl. + 


3° 52' 


2 


3-87 


8.0. 


8 


3-94 




3 


4-25 


7.9. 





4.28 


8.1. 


8 


4-23 




5 


4.26 


8.4. 



10.2 


3« 


A 




\n 


Pt 


10. 1 


gn 


En 


10.5 


2)1 


Gl 




yi 


D 


9.6 


2n 


^ 



Discovered with the 6-inch. Change, if any, is 
small. 

[/3 (vi). . .|3 (2062). . .A (i) . . .Pritchett {Pub. Morrison Obsy. 
l) . . . Engelmann (2678) . . . Glasenapp (11). . . Doolittle 
{Pub. Floiver Obsy. i). . .] 





p 


456. Lalande 


22020 










R.A. iih 30 


-44S 


\ 










Decl. — II 


° 41' 


\ 











/; 










1877-35 


248.2 


0.65 


10 


. . 10 


2n 


HI 


1878.22 


257.0 




8.7 


. . 9.0 


2)1 


Cin 


1880.24 


255-2 




9-5 


-- 9-5 


1)1 


Cin 


1892.37 


274.2 


0.46 


8.7 


- - 9-0 


V 


/8 


1894.28 


278.7 


0.31 






m 


Com 


1895.32 


269.7 


0.25± 






1)1 


Com 


1898.21 


290.8 


0.41 


8.5 


.. 9.0 


3« 


A 



Discovered with the 6-inch. It is a binary sys- 
tem beyond question. In S.D. 9.0 m. Rapid 
motion in angle will continue. It should be care- 
fully measured each year for the present. 

[/3 (IX). . .(3 {Man. Not. XXXVIII, 78). . ./S (3142). . ./3 {Pub. L. 
O. 11)... Hall (i)...Hall (2147). . .CinS. . .Cin«. . .Corn- 
stock {Pub. Washburn Obsy. x). . .Aitken ( ). . .] 



P 1078. Crateris 79 



R.A. 1 1'- 33' 



Decl. 



13 



47= \ 

48' S 



1889.30 


49.8 


8.22 


6.3. 


. 12.2 


3« 


/8 


1898.25 


51-8 


8.H 


6.0. 


•13-5 


V> 


A 



Discovered with the 36-inch. No sensible change. 
This is a naked-eye star, Heis 6-7 m; Gould 6.2. 
Lalande 22 102. 

\P (xv). . .j3 (2929). . ./3 {Pub. L. O. 11). . .Aitken ( ). . .] 



P 792. Schj. 4219 

R.A. \\^ 35'" 32= '/ 
Decl. + 3° 32' f 



1881.34 


204.5 


1.92 


8.3. 


. II. 


3« 


p 


1888.35 


199.2 


1.94 


8.2. 


.11.1 


A>i 


Com 


1898.20 


198.9 


2.23 


8 . 


. II 


i" 


D 


1898.27 


202.7 


2.19 


8.5. 


. II. 


3« 


A 



Discovered with the 151^ -inch at the Washburn 
Observatory. Apparently fixed. 

\P (xii). . .(3^. . .Comstock {Pub. iVaskburn Obsy. vi). . .Doo- 
little {Pub. Flower Obsy. l) . . . Aitken ( ) . . . ] 





P 


917 


Lalande 22179 










R.A. ii" 


37" 25= \ 
11° 22' \ 










Decl. + 






1880.31 


175-2 




// 
3-70 


8.0 . . . 10.4 


4;/ 


/3 


1892.24 


177. 1 




3-59 


8.1. . . 10.3 


y 


/3 


1892.24 


175-4 




3-19 


7.8. . . II. 


4n 


Col 


1898.17 


175-3 




3-86 


8 .. .11 


4)1 


D 


1898.32 


176.3 




3-63 


7.8. . . 10.8 


3^' 


A 


Discovered with 


the 


i8>^-inch. There 


is^no 


change. 















[/3 (xill). . ./33. . ./S (3142). . .|3 {Pzeb. L. O. 11). . .Collins {A.J. 
278) {Proc. Haverford Coll. Obsy. 1892). . .Aitken ( ) 
. . .Doolittle {Pub. Flower Obsy. l) . . .] 



P 793- D.M. (7°) 2474 



R.A. 11'' 37"" 26^ \ 
Decl. + 7° 14' \ 



1881.32 


114. 2 


-^■ll 


9.6. 


.10.3 


i>' 


18 


1888.35 


I I 3. 1 


1.66 


9.2. 


. 10. 8 


y 


Com 


1898.21 


I 12.5 


1.62 


9 • 


-10+ 


A" 


D 


1898.40 


I II. 2 


1.58 


9-5- 


.10.3 


y 


A 



Discovered with the 15''^ -inch at the Washburn 
Observatory. The apparent change in the angle 
may not be real. 

[/3 (xii). . ./3». . .Comstock {Pub. IVasliburri Obsy. vi). . .Doo- 
little {Pub. Flower Obsy. i) . . . Aitken ( ) . . . ] 



ii6 



General Catalogue of Double Stars 



p 602. 



Lalande 22262 



R.A. 11'^ 40-" 39= 
Decl. + 15° 40' 



1878.15 
189T.30 
1898.44 



73-4 
80.0 
76.9 



0-57 
0.47 

0.43 



8.5. 
8.3. 
8.0. 



.11.0 \n /3 
. 1 1.0 3;/ (3 
.12.5 2;/ A 



Discovered with the 18^ inch. The measures 
are insufficient to decide as to the question of mo- 
tion. It has been a more difficult pair than the 
magnitudes and distance would indicate. 
[;8 (x)...^'...|3{3ii4).../3 (/'«/;. Z. 0. n.) . . . Aitken ( )...J 

P 603. Leonis 472. B.A.C. 3992 







R.A. ii" 


42-" 28^ 


\ 










Decl. + 


14' 57' 


\ 






1878.21 




337-2 


1-52 


6.7 


. . II.O 


2)1 


^ 


1880.28 


335-7 


1-13 


6-5 


• - 9-7 


211 


^ 


1882.33 


335-4 


0.90 


6 


. . 10 


m 


Ho 


1886.28 


324-4 


1-33 






2« 


H2 


1889.27 


326.7 




7.0 


. . lO.O 


m 


Lv 


1889.71 


329.1 


0.68 






111 


Sp 


1891.26 


328.7 


1. 16 


6.4 


. . 10.2 


yi 


/3 


1894.85 


324-7 


1.16 






271 


Bar 


1895.67 


326.3 


1.05 






in 


Lew 


1897-33 


321.2 


0.88 






VI 


Lew 


1897.34 


320.9 


1.07 


6 + 


. . 10 


yi 


A 


1898.32 


321-1 


0.88 






\n 


Bow 



Discovered with the 18^ -inch. This star is 
1 1 34 ['3 from /3 Leonis in the position-angle of 
2oi?5 (1864.4) Knott. In B.A.C. 6>^m; D.M. 
7.0. Certainly binary in slow retrograde motion. 
A more rapid change in the angle may be expected. 
Porter gives this star a proper motion of of 141 in 
the direction of 284?4. 

[/3 (x). . .(3'. . ./33. . .^{Mon. iVo/. xxxvni, 408). . .jS (3114). . . 
/3 {Pub. L. 0. 11). ..Ho {2978)... Lv'. ..Sp (in). ..Lewis 
{Grecn-iuich Obsns. 1895) {Mon. Not. LIX, 400). . .Dyson 
{Mon. Not. LVI, 359). . .Knott {Mem. R. A. S. xrni). . . 
Aitken (3465). . .Barnard {A.J. 447)... Lewis ( )... 
HS( )...] 



P 604. P Leonis 

R.A. 11" 42™ 56= \ 
Decl. + 15° IS' \ 

A and B 
39-74 •-■15-5 3« A 



1898.40 346.2 



A and C 



1878.28 344.2 77.14 

1892.19 349.0 78.10 

1898.34 351.2 79.36 

1898.40 351.4 78.89 



..13 in 13 

. . 14 2« /3 

..15 i« /3 

..14.3 3« A 



The faint star, C, was noted with the i8j^-inch. 
The change in its position is due to the proper mo- 
tion of the large star. Auwers gives this, of 522 
in the direction of 258?7. 

The fainter attendant, B, was added by Aitken 
with the 36-inch. He calls it exceedingly faint and 
difficult with that instrument. 

[/3 (x). . ./3'. . .(3 {Mon. Not. xxxvill, 408). . ./3 (3142)... j3 
(A/^. Z. a 11)... Aitken ( )...] 



P 794- O. Arg. N. 12149 







R.A. ii" 


47"- 2= 


) 










Decl. -j- 74° 26' 










A and B 








1881.34 




106.6 


0.42 


6.5. 


. 7-8 


S'i 


iS 


1885.85 


119. 


.0.50 






i'i 


H2 


1889.37 


133-3 


0.41 


7-5- 


- 8.5 


2n 


Com 


1890.35 


126.9 


0.50 






4;/ 


/8 


1891.30 


133-4 


0.43 


7.1. 


.. 8.7 


yi 


iS 


1892.15 


136.9 


0.42 


7-3- 


. 9.2 


i" 


/8 


1892.40 


135-7 


o.4± 






m 


Sp 


1898.31 


160.7 


0.37 


7.0. 


■ 7-7 


2 71 


/8 


1898.57 


162.6 


0.40 


6.3. 


• 7-3 


yi 


A 






AB and C 








1886.34 



71-5 


5-70 






m 


H2 


1890.37 


71.8 


5-71 




-13-7 


2« 


^ 


1891.30 


72.3 


5-54 




.14.2 


VI 


/3 


1892.15 


73-2 


5-65 




-13-7 


VI 


/5 


1898.31 


73-6 


5-55 




-13-5 


2« 


y3 


1898.57 


72.1 


5-36 




• 14-3 


3« 


A 






AB and D 








1890.37 


78!6 


26.73 




-13 


271 


/? 


1898.27 




26.83 




•13 


m 


/? 


1898.57 


78.4 


27.12 




. 14.2 


yi 


A 



The close pair was discovered with the 15^-inch 
at the Washburn Observatory. A naked-eye star in 
Draco; Heis 6-7 m ; D.M. 6.7. This is in rapid 



Discovered from i8ji to i8gg by S. W. Burnham 



117 



orbital motion, and will probably have a short 
period. 

The arc so far described will be seen from the 
accompanying diagram. 

7^0° 



/3 794 




-Q<fi 



O.l 

I 



0.3 






Scale 



The distant companions, C and D, were added 
with the 36-inch, but C had been seen by H2 in 
measuring AB. . Thus far the positions are un- 
changed. 

[/3 (xn)...j3=!...^ (3048,3 1 1 4,3 1 42)... /3 [Sid. Mess, ix, 299) 
. . .(3 {Pid>. L. O. II). . .Comstock [Pub. Washbtirn Obsy. 
VI, x)...Sp (iii)...Aitken ( )...HS( )...] 



p 918. Lalande 22496 

R.A. 11'' so" 36= 
Decl. -|- 32° 52' 



1880.37 


231-3 




7-45 




6.8 .. . 13.0 211 /3 


1891.22 


234-3 




7-33 




6. 4... 12. 7 in 13 


1899.13 


230.8 




7.2 I 




6.6 . . . 13.0 2« (3 


Discovered w 


th 


the 


18 


^-inch. In Heis and 



Argelander, as a naked-eye star, 6.7m (Ursa 
Major). Three faint nebulae in a low field-power/. 

[i3(xiii)...^3...^{3ii4).../3(/'«/;.Z.O.n)...] 
P 919. W= XI. 1013 



R.A. 11'' 53"' 7' 
Decl. -f 33° so' 



1880.37 


16.2 


4.22 


6.3. 


.12.3 


3« 


/8 


1891.22 


14-3 


4.60 


6.2. 


.11.7 


3'' 


iS 


1899. 1 1 


15-7 


4-3° 


6.7.. 


•12.5 


2n 


/3 



Discovered with the i8j^-inch. A naked-eye 
star in Ursa Afajor (Reis) . Magnitude in D.M. 6.0. 

[/3 (XIII). . ./33. . .13 (3114). . .^ i^'^i- L. 0.n)...\ 



P 795« Radcliffe 2778 

R.A. ii^ SS" 5'" / 
Decl. + 71^ 20' f 







A and B 








1881.30 


327.0 


13.82 


7-7- 


- 13 


V^ 


fi 


1885.61 


329-3 


14.44 






211 


H2 


1888.40 


327.2 


14.44 


8 . 


.12.8 


211 


Com 


1896.43 


328.0 


14-39 
Car 


d D 




3« 


A 


1881.30 




1 16.2 


5-78 


7-7- 


.12.5 


3« 


/3 


1885.61 


116. 3 


6.06 






\7l 


H2 


1888.32 


1 16.0 


5-58 


8 . 


.12.3 


2>l 


Com 


1896.43 


1 14.0 


6.25 






yi 


A 



A and C (= 02 242 rej.) 



1868. II 


149.6 


33-72 


7.T. 


• 7-3 


y 


J 


1881.30 


150.9 


33-59 


7-7- 


• 7-7 


3" 


/? 


1885.61 


150-7 


33-52 






in 


H2 


1888.28 


I5I-4 


33-91 


8 . 


. 8 


m 


Com 


1896.58 


150.9 


33-49 






i" 


Eich 



The faint companions to the wide pair of 02 
were noted with the i5j^-inch at the AVashburn 
Observatory. All the measures of A and C are 
given. These stars are fixed. 

[(3 (XII) . . . /3^ . . Comstock (Pub. IVas/iburn Obsv. vi) . . . Aitken 
(3395) ... J U) - - • Eichelberger {A./. 397) . . . H2 ( ) . . .] 



P 1079. Lalande 22586 

R.A. iihs4"'34^ ) 
Decl. — 21° 7' \ 

1889.30 147.9 11-69 6. 2. ..13. 3 yi /? 
1898.26 148.3 1 1.55 ... i« See 

Discovered with the 36-inch. In Gould 6.5 m 
{Corvus). 

/3 (XV)... /3 (2929)... (3 (/■///'. Z. O. 11)... See ( )...] 



ii8 



General Catalogue of Double Stars 



P 457- O. Arg. S. 1 1836 







R.A. iih 
Decl. — 


55" 15' 
20° 52' 


( 




1877-37 
1883.80 
1886.30 



84.2 

81.4 

81.3 




0.89 
I. OS 
1. 18 


8. 
8.5. 
8.0. 


• - 9 
. . 9.2 
. . 10. 


2« HI 
\n W 
i« LM 


1898.24 
1898.26 
1898.26 


82.1 
86.2 
80.1 




1.24 

1.27 
1. 18 


8.0. 
8.2. 


. . 9.0 
.. 9-8 


271 D 

\n See 
yi A 


Discovered w 


th 


the 6 


-inch. 


Probably withou 


change. 















[i3(ix)...;3(Afo«. Not. xxxviii, 78)... Hall (i) (2147)... LM 
...Wilson (Cin'o). . .Doolittle [Pub. Flower Obsy. l)... 
See ( )...Aitken( )...] 





p 


458. L: 


ilande 22677 










R.A. llh 


58- 8^ ) 
20' 22' \ 










Decl. — 






1879.34 




232-5 


30-35 


8.0 . . .10.5 


m 


/8 


1883.22 


233-3 


30.53 


7.0. . . 9.0 


\n 


W 


1898.26 


233-1 


30-49 




m 


See 


1898.26 


233-0 


30-55 


7.7.. .9.5 


3« 


A 


1899.05 


232.9 


30.38 


8.0. . . 10. 


m 


f3 



Noted with the 6-inch in observing the preced- 
ing pair. Relatively fixed. See measures a 14.2 m 
star nearer. i83?4 : 12 ['33 (1898.26) in. Not seen 
with the 40-inch at the time of the last measure 
given above. 



[/3 (ix). . .(3 {Mo>i. Not. xxxviii, 78). 
( )...Aitken ( )...] 



.Wilson (Cin'°). . .See 





p 


412. Lalande 22 


772 










R.A. 12^ 


2'" 10^ \ 












Decl. — 


17° 55' f 








1877.29 


163-8 


2-33 


8.5.. 


9.0 


\n 


Cin 


1877.86 


163.0 


2.16 


8.0. . 


8-5 


2)1 


J 


1879.26 


167. 1 


2-59 


8.0. . 


9.0 


m 


Cin 


1886.30 


160.2 


1.77 


8.0. . 


9.0 


\n 


LM 


1894.18 


162.9 


2.10 


8.0. . 


8-5 


IN 


W 



Discovered with the 6-inch. No change is shown. 
r/3 (v!i).../3 (2103)... J (l)., . Cin"... Cin5.,.LM... Wilson 



P 920. Corvi 17 







R.A. 12'' 


9" 34' 


■ 












Decl. — 


22° 41 








1879-37 




232.4 


// 
0-77 


6.5 




7.0 


m 


/? 


1880.36 


232.4 


0.92 








\n 


Pt 


1892.25 


252.4 


0-79 


6.4 




8.4 


3« 


P 


1892.34 


250.5 


0.81 


6.5 




7-8 


4« 


Lv 


1894.18 


248.8 


I-I3 


7.0 




9.0 


i« 


W 


1896.52 


244.0 


0.84 








\n 


A 


1897.32 


253-7 


0.94 








yi 


A 


1898.26 


251-7 


1.04 


6-5 




7-3 


yi 


A 



Discovered with the i8j^-inch. My single ob- 
servation in 1879 is noted, "Very poor measure," 
and the apparent motion in angle is probably not 
real. There seems to be no change since my meas- 
ures of 1892. The magnitude in Gould is 6.7. 
Lalande 22971. 

[/3 (xill) ...PK..I3 (3142). . .iS (Fub. L. 0. 11). . . Pritchett {Pub. 
Morrison Obsy. l). . .Lv (A.J. 278) [Proc. Haverford Coll. 
Obsy. 1892) .. .Wilson ( )...Aitken '3395,3465)... 
Aitken ( ). . .] 



P 796. Lalande 23014 







R.A. 12'' 


II™ 19" 






Decl. + 


r 16' 


1881.34 


270.9 


0.31 


8.0. 


1883.83 


78.3 


0.27 


7.9. 


1886.34 


266.9 


0-35 




1888.69 


272.7 


0-59 


8.3- 


1896.52 


260.0 


0.66 




1898.40 


273-3 


0.52 


8.0. 



3« 


^ 


6« 


En 


2)1 


H2 


271 


Com 


in 


A 


yi 


A 



9-5 



Discovered with the 15^ -inch at the Washburn 
Observatory. There is apparently no change un- 
less it is in distance. There seems to be some 
error, in printing or otherwise, in the angle of 
Engelmann. There is no other known close pair 
in this vicinity. 

[/3 (xil). . .(34. . .Engelmann (2678). . .Comstock {Pub. Wash- 
burn Obsy. vi)... Aitken (3395) ... Aitken ( )...H2 



J 



Discovered front iSji to i8gg by S. W. Burnham 



119 



P 921. Corvi 22 







R.A. 12'' 


II 


■"42= \ 












Decl. — 


23 


'2l't 








1880.55 



218.5 


3.10 




7-5- ■ 


.11.6 


5« 


i3 


1892.25 


217-3 


3-20 




7.6.. 


.10.3 


3« 


^ 


1892.31 


218.5 


2-95 




7.0. . 


. 12.0 


4« 


Lv 


1899.16 


215-7 


3-39 




7.2. . 


• 9-7 


y 


/3 


Discovered wi 


th the 18 


V-z 


-inch. 


Lala 


nde 


2302 



[/8(xill).../33. ..(34.../3(3i42)...(3(P«^. L. O.u) . . .Lv {A./. 
278) {Proc. Haverford Coll. Obsy. 1892). . .] 



P 27. Lalande 23106 







R.A. I2>' 


13m 59S 


i 










Decl. + 


14° 31' S 






1874.30 


105.0 


;/ 


7 ■ 


. 12 


\)i 


ws 


1875-32 


113. 1 


3-43 


7.0. 


. I I.O 


211 


02 


1875-53 


106.5 


3-39 


7-1- 


. 1 1.0 


4« 


J 


1881.37 


102.6 


3-09 






\n 


Pt 


1882.45 


109.3 


3-27 


7.0. 


. 1 1.0 


V 


Ho 


1886.30 


106.8 


3-58 






y 


HS 


1898.22 


104. 1 


3-54 


7.0. 


. 1 1.0 


3« 


D 


1898.32 


105.0 


3-41 


7-2. 


.11-5 


3« 


A 



Discovered with the 6-inch. Evidently without 
change. 

[/3 (i). . .;3 [Mon. Not. xxxin, 351). . .Wilson and Seabroke 
{Mem. R. A. S. XLlll). . .Pritchett {Pub. Morrison Obsy. l) 
. . .A (l) . . . OS {Poulkowa Obsns. x) . . . Hough (2978) . . . 
Doolittle (Pub. Flower Obsy. l)...Aitk;en ( )...HS 
( )--■] 





P605. 


Corvi 2C 


). B.A.C. 41 


49 








R.A. 12^ i; 
Decl. — 2 


" 30' 








1878.22 


144.2 


1-25 


6.0. . 


8.0 


2/1 


/i 


1878.43 


136.3 


I.OI 


6.2. . 


8.3 


2« 


Cin 


1882.40 


141-7 


0-53 


6 . . 


8 


2« 


Sp 


1884.32 


133-0 




8.0. . 


9.0 


\>l 


w 


1888.25 


I57-I 


o.8± 






111 


Sp 


1889.04 


137-0 


o.Szh 


6.0. . 


8.5 


in 


Lv 


1891.32 


143-8 


1.03 


6.2. . 


8.4 


i" 


/3 



Discovered with the i8j^-inch. The measures 
are not accordant, but there is probably no sensible 
change. The magnitude in Gould is 6.4, and 6^4 
in B.A.C. It is near ^ Cotvi. Lalande 231 19. 

[^ (x).../3'...|3 (3ii4).../3 {Pub. L. O. ii)...Cin5. ...Sp (11, 
III) . . . Wilson (Cin'°) . . . Lv' . . . ] 



p 1245. % Corvi 







R.A. 12*" 14" 21' 












Decl. — 21° 33' 








I89I.3I 




42-3 


4-81 5-5- 


.13-8 


3« 


^ 


1899.16 


48.7 


5-76 5-0.. 


. 14.0 


2« 


A 



The very minute companion was discovered with 
the 36-inch. The proper motion of the bright star 
is given by Auwers as ori3o in the direction of 
254?4. It is probably only an optical pair as the 
change in the position of the companion shown by 
the two sets of measures given above agrees very 
closely with the proper motion of A. The mini- 
mum distance of the companion was 2^6 about 
i860. 
[/3(xviii).../3(3ii3)...^(/'«(5. Z. 0. ii)...Aitken ( )...] 

P 606. Corvi 35 

R.A. 12'' 19™ 48^ \ 
Decl. — 14° 17' f 



1878.30 


97-9 


1-38 


7.0. . 


. 9.0 


2n 


i8 


1882.41 


134-5 


0.40 


7 -• 


- 9 


2« 


Sp 


1889.04 


93-5 


1.20 






VI 


Sp 


1891.26 


99.1 


1.25 


7.2. . 


. 8.2 


3« 


/3 


1892.40 


99-8 


1. 21 






i« 


Sp 


1898.24 


95-3 


1-43 


7.0. . 


. 9.0 


211 


D 



Discovered with the 18^ -inch. The first meas- 
ures of Sp appear to belong to some other pair. I 
could not find any other pair in the vicinity with the 
36-inch. Lalande 23250. 

[|3 (x)...i3'.../3 (3ii4).../3 {Pub.L. O. 11). ..Sp (11, in)... 
Doolittle {Pub. Flower Obsy. l). . . ] 



P 922. Lalande 23254 

R.A. 12'' ig" 58= ^ 
Decl. — 3^ 49' ^ 



1880.22 


i6o± 


o.5± 


8.0. 


.. 8.5 




/8 


1889.99 


167.4 


o.6±: 






3« 


Sp 


1891.27 


165-3 


0.74 


8.1. 


.. 8.9 


3« 


^ 


1892.39 


163-3 


0.55 






\n 


Sp 


1898.24 


157-8 


0.77 


8 . 


- - 9 


211 


D 



Discovered with the iSi^^-inch. The change, if 
any, is small. 

\p (xiii).../33...j3 (3ii4).../3 {Pub. L. 0. 11)... Sp (ill)... 
Doolittle {Pub. Floiver Obsy. i). . .] 



I20 



General Catalogue of Double Stars 



P 923. 



Virginis 168 



R.A. 12'' 22"" 12^ 

Decl. + S" 4' 



1879-33 


59-6 


2.16 


6.8. 


■13-5 


3« 


/3 


1892.13 


61.8 


2.66 


6.8.. 


.11.7 


Z" 


/3 


1898.50 


59-1 


2.65 


7.0. 


. 12.2 


3« 


A 



Discovered with the 1 8 J^ -inch. In Gould 6.9 m. 
W XII. 344. 

[^ (xiii)...i33...,3 (3142)... /S {Pub. L. O. ii)...Aitken 
( )•••] 

P 1080. 17 Cofnae 



R.A. 12'^ 22"" 555 
Decl. + 26° 35' 

B and C 



1889. II 


156.8 


1.79 


6.0. 


•13-7 


3« 


n 


1898.48 


156.0 


1.83 




. 14.0 


m 


A 



.8 


144. 


•7 


145- 


.6 


146. 


.6 


MS- 


•4 


MS- 


•3 


MS- 


•4 


MS- 



43 


6 .. 


■ 7 


2n 


S 


iS 


4.8.. 


. 6.0 


5« 


2 


01 






ifi 


Se 


35 


5.1.. 


. 6.3 


S" 


J 


37 


4.8.. 


. 6.0 


S« 


Je 


OS 






2U 


^ 


27 






in 


/8 



A and B (= S 21 App. i) 

o « 

1825.23 250 

1836.43 250 

1859.25 250 

1870.35 250, 

1877.77 250 

1889. II 250 
1899.29 250 

The close component was discovered with the 
36-inch. There is obviously no change in the 
Struve wide stars ( = S 638). According to 
AuwERS, the bright stars have different proper 
motions : 

// o 

A = 0.015 ii^ 258.5 
B = 0.018 in 235.9 

As the measures show no change, they must have 
the same proper motion. 

[^ (xv). . .;8 (2929). . ./3 {Observatory xil, 227) {Pzib. L. O. in 
...Aitken ( )...Secchi {Cat. 1321 Stelle Doppie)...A 
(u). . .Radcliffe Obsns. 1868, 1880, 1881 . . .Jedrzejewicz 
(2338)...] 







3 28. B.A.C. 4213 










R.A. 12'' 23"" 53= ) 
Decl. — 12° 44' \ 














1874.30 


362.0 


II 


m 


WS 


1875.29 


353-7 


1. 81 6.4. . . 10.2 


5« 


A 


1877-33 


355-1 


2.16 6.7 .. . 10.2 


2« 


Cin 



1880.36 


356-3 


2.01 


1885.34 


361. 1 


2.16 


1889.24 


362.4 




1889.32 


3S7-0 


2.23 


1891.26 


368.6 


1. 81 


1892.34 


369.0 


2.22 


1898.25 


366.9 


2.04 





\n 


Pt 


10 


in 


LM 


I I.O 


2n 


Lv 




yi 


T 


9-3 


yi 


(i 


10.7 


4n 


T 


11-3 


in 


A 



6 
6.0 

6.6 

6.3 
6.0 



Discovered with the 6-inch. Porter gives for 
the principal star (Piazzi XII. 104) a proper 
motion of 0*282 in the direction of 26i?7. It is 
plain that this is a phvsical system, as this motion 
is common to the components. There is also slow 
direct relative motion. 

[iS (i). . .p (Mot!. Not. xxxiii, 351). . .;3 (3114). . ./3 (Pitb. L. 
O.w). . .A (i). . .Cin'*. . .Wilson and Seabroke {Mem. R.A. 
S. XLlll) . . . LM . . . Lv' . . . Pritchett {P/ib. Morrison Obsy. l) 
...Tarrant (3 1 86)... Aitken ( )...] 



P 797- D.M. (6°) 2630 







R.A. 12" 28'" 27= \ 












Decl. + 6° 38° \ 












A and B 








I88I.3I 



171. 2 


D.73 8.5.. 


. 8.6 


3" 


/3 


1888.39 


170. 1 


0.75 8.7.. 


. 8.7 


3'' 


Com 


1899.26 


164.0 


0-S3 
AB and C 




m 


/3 


I88I.3I 



3-2 


77.29 


. 9.0 


yi 


^ 


1899.07 


3-1 


77-08 


. 8.5 


271 


/8 



Discovered with the i5j^-inch at the Washburn 
Observatory. 
[iS (xil). . ./34. . .Comstock {Pub. Washburn Obsy. vi). . .] 



P 607. Schj. 4572 



R.A. 12'' 35™ 2= 
Decl. — 0° 48' 



867 
878 
878 

879 
880 



33 


320.0 


1.40 


22 


3M-4 


1.06 


23 


315-8 


1. 16 


75 


316.0 


1. 12 


34 


3M-S 


1.08 


31 


316.3 


1.20 



9.0 

8-5 
8.9 
9.0 
9.0 



Discovered with the 18^ -inch 





in 


Hd 


.10.7 


in 


Cin 


. I 1.0 


4« 


/8 


- 9-5 


271 


/3 


. 1 1.0 


211 


Cin 


. 10. 


3" 


/3 



It is 32' directly 



preceding y Virginis. In D.M. 9.2 m. So far 



Discovered from ^Syi to i8gg by S. W. Burnham 



12 I 



there has been no change. Previously seen at Har- 
vard, but not printed until after ^ (x). 02 meas- 
ures this star from y Virginis for proper motion of 
the latter. 

[^ (x).../3'...)33.../3 (2930)... (3 {Pub. L. O. ii)...Cin5... 
Cin*. . . Annals Harvard Obsy. XIII . . .OS {Poulkowa Obsns. 
X, p. 89)...] 



P 924. 3 I Virginis 



R.A. 12'' 35™ 52^ 
Decl. + 7" 28' 



1880.14 


29.0 




3.66 


5.8. . .11.6 


Sn ^ 


1883.26 


36.0 




3-9 




I n Perry 


1891.24 


29.0 




3-94 


5 •••II-5 


VI /3 


1899.06 


31.8 




3-79 


. . .11.4 


2)1 (3 


Discovered with 


the 


i8>^-inch. 


The proper 

1 • _ , • . r 



motion of this star is o;'io6 in the direction of 
273?2 (AuwERs). With this movement and the 
measures of 1880, the small star, if fixed in space, 
should be at the date of the last measures, 50?; : 
4:'88. 



[13 (xili).../3^../34...^ (^114) 
(£ng. Mech. xxxvni, 192) 



./3 (Pub. L. O. 11). 
•] 



, Perry 



R.A. 12" 


41" 58= 








Decl. -f 


A" 7' 








3.80 


8.2. 


.11.5 


2« 


d 


3-50 






zn 


Pt 


3-91 


8.0. . 


. I I.O 


3« 


W 


3-76 


8.0. . 


.11.7 


V^ 


A 



P 459, W XII. 



1877.93 289.5 

1880.61 292.6 

1893.39 295.0 

1898.28 292.9 

Discovered with the 6-inch. Without change. 

[/3 (ix). . ./3 {Mon.Not. xxxvni, 78). . .A (i). . . Pritchett {Pub. 
Morrison Obsy. l) . . . Wilson ( ) . . . Aitken ( ) . . . ] 



P 925' Groombridge 1938 



R.A. 12'' 51'" 6=^ 
Decl. -|- 44 12 ' 



1879.82 


211. 3 


7. II 


6.5.. 


. 12.0 


2;/ 


/? 


1882.41 


209.5 


6.48 


6.5. 


.13.0 


in 


Ho 


1892.13 


2T 1.9 


6.90 


6.3- 


. II. 4 


V 


i8 


1899.08 


21 1.6 


6.77 


6.8.. 


.12.5 


\n 


/8 



Discovered with the iBj^ inch. Kustner gives 
the proper motion of this star o.'oi9 in the direc- 
tion of 294?9. The measures do not cover a sufifi- 
cient tirrie to show whether or not the motion 
belongs to both stars. This is a naked-eye star in 
Canes Venatici. 

[^ (xiii). . . ^3. . . ^ (3142). . . /3 (Pub. L. O. II)... Hough 
(2978)...] 



P 926. Lalande 24147 



R.A. 12'' 


52"" 14' 








Decl. — 


5° 24' 








2.06 


8.1. 


.11.3 


VI 


/3 


2.24 


8.3- • 


. I 1.0 


yi 


/? 


2.23 


8.2. . 


.11.7 


VI 


Lv 



1880.33 270.4 

1892.24 274.8 

1892.33 269.9 

Discovered with the iS^^-inch. There is no 
indication of motion. 

[i3(xiii)...^3...^(3i42). ..^{Pub.L. O. II). ..Lv {A.J. 278) 
{Proc. Haverford Coll. Obsy. 1892). . .] 



P I081. 



3/ 



Comae 



i»«9-i3 351-3 
1898.52 348.7 



R.A. 12'' 54"" 32^ 








Decl. +31° 26' \ 








II 
5-15 4-5-- 


.13.8 


V 


^ 


5.24 


. 14.0 


2« 


A 



Discovered with the 36inch. Auwers gives the 
proper motion of this star, o.'o34 in the direction 
of 268? 3. It is impossible to say with certainty 
from the two sets of measures whether the small 
star shares in this movement. If it does not, the 
angle should have increased 3:5 at the last date, 
the distance remaining substantially the same. 

IP {xv)...p (2929)... /3 {Pub. L. O. 11)... Aitken ( )...] 
P 112. Piazzi XII. 243 



1874.30 293.4 

1875.08 292.4 

1892.14 293.7 

1892.32 291.1 



R.A. 12" 


54"" 46^ 


\ 






Dec). + 


19' I' 


\ 






B and C 








it 


9 • 


. . 10 


in 


ws 


•■75 


9.6. 


. . 10.0 


V 


J 


1.86 


9-3 ■ 


.. 9-S 


3" 


/J 


1.90 


9.1. 


.. 9-S 


3« 


Lv 



122 



General Catalog;ue of Double Stars 



1893-33 


291.2 


1-99 


8.8... 


1895.40 




2-57 




1895.40 


297-5 


2.34 




1897.41 


293.1 


1.96 




1897.81 


293-4 


2.12 




1898.29 


293.1 


2.40 




1898.28 


292.9 


2.12 


8.8. .. 






A an 


d BC 


1874.30 


347-3 


u 


6.5--- 


1875-38 


347-4 


153-39 


6.2. .. 


1892.13 


348.9 


150.70 


6.0. .. 


1893-33 


349-3 


150.90 


5-7--- 


1894.25 


348-8 


150. 1 1 


6.8. .. 


1897.45 


349-2 


1 5 1 . 1 8 


7 • - • 


1898.15 


349-3 


150-77 




1898.28 


348.9 


151-05 


6.3... 



9.0 



9-0 



2;/ 


Gl 


in 


Dyson 


m 


Lew 


211 


Lew 


4;; 


Doo 


111 


Bry 


Z" 


A 



\n 


WS 


211 


J 


2)1 


/3 


2/1 


Gl 


2 71 


W 


4« 


Doo 


2;/ 


Doo 


VI 


A 



Discovered with the 6 inch. There has been no 
sensible change. The Berlin A. G. Catalogue gives 
the proper motion of A 05312 in the direction of 
287?7. This probably explains the change in the 
position of the double companion star. It should 
be remarked that some of the measures give the 
distance of A and B, and others the distance of A 
and BC, and, therefore, the measures as given are 
more accordant with the proper motion than would 
at first appear. 
[(3 (III). . .^ {Mon. Not. XXXIV, 59). . ./i (3142). . ./3 {Pub. L. 

O. II)... J (l). ..WOson and Seabroke [Mein. R. A. S. 

XLlll). . .Lv {A.J. 278) {Proc. Haverford Coll. Obsy. 1892) 

...Glasenapp (11). . .Lewis, Bryant and D3'son {Alon. 

Not. l.vr, 359; lix, 400) {Greenwich Obsns. 1895)... 

Wilson ( )...Aitken ( ) . . .Doolittle {Pub. Flower 

Obsy.\)...'\ 

p 1082. 78 Ursae Majoris 







R.A. 12' 






Decl. -f 







/; 


1889.17 


74-6 


1.50 


1890.26 


76.9 


1.46 


1898.29 


85-4 


1.26 


1898.51 


86.5 


1.42 



I2h 55m 35s 1 

+ 57° I' i 



6.0. 



6.0. 



9.6 



9-5 



6« 


^ 


in 


/? 


VI 


Lew 


3« 


A 



Discovered with the 36-inch. Krueger gives 
the proper motion o.'o62 in the direction of 108:8. 
It is evident from the measures that this is the 
movement of both components ; otherwise, the 
position of B for 1898.5 would be 56?9 : i ^07. 

[/3 (XV)... i3 (2929,2979,3048).. ./3 {Ptih. L. O. II)... Lewis 
(Mon. Not. LIX, 400) . . . Aitken ( ) . . . ] 





p 


927. Lalande 2 


^257 










R.A. I2>^ 


56" 34' 












Decl. — 


5° 53' 













// 










1880.31 


291-3 


4.17 


8-3- 


.10.3 


yi 


/8 


1892.26 


291-5 


4.20 


8.2. 


. 10.2 


3« 


n 


1892.31 


290.5 


4.42 


8.2. 


. 10. 


y 


Lv 


1899.20 


292.8 


4-73 




. 


2>l 


iS 



Discovered with the 18^-inch. Unchanged. 

[/3 (XIII). . ./33. . ./3 (3142) . . .p {Pub. L. O. II). . .Lv {A.J. 278) 
{Proc. Haverford Coll. Obsy. 1892). . .] 

p 928. Lalande 24274 



R.A. 12'^ 57"" 10= 
Decl. — 5° 47' 



1880.31 313.2 

1888.70 312.5 

1892.25 312.8 

1892.37 305.8 

1893-37 313-8 



1.83 
1.98 
2.01 

2.01 



7.8. 
8.2. 
8.0. 
8.0. 
8.2. 



8.7 3« 


/8 


9.6 yi 


Lv 


9.0 yi 


^ 


9.0 \n 


C 


9.2 2« 


J 


1. No relative 



Discovered with the 18^-inch. 
motion. 

[/3 (xill). . .(33. . ./3 (3142)... iS {Pub. L. O. 11). . .Collins and 
Jones {A. J. 378, 312) {Proc. Haverford Coll. Obsy. 
1892)...] 



P 341. Hydrae 348 







R.A. 12'' 


57™ 20= 


\ 










Decl. — 


19° 56' \ 






1876.39 




313-6 


0.85 


6.0. 


. 6.1 


2;/ 


Cin 


1877.00 


136.2 


0.83 


6.2. 


. 6.7 


3« 


J 


1877-37 


134-4 


1. 00 


6.0. 


. 6.1 


2;; 


Cin 


1879.27 


312.0 




6.5. 


- 7-0 


\n 


Cin 


1881.38 


312.9 


0.62 


6.5. 


• 7-0 


yi 


Sp 


1881.46 


3^3-4 


0.71 


6.2. 


. 6.2 


2n 


)8 


1884.35 


31 7- 1 


0.96 


8.0. 


. 8.0 


m 


W 


1889.26 


306.8 


0.66 






m 


Sp 


1894.46 


310.5 


o.3± 


6 . 


. 6 


2« 


Sel 


1896.54 


307-9 


0.78 






2n 


A 


1898.26 


315-5 


0.66 


6.5- 


- 6.5 


3« 


A 



Discovered with the 6-inch. Change is doubt- 
ful. This is a naked-eye star ; Gould 5.9 m ( Virgo). 
Lalande 24275. 

[^ (VI)... i3 (2062)... (S-t... J (i)...Cin3...Cin''...CinS... 
Wilson (Cin'°)...Sp (11, in) .. .Sellers (3303) .. .Aitken 
(3395, )--•] 



Discovered from iSji to i8gg by S. W. Burnham 



123 



P 929. 48 Virginis 







R 


A. 12'' 


57"" 43' / 












Decl. — 


3= I'f 








1879.40 



229.4 




II 

0.48 


6.2.. 


6.2 


y 


^ 


1879.40 


233-2 






7.0. . 


8.0 


in 


Cin 


1880.35 


227.3 










in 


Cin 


1881.42 


222.1 




0-33 






in 


Big 


1881.46 


223.6 




0.48 


6.0. . 


6.0 


3;; 


iS 


1885.86 


42.2 




0.38 






6n 


En 


1887.54 


222.7 




0.36 


. . 




in 


Sp 


1888.25 


219. 1 




0.54 


6.3.. 


6.3 


5« 


T 


1888.32 


220.1 




0.64 


6.0. . 


6-5 


2 72 


Lv 


1889.33 


217. 1 




0.66 


6.2.. 


6.2 


5« 


T 


1891.26 


221.2 




0.50 


6.0. . 


6-3 


Vt 


^ 


1892.40 


223.7 




o-5± 






111 


Sp 


1897.32 


220.8 




0.67 


6 .. 


6 + 


yi 


A 


1898.32 


212.3 




0.60 






\n 


Bow 


1899-35 


219.2 




0.58 


6.2.. . 


6.6 


2« 


A 


Discovered wi 


th 


the I 


8>^-inch 


The 


re may be 



some retrograde motion, but it is very slow. The 
components have a common proper motion, and it 
is therefore a physical system. The proper motion 
from AuwERS is o.''o9i in the direction of 2 5 8? 7. 

{(3 (xill). . ./33. . .j34. . ./3 (3114). . ./3 [Pub. L. O. 11). . .CinS. . . 
Cin*. . .Engelmann (2786). . . Lv'. . .Lv {Sid. Mess, vin, 
77). . .Tarrant (2991,3186). . .Sp (ill). . .Bigourdan (^«- 
nals Paris Obsy. 1883). . . Aitken (3465). . .Bowj-er {Man. 
Not. LIX, 400) . . . Aitken ( ) . . . ] 

P 798- Lalande 24307 
R.A. 12'' 58" 40^ 



A and BC (= H 2638) 



Decl. 



17" 



!'f 



5« /8 
in /3 



1881.38 174.3 0.54 8.1... 8.5 
1892.40 172.6 0.44 8.1... 8.5 

Discovered with the 15^-inch at the Washburn 
Observatory. 
[)3 (xilL . ./34. . .p (3142). . ./3 (Pub. L. O. II). . .] 





p 


1083. P 


azzi XIL 268 










R.A. 13'' 


0-27^ [ 










Decl. 4- 


29= 40' \ 










Band C 











// 








1889. II 


237-3 


0.49 


II. 5.. .11.7 


3" 


/? 


1897.38 


243.6 


0.42 




in 


Lew 


1898.30 


234-7 


0.40 




m 


Lew 


1898.31 


226.6 


0.3S 


I 1.2 ... 1 1.7 


in 


/8 


1898.52 


238.2 


0.47 


12.5. ..12.5 


m 


A 



1831 


2og.6 


6± 


6 . .. 


1878.42 


218.9 


6.54 


6 .. . 


1889. II 


219.9 


6.23 


6.5.-. 


1898.03 


219. 1 


6-35 




1898.31 


218.4 


6.25 


6.2. .. 


1898.52 


219. 1 


6.40 




1898.94 


217.8 


6.16 








A and 


D 







11 




1831 


6.0 


20± 


. . . 


1878.42 


7-2 


40.28 




1898.31 


9-5 


39-24 




1898.52 


8.8 


39-34 





m 


H 


m 


/? 


3« 


a 


3« 


Lew 


m 


/? 


m 


A 


m 


Bar 



15 I « H 

in ^ 

10.8 in 13 

12.5 m A 



The duplicity of Herschel's nearest companion 
was discovered with the 36-inch. This is a naked- 
eye star in Coma Berenices. It is probable that B 
and D are only optical companions. There is a 
faint nebula in the field (Dreyer 4966), 149.'! 
distant, in the direction of 36?!. 

On the occasion of my second measure of these 
stars with the 40-inch in 1898, I saw as I sup- 
posed a very minute star near A, at a distance of 
perhaps 2" in the second quadrant. When the 
measure then being made was finished, the condi- 
tions had changed, and the new star could not be 
seen. It was looked for several times subsequently 
with the 40-inch without success. I think it is a 
real star. 

[/S (XV). . .(3 (2929). . .i3'. . .(3 {Pub. L. O. II). .'.Lewis {Man. 
Not. LIX, 400) . . . Aitken ( ) . . . Barnard ( ) . ■ • ] 



P 930. B.A.C. 4389 



R.A. 13'' o" 28' 
Decl. -f 45° 55' 



1879.28 109.2 
1891.24 113.3 
1898.43 116.7 
1898.63 119. o 

1899.29 116. o 



Discovered with the 6-inch, 
in Cines Venatici. 



2.68 


6.0. 


.12.3 


.3« 


/? 


2.67 


6.2. 


.11.3 


V 


P 


2-75 






m 


Lew 


3-07 






m 


Brv 


2.70 






in 


a 



A naked-eve star 



[/3 (xin).../33.../3 (3ii4).../3 (Pub. L. O. 11)... Lewis and 
Bryant (Mon. A^ot. LlX, 400). . . 1 



124 



General Catalogue of Dotible Stars 



p 799* Groombridge ig6o 



R.A. 13'' I-" 7= 
Decl. + 73° 40' 



1881.34 
1885.61 
1888.63 
1891.30 



238 
238 
244 

245 



'•71 245-3 



0-57 
0-57 
0.65 
0.7 1 
0.83 



6.5 

6.7 
7-1 



8.5 


5'^ 


/8 




111 


H2 


8.5 


V 


Com 


9.2 


3« 


^ 



8+ yi A 



Discovered with the 15-inch at the Washburn 
Observatory. A naked -eye star in Draco. 

[/3(xn). . .|34. . .;8(3ii4). . .)3(P«(5.Z. a 11). . .Comstock {Pub. 
Washburn Obsy. vi) . . . Aitken (3395) . . . HS ( ) . . . ] 





p 


609. w 


XIII. 


27 










R.A. 13" 4 


^ 30S 












Decl. — 4 


° 18' 








1878.32 


356°! 


0.89 


7.0. . 


. I I.O 


\fi 


/8 


1879.40 


351-9 




8.0. 


. 1 1.O 


\)i 


Cin 


1880.34 


356.2 




7.0. 


. 10. 


211 


Cin 


1889.31 


349-1 


0.91 


6.8. 


. 9-8 


V 


^ 



Discovered with the 1854-inch. Probably un- 
changed. 

[/3 (x). . ./3'. . .(3 (2930). . .^ {Pub. L. O. II). . .CinS. . .Cin^ . .] 



P 608. 17 Canum Venaticorum 



R.A. I3h 4-" 33= 
Decl. -f 39° 8' 



10.5 



A and C (^^ S 24 App. I.) 

O II 

1835.69 297.5 289.98 

1867.71 297.3 287.92 
1877.42 297.3 288.25 

The close star was discovered with the 18^ -inch. 
C is 15 Canum Ve>i. Auwers gives the proper 
motions of the large stars : 







A and 


B 







II 




1878.32 


284.9 


1.22 


5-5 


1885.54 


272.4 


1.36 




1889.51 


285.0 


1.04 




1899.08 


284.7 


1. 12 





2>l 


/3 


211 


H2 


ill 


Sp 


\n 


/? 



5-5- ■ 


- 5.9 


5« 


2 


5-6.. 


. 6.1 


6;/ 


J 


5-5-- 


. 5-9 


4;/ 


Je 



A 
C 



0.107 >n 295.5 
0.029 in 284.1 



It is evident that the new star has the same 
proper motion as A. 

[/3 (x). . ./3^ . .Sp {\\\)...A (11)... Zl (1574). . . Jedrzejewicz 
(2338). . .Raddiffe Obsns. xxvi . . .Secchi {Catalogo di 1321 
Stelle Doppie, Appendix) . . . Maiebckato {Measurest 
1892)...] 





p 


93 


I . Virgifiis 


454 










R.A. 13^ 


4'" 51' 


I 










Decl. + 


13° 57' 


\ 






1879.25 




204.9 




II 
4.89 


6.7. 


.11.8 


4« 


^ 


1883.26 


208.5 




5-1 






in 


Perry 


1883.44 


204.0 




4.71 


7 . 


. 12 


in 


Ho 


1898.20 


200.4 




5.23 


7 . 


. 12 


3« 


D 


1898.32 


202.6 




5.02 


7 . 


.11.5 


in 


A 



Discovered with the 18)^ inch. No material 
change. Lalande 24489. 

[/3 (xiil). . .(33. . J. T. M. Perry {Eng. Mech. xxxviil, 192). . . 
Hough (2978) . . . Doolittle {Pub. Flower Obsy. l) . . . Aitken. 
( )...] 





p 


221. Lalande 24532 










R.A-. 13'' 


6™ 54= ) 

14° 49' s 










Decl. — 






1875-35 


4 8°. 6 


1.68 


8.1. . . 9.6 


i" 


J 


1878.43 


46.2 


1.42 


8.0... 9.5 


\n 


Cin 


1880.36 


46.4 


1.52 


8.0. . . 10. 


2n 


Cin 


1886.30 


43.5 


1.62 


8 ... 9 


m 


LM 


1896.49 


45-6 


1-34 


8.0. . . 9.0 


yt 


A 



Discovered with the 6-inch. 

[P (iv)...|9 (Man. Not. xxxiv, 382)... J (l) . . .CinS. . .Cin^ 
...LM... Aitken (3395)...] 



P 342- O. Arg. S. 12741 



R.A. I3h 8"" 49= 
Decl. — 18° 17' 



876 

877 
878 
880 
881 
882 



33 


36.3 


3-89 


11 


33-3 


4-03 


84 


34-9 


3-98 


38 


33-8 


3-96 


38 


33-8 


5-32 


33 


35-2 


4.29 


32 


34-2 


3.80 



6 


2« 


J 


5 


\n 


Cin 


7 


2« 


Cin 


5 


\n 


Cin 


5 


3« 


Sp 


5 


\n 


W 


7 


2n 


Lv 



Discovered from iSyi to i8gg by S. W, Burnham 



12! 



1892.40 


35-5 


3-96 






in 


Sp 


1893-37 


33-0 


4.84 


8.1. . 


. 8.4 


2« 


J 


1896.40 


34-4 


5.20 


8 .. 


. ^y2 


yi 


Scott 


1898.37 


34-8 


3-95 


8.0. . 


. 8.6 


y 


A 


1899.09 


37-2 


4.00 


9.0.. 


. 9.1 


\n 


/3 



Discovered with the 6-inch. In S.D. 8.2 m. 
Probably unchanged. 54 Virginis ( = Sh 151) is 
I™ 46''/ and 6' n. These two pairs are curiously 
sinailar in all respects except brightness. They 
have practically the same position angle, the same 
relative magnitudes, and differ in distance only a 
little more than i ". The measure given above of 
1896.40 certainly belongs to 54 Virginis, and this 
may be true of some of the others. 

[/3 (vi).../3( 2o62)...Zl (l)...Cin''...CinS...Cin6...Sp (II, 
III). . .Wilson (Cin'°). . .Lv'. . .Jones {A.J. 312). . .Scott 
{Brit. Asf. Asso. Yin, 66) . . . Aitken ( ) . ■ ■ ] 

P 800. Comae 201 









R.A. 13^ 


10"' 52= j 














Decl. + 


17' 40' \ 










1881.36 



121. 5 


// 
1.27 


7.1. . 


. 10 


2 


4« 


i8 


1886 


34 


1 1 8.9 


1-94 








211 


H2 


1889 


12 


117. 1 


2.17 


6.9.. 


- 9-7 


4;/ 


Com 


1890 


33 


II5-5 


2.02 


7-5- - 


. 10 


2 


yi 


i3 


I89I 


25 


1 15.0 


2.23 


7.2.. 


. 10 


7 


yi 


/3 


1892 


60 


117.8 


2.12 








5" 


Sp ' 


1894 


39 


114.7 


2.29 








in 


Com 


189s 


39 


1 15.6 


2.56 








2)1 


Com 


1896 


39 


113.1 


2.50 








yi 


Com 


1896 


40 


1 15.0 


2.60 








2// 


Lew 


1897 


39 


112.1 


2.44 








m 


Lew 


1898 


14 


1 10. 1 


2.88 








yi 


D 


1898 


32 


11 1.9 


2-57 


6.8.'. 


. 10 


3 


3" 


A 


1898 


37 


113-5 


2-33 








\n 


Bow 


1898 


39 


1 17.0 


2-53 








yi 


Lew 


1898 


54 


1 16.4 


2.54 








m 


a 



Discovered with the 151^-inch at the Washburn 

Observatory. This is a very interesting physical 

system. The change so far has been principally in 

distance, indicating that the plane of the orbit is 

nearly in the line of sight. The system has a large 

proper motion, according to Krueger, of o!'697 in 

the direction of ii3?6. Lalande 24652. 

[^ (XII)... /3^..^ {Sid. Mess. IX, 299)... /3 (3048,3114). . ./S 
(Pub. L. O. II). . .Comstock {Pub. Washbtirn Obsy. vi, x) 
{Sid. Mess. IX, 78)... Sp (in). . .Doohttle {Pub. Flower 
Obsy. i)...l,ewis and Bowyer {Mon. iVot. lix, 400)... 
Aitken ( )...HS( )...] 



p 222. Lalande 24636 

R.A. IS*" 10"" 55= \ 
Decl. — 20° 54' ) 

1867.38 12. 1 1.46 8 ... 9 m Hd 

1877.11 7.7 1.89 8.0.:. 9.0 m Cin 

1894.44 14.7 1.50 8 ...10 2« Sel 

1896.48 14.8 1.51 ... yi A. 

Discovered with the 6-inch, but it had been pre- 
viously seen by the Harvard observers, and is 
included in a list of new stars first published in 
1882. The components seem to be fixed. 

[iS (iv). . .i3 {Mon. Not. xxxiv, 382). . .Cin". . .Annals Har- 
vard Obsy. xiii. . .Sellers (3303. . .Aitken (3395). . .] 



P 1084. W XIIL 2 



R.A. 13'^ IS"" 59= 
Decl. — 4° 2' 



35 



1889.31 89.8 2.69 7.1... 12. 7 yi /? 

1898.26 88.7 2.78 7. 2... 13. 5 yi A 



Discovered with the 36-inch. The two sets of 
measures show no change. 

[(3 (xv).../3(2929)...^ {Pub. L. O. 11)... Aitken ( )...] 



P 610. Virgi?ns 504 



R.A. 1^^ 17"' 28' 
Decl. — 20° 18' 



1878.24 18.3 4.02 6. 8... 10.5 m (i 
1878.41 17.4 3.77 7.0... 10. 5 m J 

1892.25 20.3 3.69 7. 5... 10.3 yi f3 
1892.38 18.5 3.82 7.1... 1 1. 8 yi Lv 

Discovered with the 183^-inch. Apparently with- 
out change. In Gould 6.9m. Lalande 24812. 

[|3 (x)..,/3'...(3 (3142)... |3 {Pub. L. 0. ii)...Glasenapp(i) 
. . .Lv {A.J. 278) {Proc. Haverford Coll. Obsy. 1S92). . .] 



P 460. W XIII. 273 
R.A. 13" iS'" 40^ ^ 



Decl. 



15 



\ 








// 










1877.90 


36.4 


2.19 


8.2. 


. 10.5 


2fl 


J 


1878.28 


l2>-(^ 


1.99 


8.0. 


. 10.5 


Ml 


/3 


1892.38 


34-8 


2.26 


S.o. 


.10.4 


3" 


Lv 


1892.39 


33-9 


2-13 


8.1. 


. 10.0 


3« 


/3 



126 



General Catalogue of Double Stars 



Discovered with the 6-inch. There is no indi- 
cation of motion. 

[/3 (ix)...i3 {Mon. Not. xxxviii, 78). . ./S'. . .;8 (3142)... /S 
lyPub. L. 0.\l)...A (l) . . . Lv [A. J. 278) {Proc. Ilaverford 
Coll. Obsy. 1892)...] 



P 1 107. O. Arg. S. 12E 



R.A. 13'' 20'" 37= \ 








Decl. — 21° 44' \ 








I-I7 8.5.. 


. 8.5 


3" 


i8 


1.05 8.0. . 


. 8.0 


3« 


A 



1889.37 133-8 
1897-37 132-4 

Discovered with the 36-inch. 
[/S (XVI)... ^ (2956)... i3 (/'«/;. Z.O. II)... Aitken (3465)---] 



P 237. Lalande 24896 



-A. 13" 


20 


mjgs 








eel. -j- 


IS 


" 0' 








11 
2-95 




8.3- 


.10.3 


3« 


A 


2.91 




8.5.. 


. 1 I.O 


3« 


Ho 


2-95 




8.2. 


. 10.2 


7// 


En 


3.12 




8.3.- 


.11.5 


m 


/3 



1875-27 202.3 

1883.44 204.2 

1883.64 207.7 

1899.07 200.1 



Discovered with the 6-inch. This system has a 
proper motion of ofi89 in the direction of 152?: 
(Porter). It is obviously a physical pair, but the 
relative change is slow. 

[/3 (v). . ./3 {Mon.Not.XXXY,-^!). . .A (i). . .Engelmann (2678) 
...Hough (2978).-.] 



P 113. D.M. (12°) 2597 







R.A. 13" 


23™ 10=^ 












Decl. + 


12" 6' 








1875-32 


1 88^8 


1-57 


8.5-. 


. 1 1.0 


4)1 


A 


1891.25 


197.2 


1-45 


8.0. . 


. 10.2 


y 


fi 


1896.50 


203.8 


1.32 






v 


A 


1898.32 


204.2 


1-39 


8.2. . 


.11.3 


3« 


A 



Discovered with the 6-inch. Slow angular mo- 
tion, and probably binary. 

[P Cm). . ./3 {Mon. Not. xxxiv, 59) . . .(3 (3114). . ./3 {Pub. L. 
0.n)...A (i)...Aitken(3395) ( )...] 





p 


114. W 

R.A. 13" 
Decl. — 


' XIII 

28"> 0= \ 
8° 0' \ 


438 











// 










1874.30 


133-5 


1.38 


8 .. 


. 8 


\n 


ws 


1875-30 


I37-I 


1-49 


7.6.. 


. 8.0 


4Jt 


A 


1876.38 


134-5 


1.60 


8.0. . 


. 8.0 


\n 


Cin 


1876.91 


134.6 


1-43 


7.6.. 


. 8.0 


4n 


Sp 


1877.29 


132.9 


1-39 


8.0. . 


. 8.0 


\n 


Cin 


1878.43 


135-4 


1.40 


8.2.. 


- 8.5 


211 


Cin 


1880.33 


137-0 


1.50 


7.9. . 


. 8.0 


2« 


Cin 


1885.32 


139-4 


1.50 


8.7.. 


. 9.0 


4« 


W 


1885.34 


135-4 


1.60 


8.0.. 


. 8.0 


111 


LM 


1888.36 


138.8 


1-34 


7-5- - 


. 8.0 


3« 


T 


1888.49 


137-2 


1-44 


8.1. . 


• 8.3 


2« 


Lv 


1890.07 


138.0 


1.58 






yt 


Maw 


1890.40 


133-5 


1.98 


8.1. . 


. 8.2 


2« 


Gl 


1893-37 


140.7 


1. 41 


8.1. . 


. 8.3 


yi 


J 



Discovered with the 6-inch. Probably without 
change. 

[i3 (iii).../3 {Mon. Not. xxxiv, 59)... Zl (i)...^ (2086)... 
Wilson and Seabroke {Mem. R. A. S. XLlll) . . . Cin3 . . . Cin* 
. . .Cin5.. .Cin^ ..Wilson (Cin'°). . .Sp (11).. . LM . ..Lv' 
. . .Tarrant (2991). . .Glasenapp (l). . .Maw {Mem. R, A. 
5. l). . .Jones (^./. 312). . .] 





p 


932. Virghiis 


550 










R.A. 13" 


28"" 18= 


i 










Decl. — 


12° 36' 










A and B 








1879.39 




81.2 


0.47 


6.1. 


.. 6.6 


4« 


/? 


1881.37 


84-9 


0.51 


6.0. 


.. 6.8 


3« 


/8 


1884.42 


83-8 


' 0.34 




. . 


in 


HI 


1888.26 


81.6 


0.51 


6.0. 


. - 6.5 


in 


T 


1898.32 


84.3 


0.44 


6.4. 


.. 6.4 


4n 


A 






AB and C 








1879.68 


155-2 


// 
23.82 




. .12.4 


3« 


^ 


1898.32 


153-5 


25-15 




. .12.4 


5« 


A 


1899.30 


153-6 


25.10 




..12.7 


2« 


/? 



Discovered with the i8j^-inch. The measures 
of the distant star indicate a proper motion of A 
of ofo8 in the direction of 305?7. Evidently this 
belongs to both components, but there has been no 
sensible relative motion. 

This is a naked-eye star in Firgo (B. A. C. 4531) 
and said to be variable, 5 to 8 m, by Schmidt in 



Discovered from i8ji to i8gg by S. W. Burnham 



127 



1866. It seems to have been neglected since that 
time by variable star observers. It would be spe- 
cially interesting to know in which, if only one, of 
the close stars the variability occurs. This is Z 
Virginis of some of the variable star catalogues. 

[/3 (Xlll). . .^3. . .,34. . .^ [Observatory ill, 92). . .Hall (ll).... 
Tarrant {2(^r)l) ... Nature, xxvil, 617; XXX, 325... 
Aitken ( )...] 

P 933- W= XIII. 555 







R.A. 1 3" 


2gm ys ^ 












Decl. -f- 


33° 45' \ 












A and B 








1879.80 




30-7 


1.88 


8.4.. 


. 8.8 


4" 


/3 


I88I.4I 


32.8 


2.46 






\n 


Big 


1888.68 


29.0 


2.09 


8.2.. 


■ 9-2 


in 


Lv 


I89I.II 


31.6 


2.29 






3« 


Sp 


1892.40 


29.7 


2.23 






\ii 


Sp 


1895.41 


31.0 


2.20 






2H 


Sp 


1897.47 


3I-I 


2-52 


8+.. 


. 9.0 


171 


D 


1898.27 


29.0 


2.44 






VI 


D 


1898.37 


29-5 


2.32 


8.3- ■ 


. 8.7 


yt 


A 



P 934- D.M.fsr) 1855 



A and C (= H 2661) 



1830. 


28.0 


30= 


8.9. 


.12-13 I '' 


H 


1879.68 


21.8 


34.48 




■12.5 3« 


i3 


1898.27 


17.6 


34-46 




.12.0 i>i 


D 


1898.37 


16.5 


34-7i 




■12.5 in 


A 



The close companion to the principal star of H 
2661 was discovered with the i8j^-inch. The fore- 
going are all the measures of AC. There seems to 
be some change in the angle, probablvfrom proper 
motion. 

[jS (xill). . .|33. . .Bigourdan {Paris Obsns. 1883). . .Lv'. . .Sp 
(111). . .Aitken ( ), . .Doolittle {Pi(h. Flower Obsy. 1). . . J 





p 


oil. Lalande 25159 










R.A. \t 


31" 15^ 










Decl. — 


14° 7' 






878.35 




259.4 


4.63 


8.5 .. . 12.0 


2>l 


/8 


882.31 


260.1 




8.7 . . . lO.O 


\n 


^\• 


886.35 


266.0 




8.5. ..II. 5 


m 


^\• 


893.37 


263.2 


4.68 


9.0 . . . 12.0 


2;/ 


w 


898.44 


258.8 


4.S6 


8.8. . . 12.2 


2« 


A 



Discovered with the 1834 -inch. Unchanged. 
[)S (x1 ... (3 -...Wilson (Cin-") ...Wilson ( )... Aitken 



.A. 13'' 32"" 50= ) 
eel. + 51° 4' \ 



R 
Decl 



1879.28 264.1 1.04 9.0... 9.2 yi /3 

1891.31 266.5 1.26 9.1... 9.1 3« /? 

Discovered with the 183^ -inch. In D.M. 9.4 m. 
It is 2" 39^/ 2 1774 rej. 
/3 (xiii). . ./33. . .^ (3114). . ./3 (Pub. L. O. 11). . .] 





p 


612. B.A.C 4559 










R.A. 13*' 33" 40= \ 
Decl. + 11° 21 ' \ 














1878.33 




56.1 


0.23 6.0. 


. 6.0 


3« 


^ 


1878.96 


60.5 


0.24 6 . 


. 6 


4« 


HI 


1884.02 


52.4 


0.28 




5« 


En 


1886.44 


196.6 






i« 


H2 


1889.46 


166.8 


o.3± 




3" 


Sp 


1890.39 


179.7 


0.3 = 




in 


Sp 


1891.28 


191. 1 


0.2S 6.4. 


• 6.5 


3« 


^ 


1891.44 


191. 1 


0.32 6 . 


. 6 


3^' 


HI 


1891.49 


I86.I 


0.2± 




\n 


Sp 


1892.14 


198.7 


0.31 6.3. 


. 6.5 


3« 


/3 


1892.37 


196.9 


0-35 




in 


H2 


1892.40 


194.6 


0.25 




y 


Sp 


1893.42 


207.4 


0.36 6.1 . 


. 6.2 


5-1'' 


W 


1893.45 


199.9 


0.28 




4» 


Sp 


1893.47 


193.1 


0.39 




m 


Lew 


1893.58 


s 


ingle 




m 


Com 


1894.12 


207.4 


0.32 




4" 


Bar 


1894.28 


203.7 


0-3- 




m 


Com 


1894.48 


203.7 


0.29 




V 


Sp 


1895.32 


210.6 


0.52 6.4. 


. 6.5 


m 


Lew 


1895.40 


209.3 


0.30 




m 


Sp 


1895.42 


212. I 


0.2S± 




A>i 


Com 


1896.37 


212.5 


o.4± 




in 


Com 


1896.41 


212. I 


0.34 




in 


Lew 


1897.21 


222.6 


0.38 




y 


A 


[897.36 


223.9 


0.33 




m 


Lew 


1897.42 


217.3 


0.30 




bn 


Sp 


1898.32 


210.9 


0.48 




i« 


Bow 


1898.40 


221.0 


0.39 




m 


Lew 


1898.47 


225.1 


0.36 




m 


Sp 


1898.61 


231.5 


0.2S 6.2. 


. 6.2 


3« 


A 


1899.25 


227.7 


0.29 6.5. 


. 6.5 


4" 


A 



Discovered with the 18^-inch. It wasverv soon 
apparent from the measures that this was a binary 



128 



General Catalogue of Double Stars 



system in rapid motion. In the twenty years cov- 
ered by the measures, the companion has passed 
over an arc of 175°. Glasenapp, from the meas- 
ures down to and including 1892, has computed an 
orbit from which he finds a period of 30.00 years 
{Asfrono)/iy a/id Astro-Fliysics, June 1892). This 
represents the observations as well as could be 
desired, but evidently the arc was too short for any 
very accurate determination, and even now widely 
differing apparent orbits will satisfy the observed 
positions equally. It is probable that the measures 
of the next ten years will furnish sufficient data for 
an orbit which shall be substantially correct. The 
principal measured positions are shown on the 
accompanying diagram : 




-2-fO 



5(P 



/3 612 



This is a naked-eye star in Virgo. It has no 
sensible proper motion. 

[/3 (x)...^'...^ (3114,3142)... (3 {P,d>. L. O. n)...;3 {Sid. 
Mess. X, 323) [Astronomy &= A.-P. xr, 268). . .Hall (i, 11; 
. . .Engelmann (2678). . .Sp (ill). . .Wilson ( ) . . .Corn- 
stock (Pub. Washburn Obsy. x) . . . Lewis [Mon. Not. Liv, 
316; Lix, 400) {Greenwich Obsns. 1895). . .Everett {Mon. 
Not. LVi, 464). . .Glasenapp {Astronomy &^ A.-P.ai, 466) 
...Barnard (A./. 447)... HS ( )... Lewis ( )... 
Aitken ( ). . .] 





p 


223. L 

R.A. 13^ 
Decl. - 


alande 25350 

38" 58^ ) 
2° 43' i 






1875-65 


343-7 


il 

18.73 


7.9. . . II. I 


yi 


A 


1879.40 


343-1 


18.93 


S.o. . . 10.5 


in 


Cin 


1880.33 


344-7 


18.75 


8.0. . . 10. 


m 


/? 


1889.37 


344-7 


18.56 


7.8. ..II. 3 


2« 


T 


1899.07 


344-3 


18.98 


8.0. . . II. 


i?i 


/? 



Discovered with the 6-inch. 

[i3(iv)...)3 (/J/o«. iVo/. xxxiv, 382). . ./33.. .zl (i)...Cin5. 
Tarrant (3186). . . ] 



15' Lalande 25365 






R.A. i3'» 39"' 24S I 
Decl. + 9° 40' \ 






1.42 8.0. . . 11.5 


2// 


J 


1.64 8.0 . . . 10.4 


yi 


i8 



1877.40 224.4 
1891.25 223.6 

Discovered with the 6-inch. There is an error 
in the declination given in y8 (iii). 

[/3 (III). . ./3 {Mon. Not. xxxiv, 59) . . ./3 (3114). . ./3 {Pub. L 
0.n)...A{i)...] ■ 



P 935- 86 Virgitiis 







R.A. 13^ 


39" 33' I 












Decl. — 


11° 49' \ 












A and B 








1879.37 




298.4 


1.61 


5-5-- 


10.5 


5« 


y8 


1879.50 


293-5 


1. 61 


6 .. 


1 1 


S'l 


HI 


1880.42 


299.9 


1.63 






2)1 


Cin 


1881.44 


296.1 


1-33 


6.0. . 


9-7 


211 


/3 


1885.38 


290.3 


1.70 






271 


HI 


1889.30 


299.6 


1.66 


5-8.. 


10. 


2," 


/3 


1897.40 


293.8 


1-52 


6.0. . 


10. 


yi 


A 


1899.20 


297.9 


1.63 




9.8 


yi 


/3 






C and D 








1879.40 




274.2 


II 
1.72 


II. 6. .. 


12.8 


A,n 


^ 


1879.50 


276.1 


I. So 


12 . . 


13 


2)1 


HI 


E889.30 


275-9 


2.24 


10.5.. 


1 1.2 


3« 


iS 


1897.40 


270.6 


2.09 


11 . . . 


12 


3« 


A 


1899.20 


273-7 


2.03 


TI.5. .. 


12.4 


2« 


^ 



Discovered from iSji to i8gg by S. W. Burnham 



I2Q 



1836.40 


160.3 




1879-33 


164.7 


26.94 


1889.30 


164.6 


27.17 


1899.20 


164.3 


27.07 



A and C (= 2 1780 rej) 

i« H 
2« /? 
in ^ 

y (i 

Both components of Struve's rejected pair were 
found to be double with the i8i^-inch. With a 
large aperture it is one of the finest of the quad- 
ruple groups. 

According to Auwer.s, 86 Virginis has a proper 
motion of o;'o43 in the direction of 287? 5. The 
measures of AB show conclusively that this move- 
ment belongs to both stars. With this proper mo- 
tion and the position of B in 1879, the latter star, 
if fixed in space, for 1897 should be 3o8?2 : 0^86. 
It is evident that no such relative change has taken 
place. The measures are insufficient in point of 
time to show whether or not the double companion 
is moving with the principal star. All the meas- 
ures of AC are given above. 

In making the measures of 1889 with the 36- 
inch, two new nebulae were discovered in the field. 
One is 4>^V ^nd 136 f8 s, and the other 195^'/ 
and 1 01 f6 s. 

[j3 (xill).../33...(34...(3 (293o)...Cin«.. .Hall (I, 11)... 
Aitken (3465)...] 

P 801. Lalande 25399 



R.A. 13'' 40" 43S 
Decl. + 11° 26' 



I88I.3I 


328.0 


2.76 


8.1. 


. 10.9 


3« 


/3 


1888.39 


326.5 


2.66 


8.5. 


.10.5 


3« 


Com 


1898.37 


324-3 


2.62 


8.1. 


• 9-7 


V 


D 



Discovered with the 151^ -inch at the Washburn 
Observatory. 

[/3 (xil). . ./3-». . .Comstock [Pub. Washburn Obsy. vi). . .Doo- 
little {Pub. Flower Obsy. l). . . ] 

P 413- Lacaille 5686 



R.A. 13'' 42" 16' 
Decl. — 27° 46' 



1877-37 


109. 1 


78.68 


7-5- 


. 9.0 


i« 


Cin 


1879-33 


108.8 


78.00 


6.2. 


. 8.5 


If 


18 


1885.32 


108.7 


77-77 


7.0. 


. 8.0 


\n 


W 


1889.39 


109.5 


77.66 


7-7- 


. 9.2 


2)1 


/8 


1899.27 


108.6 


76.88 


8.0. 


. 9.0 


211 


^ 



The distant companion to this blood-red star 
was noted with the 6-inch. It is not likely to be 
of any interest as a double star. The color of the 
principal star is very striking. It is not given in 
any of the catalogues of red stars. The measures 
indicate a proper motion of o!o7 nearly in the line 
of the components. 

[;8 (vil).../3 (2103,2957)... )33...j3 {Pub. L. O. 11). ..Cin^.. 
Wilson (Cin^o)...] 



P 802. D.M. (49') 2245 



R.A. 13^ 43'n 48= 
Decl. + 48° 57' 



1881.33 223.9 3-43 7-8...II.O 37/ /3 

1885.54 220.8 3.73 ... yi H2 

1888.44 221.3 3-65 8.0... II. 7 3« Com 

Discovered with the 151^ -inch at the Washburn 
Observatory. 

[j3 (xil). ../3*. . .Comstock [Pub. fVas/iburn Obsy. vi) . . .HZ 





p 


343. Cejitaiiri 


21 


9 










R.A. I3'> 


45" 8=^ 














Decl. — 


31° I' 















// 












1877.41 


130.2 


1.44 


6.0. 




8-5 


i« 


Cin 


1889.37 


129.7 


1.70 


6.2. 




7-t 


4« 


^ 


1894.45 


122.0 


0-93 


6 . 




8 


2« 


Sel 


1897.22 


123.0 


1.05 


6.4. 




8.0 


3« 


See 


1898.32 


118.7 


1.28 


6.5. 




7-4 


3« 


A 



Discovered with the 6-inch. Apparently slow 
retrograde motion. In Gould 6.7 m. B.A.C.4624. 

[/S (vi)...|8 (2062.2957)... /3 {P'ib. L. O. ii)...Cin^..Sellors 
(3303) ... See (3496) • • • Aitken ( ) . . . ] 



P 613. D.M. (35)2494 

R.A. 13^ 46"' 3^ \ 
Decl. -f 35° i6' S 







A and B 








1878.42 




146.2 


// 
0.78 


9.0. 


. . 9.0 


\n 


^ 


I8S0.37 


149-3 


0.92 


9.0. 


. . 9.0 


\)i 


ii 


1892.13 


149-7 


0-73 


9.1. 


.. 9.1 


3" 


(i 


1898.43 


153-6 


0.48 






i« 


Lew 


1898.44 


153-5 


0.S7 


9.0. 


- 9-9 


4« 


D 



I^O 



General Catalogue of Double Stars 







AB 


and C 








ISS0.37 


83-4 


49.21 


. 


. 8.8 


\}i 


/8 


1892.15 


83.2 


48.75 




. 9.0 


2)1 


/8 


1898.44 


82.1 


48.73 




. 8.9 


A" 


D 



Discovered with the 18^-inch. It is I2^4/ the 
6 m star, B.A.C. 4628. Some change in the close 
pair is probable. 

[^ (x)...^\..p (3142)...^ (Pub. L. O. 11). ..Lewis (Mon. 
Not. Ll.\, 400) . . . Doolittle (Pub. Flower Obsy. l) . . . ] 



P I108. B.A.C. 4631 







R.A. 13'' 


46" 32" \ 
35° 4' \ 












Decl. — 












A and B 








1889.38 


84^0 


1.28 


6.0. . . 


6.0 


yi 


^ 


1893.47 


86.3 


0.83 


6 . . . 


6 


2« 


Sel 


1897-37 


86.5 


0-99 


6.0. .. 


6.0 


3« 


A 



AB and C 

o // 

1889.38 168.2 27.52 



m ^ 



AB and D (= H' V. 124) 



1783.08 ... 54.02 

1889.38 359.0 65.21 



ifi H' 

8.5 y' /3 



Discovered with the 12-inch, but it had been pre- 
viously seen and recorded by Howe. Lacaille 
5726. 

[/3 (xvi).../3 (2956)...^ {Pub. L. O. II)... Howe (Cin')... 
Sailors (3240) . . . Aitken (3465) . . . ] 





li 


614. Lalande 25573 










R.A. 13^ 48"" 2= ) 










Decl. + 10° 44' 






1878.37 


2 68^3 


0.60 8.0 ... 1 1.7 


21! 


/s 


1889.40 


271 I 


0.44 7.8 ... II. 2 


V 


/8 



This very difficult pair was discovered with the 
18^-inch. The principal star is identical with 
that of 02 271, which was marked " oblonga?" in 
the Poulkowa Catalogne of 1843, but rejected as 
single in the revised edition of 1850. It is not 
certain that the very minute star now measured has 
any connection with the suspected elongation pre- 
viously noticed. At the time of making the meas- 



ures given above, the principal star was perfectly 
round, with the 18 J^ and 36-inch refractors. It is 
the southern star of three in the field. 

L^ (X). . ./3'. . .^ (2199,2957). . .;8 (Pub. L. O. II). . .] 



P 461. W XIII. 850 



R.A. 13!' 50™ 36= 
Decl. -f 3" 34' 



A and B 



1879.38 234.9 33.33 
1893-36 235.1 33.33 
1899-37 235.9 33-12 



7. 5... 12. 5 \n /3 
7.7 .. . 12.2 3« W 
7 ... 12.2 2« ^ 







A and C 








1879.38 


216.3 


40.55 




. .11.8 


\n 


f 


1893.36 


216.6 


40.50 




- -II-3 


VI 


w 


1899.37 


216.6 


40.84 




..12.3 


2 71 


/? 



Noted with the 6-inch. Of no particular inter- 
est as a double star. 

\P(iy.)...^(Mon. Not. XXXVIII, 78)... ,83... Wilson ( )...] 



P 936, D.M.(35°)25o5 



R.A. 13I' 51" 



13 s 



1880.37 
1892.13 

1898.51 



97-8 
95-8 
95-9 



3.94 8.4. . . 12.2 211 /3 
4.58 8. 5... 1 1. 3 3;/ fi 
4.66 8.7 . . . 12.0 3« A 



Discovered with the 18^^ -inch. Probably fixed. 
[j3 (xiii) ... (33. .. (3 (3142) . . . /3 (Pub. L. O. n) ... Aitken 



P 937. W= XIII. 1 122 

R.A. i3'>5i" 52^ { 
Decl. -f 35° I' \ 

O It 

1880.37 104.8 0.94 8.1... 8.3 3« P 



1890.48 108.8 0.77 

1896.49 102.8 0.88 



2n Sp 

!+ 3« A 



Discovered with the i8^inch. Very little, if 
any, change. 

[iS (xiii). . .;83. . .Sp (III). . .Aitken (3395)- - -1 



Discovered from i8']i to i8gg by S, W. Burnham 



131 



P 344- O.Arg. S. 13285 







R.A. 13^ 


52 


"' 22= 












Deal. — 


24 


" 57' \ 








1877.29 



121. 1 


3-32 




9.0. . 


. 9.0 


\7l 


Cin 


1879.27 


125-7 






9.0. . 


■ 9-5 


\n 


Ciii 


1880.33 


124.4 


Z-Z^ 




8.0. . 


. 9.0 


2n 


Cin 


1898.32 


123.8 


3-44 




8.7.. 


. 8.8 


3« 


A 



Discovered witii the 6-inch. There is no evi- 
dence of change. 
[|8(vi)...^ (2o62)...Cin<...Cin5...Cin«...Aitken ( )...] 

P 30. D.M. (20°) 2904 







R.A. 13^ 


52 


™ 26= \ 












Decl. + 


20 


° 3' \ 








1875-25 


199.8 


// 
7.82 




8.2.. 


II-5 


7.) I 


A 


1892.24 


200.0 


8.05 




8.0. . 


10.4 


3« 


^ 


1892.29 


199.6 


8.29 




8.0. . 


II. 


A>t 


Lv 


1898.36 


198.8 


8.27 




8.1. . 


I I.O 


2« 


Gl 


1898.37 


197.2 


8.18 




8.0. . 


9-7. 


211 


D 


1898.46 


201.3 


8.75 




. . 




\n 


Lew 



Discovered with the 6-inch. 

[|8 (l). . .(3 (Mon. Not. xxxill, 351). . ./3 (3142). . .(3 {Pub. L. 0. 
n)...A (l). . .Lv i^A.J. 278) {Proc. Haverford Coll. Obsy. 
1892). . .Glasenapp (v). . .Doolittle {Pub. Flower Obsy. i) 
. . . Lewis {Mon. Not. Lix, 400) . . . ] 





p 


II97. Lacaille 5791 










R.A. i3'> 
Decl. — 


56'" 4^ \ 
31° 6' S 






1890.41 

1897-37 
1897.42 


i78°9 
187.9 
185.2 


0.86 

0-93 
1. 18 


6.8. .. 8.1 
6+... 8+ 

6.9. . . 9.2 


3« 

in 


/8 
A 
See 



Discovered with the 12-inch. There may be 
some change in the angle. 

[j3 (xvn)...i3 (3047 )...|3 (/>/./;. L. au)...Aitken(3465)... 
See (3496)...] 





p 


1270. Lalande 25825 










R.A. 13" 57"' 46' / 
Decl. + 9' 4' i 






1892.27 
1896.40 

1897.41 




329-7 
356.2 
346.0 


0.27 8.2 .. . 8.3 

0.43 
0.27 


3" 
m 


ft 

Lew 

Lew 



0.36 






2« 


Lew 


0-45 


, . 




m 


Bow 


0.24 


8.2.. 


. 8.5 


3« 


A 



1898.44 341-8 
1898.44 344.9 
1899.24 361.5 



Discovered with the 36-inch. In D.M. 7.9 m. 
Change in angle appears certain, but further meas- 
ures are needed. 

[iS (xix). . ./S (3141). ../3 {Pub. L. O. n). ..Lewis and Bow- 
yer {Mon. Not. Lix, 400). . .Aitken ( ). . .] 



P 938. O. Arg. S. 13375 







R 


A. 13" 


59 


.29s ^ 












D 


eel. — 


26 


° o'\ 















II 












1879.39 


1 17.6 




0.89 




7-5-- 


■ 7-5 


2« 


ft 


1892.40 


117. 1 




0.65 




7.9. . 


. 8.2 


yi 


ft 


1892.41 


299.1 




0.62 




7-5- - 


■ 7-7 


3« 


Lv 


1897.42 


III. 5 




0.72 




8 .. 


. 8 


in 


A 



Discovered with the 185^ -inch. Probably un- 
changed. It is 6' n of TT Hydrae. 

[iS (XIII). . .i33. . .^ (3142). . .^ {Pub. L. O. II). . .Lv {A.J. 278) 
{Proc. Haverford Coll. Obsy. 1892). . .Aitken (3465). . .] 



P II09. D,M. (5") 2846 
R.A. I4'> 3"" 18^ \ 







Decl. +5° 14' \ 












A and B 








1889.39 




321.9 


1.78 9.0. 


•13-7 


l» 


ft 


1899,24 


314.8 


1.85 9.0. 
A and C 


.13.0 


2 71 


A 



1889.39 356-3 53-04 
1899.18 355.3 53.30 



v ft 



9.0 in 



Discovered with the 36-inch. 
[/3(xvi)...|3(2956).../3 {Pub. L. O. u)... Aitken ( )...] 

P 803. Lalande 25991 







R.A. 14" 


4"" 


46^ \ 












Decl. — 


2° 


6'i 








881.45 




227.9 


5-27 




7.8.. 


. I 2.0 


in 


ft 


892.40 


226.5 


5-54 




7.4. . 


.11.3 


3" 


ft 


899.27 


224.6 


5-67 




7.5. . 


.11.7 


2// 


ft 



1^2 



General Catalogue of Double Stars 



Discovered with the i5j^-inch at the Washburn 
Observatory. Another pair found at the same 
place is 30^/. 

o 

1881.37 243.6 
1899.27 243.5 

[^ (XII). . .^4. . ./3 (3142). . .j3 {Pub. L. an)...] 



4-33 


8.8,. 


■ 9-5 


in 


^ 


4.70 


9.0. . 


• 9-2 


2« 


^ 





P 


224. w 


XIV. 


95 










R.A. 14*^ 7 


" 38= ) 
^ 8' \ 












Decl. + 13 








1875.64 




71.0 


0.71 


8.9.. 


9-3 


yi 


A 


1879.47 


61.7 


0-95 


9.0. . 


9-5 


211 


Sp 


1884.98 


68.6 


0.78 


8.2. . 


8-5 


S" 


En 


1893.36 


65.0 


0.88 


7.8.. 


8-3 


in 


W 


1898.20 


63-7 


0.86 






5» 


D 


1898.32 


65.6 


0.69 


8.3.. 


8-5 


3^' 


A 



Discovered with the 6-inch. Change uncertain. 

[/3 (IV)... /3 {Man. Not. xxxiv, 382).../] (l)...Sp (11)... 
Engelmann (2678) .. .Wilson ( ) . . .-Doolittle {Pub. 
Flower Obsy. l) . . . Aitken ( ) • ■ ■ ] 



P 939. Lalande 26065 

R.A. 14'' 7™ 48^ ) 
Decl. — 7° 57' 1 

A and B 

I 0.65 8.0. .. 8.1 2« /8 

9 0.45 ... 2« Sp 

5 0.68 8.0. . . 8.4 in Lv 

3 0.6 zb ... 2ti Sp 

9 o-35± ... i« Sp 

5 0.71 8 ... 8 3« D 

AB and C 



1879.37 280.9 87.25 . . . 9.0 m /? 

1898.27 280.0 87.63 ... 9 in D 

Discovered with tiie 18%-inch. Apparently 
without change. 

[/3 (xni).../33. . .Sp (in). . .Lv'.. .Doolittle {Pub. Flower 
Obsy. !)...] 



1879.92 


156. 


1887.46 


147. 


1888.34 


147. 


1892.39 


149. 


1895.40 


150. 


1898.27 


147. 





^ 


1246. B.A.C. 4740 










R.A. 14^ 12"" 12^ \ 
Decl. —25° 16' \ 










A and B 






1891.43 
1898.52 




187. 1 
189.2 


2-99 5-5---I3-5 
3.30 5. 5... 13. 8 

A and C 


in 
2.n 


13 
A 



1891.42 88.8 36.35 
1898.44 92.0 39-09 
1898.52 93.0 39.05 



13-5 



m /3 
in /3 

2« A 



Discovered with the 36-inch. The principal star 
has a large proper motion, o!'458, in the direction 
of 307?o (Porter). The change in the position 
of C is explained by this motion of A. The com- 
panion to A evidently has the same proper motion, 
and the two doubtless form a physical system. 
Lacaille 5892. 

[(3 (xviii).../3(3ii3)...(3(/'«*. Z. a II)... Aitken ( )...] 





P 


mo. 


Taylor 


6665 










R.A. I4'> 


12" 295 


( 










Deck — 


36° 18' 






188939 


130-7 


3-95 


7-0 


...12.3 


3« 


y8 


1897.37 


133-4 


3-52 


6.9 


. . . 14.2 


in 


See 


1898.52 


131. 2 


3-78 


7-2 


. .11.7 


in 


A 


Discovered wi 


th the 1 2 


-inch. 


So far 1 


inch 


angec 


[/3 (XVI).. 


.13 (2956)... /3 (Pu 


/'. L. 0. II)... See (3496).. 


Aitken ( ).. 


■ ] 












P 


116. L. 

R.A. 14" 


ilande 
13m 3s 


26177 

( 










Decl. — 


13° 9' 






1875.69 



279.0 


2.90 


7-7 


.. 8.2 


3« 


J 


1876.38 


278.7 


3-21 


8.0 


.. 8.5 


2n 


Cin 


1877.41 


278.2 


3.08 


8.0 


.. 8.5 


m 


Cin 


1878.42 


277.4 


2.98 


7-7 


.. 8.2 


2n 


Cin 


1880.37 


278.3 


3.08 






in 


Cin 


1885.28 


278.7 


3.12 


8.0 


.. 8.5 


m 


W 


1886.30 


279.2 


3.06 


8 


.. 8 


\n 


LM 


1888.36 


98.6 


3.16 


7-7 


.. 8.5 


3« 


T 


1888.36 


277-7 


3.01 


8.2 


. . 8.2 


2n 


Lv 


1890.41 


279.1 


3-32 


7.8 


.. 8.1 


2« 


Gl 


1893.38 


276.5 


3.08 


7-8 


.. 8.0 


in 


J 



Discovered from i8ji to i8gg by S. W. Burnham 



133 



Discovered with the 6-inch. No material change. 
It is 20' n of A Virginis. 

[/3(nij. . ./3 i,Mon. Not. xxxiv, 59)... 4 (i). . .Cins. . .Cin-"... 
Cin3 . . . Cin* . . .Wilson (Cin'°). . .LM. . .Lv'. . .Tarrant 
(2991) . . .Glasenapp (l) . . .Jones {A.J. 312) . . . ] 



P 1271. Radcliffe 3181 







R.A. 14" IS-" 45 j 












Decl. +55= 6' S 








1892.36 




355-2 


2^81 6.8.. 


. 12.0 


yi 


^ 


1897.58 


351-0 


2.31 7.0.. 


. 12.0 


3« 


A 



Discovered with the 36-inch. In D.M. 7.0 m. 
[(3 (XIX). . ./S (3141)- ■ -^ (P'ib- L. 0. II). . .Aitken (3465J. . 

P 1272. O. Arg. X. IU51 



R.A. ^i* 13" 22== 
Dec]. + 49' 18' 



IS92.17 
1897.52 
1897.56 
1898.53 
1898.63 



^3^-D 
132.8 
126.5 
129.3 
134-2 



A and B 
8.4 



1.25 
1-32 
1. 14 
1. 18 



8 + 



9-5 



1-44 
A and C (= H 2710) 

9 



4« 

2)1 

3« 

171 



/3 

Lew 

A 

Lew 

Bry 



in 


H 


A>i 


/3 


in 


Brv 



1830 324.0 25± 9 ...10 

1892.17 321.8 23.67 ... 8.6 

1898.63 321.4 23.60 

The duplicity of the principal star of H 2710 
was discovered with the 36-inch. Thus far there 
appears to be no certain change, and the same is 
true of the distant star. All the measures of this 
are given above. C is O. Arg. N. 14448. 

[/3(xix)...j3 (3i4i).../3 (P«3. Z. a ii)...Aitken (3465)... 
Lewis and Bryant {Mon. Not. Lix, 400) . . . ] 

P 1273. O. Arg. X. 14457 







R.A. 14'' 


14' 


n 25 ) 

' 28' i 










Decl. + 48 






1892.17 


193.0 


1.08 




8.6. . . 9.8 


3« 


y8 


1897.52 


193-3 


0.94 






zn 


Lew 


1897.56 


187. 1 


i.oS 




9 . . .11 


3" 


A 


1898.53 


199.4 


o.So 






in 


Lew 


1898.63 


193.6 








m 


Bry 



Discovered with the 36-inch. 

[/3(.xix)...^ (3141)...^ (/'«(^. Z. a ii)...Aitken (3465).., 
Lewis and Bryant (Mont. Not. Lix, 400). . .] 



P nil. Piazzi XIV. 69 

R.A. 14*' 1 7" 295 ) 
Decl. + 9' o' \ 

B and C 



1889.40 
1890.43 

1892. 1 7 

1898.44 
1898.48 
1898.57 



1832.08 
1853.98 
1866.72 
1885.41 

1889.40 
1889.80 
1892.17 
1898.48 
1898.56 



321.2 

336-1 

336-6 

18.4 

19.0 



0.19 

0.25: 

0.21 

0.30 

0.22 

0.28 



«-4 

8.2 



8.2 
A and BC (= 2 1835) 



«-4 3« P 

2« Sp 

8.6 4« /? 

2« Lew 

3« /3 

8.2 4n A 



186.5 
189.5 
188.4 
187.9 
1S9.6 
188.4 
189.3 
189.5 
1S9.9 



6.06 
6.27 
6.24 

6-33 
6-36 
6.29 
6.2:; 



6.47 



:3-3 - 
4.8. 

5-7 ■ 
4-5- 
5-4- 



6.8 
6.S 
7-0 
6.-5 



0" 
6n 



2 

J 
J 



8.0 



yi Per 

3« P 

6n Sp 

2n p 

3« P 

3« A 



The duplicity of the smaller component of 
2 1835 was discovered with the 36-inch. The 
measures of only nine years are sufficient to show 
that this is a binary in rapid motion. It will prob- 
ably take a place with the short period systems. 
Thus far the motion has been about 7° per 3'ear, 
with little or no change in the distance. It is not 
improbable that the distance now is about maxi- 
mum, and that the mean angular motion is much 
more rapid. 

There has been no change in the position of this 
star with reference to A. A few of the measures 
are given. The principal star is B.A.C. 4766. 

r,3 (XVI). ../3 (2956,3142)... /3 {Fub. L. O. II). ..Sp (in)... 
Lewis {Mon. Not. lix, 400) . . . .\itken ( ) . . . ] 

The wide pair, 2 1S35, is also H' II. 38 = .Sh 177. 
These original catalogues, and the following include 
all the measures : 

[Madler {Fixslern-Systenu I, ll) {Dorpat Obsns. X, xil, Xlll 
xv) . . . Madler (324) . . . Dawes {Meiisures at Bishop's Obsy^. . . 
Herschel {Fourth Catalogue). . .Secchi (Catai'ogo di 1321 SieU<- 



134 



General Catalogue of Double Stars 



Doppie). . . Wrottesley (Mem. R. A. S. xxix). . .Obsns. at Bar- 
clay's Obsy. II, III. . .Raddiffe Obsns. xxil. . .Duner {Measures 
Mic. iTEtoiles Doubles, Lund, 1876). . .Gledhill, Wilson and 
Seabroke {Mem. R. A. S. XLll, XLlll)...^ (l, 11) . . . J (1031 
1036). . . Perrotin (2684,2748) {Measures Mic. d'Etoiles Doubles) 
...See and Wellman {Beob. Siern. Berlin, No. 6, 1892)... 
Glasenapp (i, iii). . .] 



P 615. O. Arg. N. 14509 







R.A. 14" 


17 


" 52= ) 












Decl. + 


49 








1878.30 




237-1 


2-35 




8.5 ■• ■ 


9-5 


\n 


/8 


892.17 


236.6 


2.84 




8.5--- 


9.8 


V 


/S 


1892.37 


235-0 


2.52 




8.4... 


9.8 


VI 


Lv 


1898.28 


233-1 


2.82 




8.4... 


9.9 


S'l 


D 



Discovered with the 18^ -inch. Motion in angle 
is probable. 2 1834 is 2" exactly preceding. 

[iS (x)...B'.../3 (3142)... /3 {Fub. L. O. II)... Lv {A.J. 278) 
{Proc. Baverford Coll. Obsy. 1892) . . .Doolittle {Pub. 
Flower Obsy. l). . .] 



P 225. Lalande 26320 







R.A. 14'' 


18™ 48= 


\ 










Decl. — 


19° 26' 


\ 










B and C 








1867.39 




102.5 


;; 
1.06 


7 • 


■ ■ 9 


\ii 


Hd 


1875-71 


IOI.9 


1.40 


7-3- 


. . 8.2 


yi 


J 


1877-39 


I0I.8 


1-34 


7-5- 


-. 8.5 


211 


Cin 


1880.38 


lOI.O 


1.36 


8.0. 


. 9.2 


211 


Cin 


1890.39 


IOI.5 


1.66 


7-2. 


• 7-9 


in 


Gl 


1893.49 


98.7 


1.24 


1%. 


• 9 


m 


Sel 


1897.38 


IOI.3 


1.58 






yi 


D 


1898.34 


96.5 


1-37 


7.0. 


. 8.2 


4« 


A 




A and B (= H' 


N. 80 = 


Sh 179) 






1822.60 


2 95°8 


/; 

35-12 


7 •- 


- 7 


3« 


Sh 


1847.70 


295-7 


35-23 








Jacob 


1875.70 


295-5 


35-03 


6.0. 




3^ 


J 


1890.39 


295-3 


35-56 


6.8. 




2>l 


Gl 


1897.34 


295-4 


35-24 


6 . 


- 7 


VI 


D 



The close pair was discovered with the 6-inch. 
It is found, however, in the subsequently published 
observations of the Harvard Observatory. 



There is no change in AB, and very little, if 
any, in the close pair. This is a naked-eye star in 
Virgo, according to Heis, but Gould places it in 
Libra. All the measures of the wide pair are given 
above. 

[;8 (iv).. .^ {Mon. Not.TLyiyiXM , 382). . .zl (i). . .Cin". . .Cin«.. . 
Annals Harvard Obsy. xill . . . Glasenapp (l) ... Jacob 
{Mem. R. A. S. xvil). . .Sellers (3240) . . . Doolittle {Pub 
Flower Obsy. l). . .] 



P 940. 52 Hydrae 







R.A. 14'^ 


21-" 9= \ 










Decl. — 


28 


'57'f 






1879.42 


276^8 


/; 
4.00 




5.0. . .11.3 


yi 


/3 


1889.38 


278.7 


4.27 




. . . 10.8 


3« 


i8 


1897.44 


278.7 


• 5-37 




.. .13 


211 


See 


1899.27 


277-5 


4-37 




... I I.O 


211 


/3 



Discovered with the i8j^-inch. The principal 
star has a proper motion of o!'o63 in the direction 
of 228?4. It is probable that the companion is 
moving with it, as otherwise the distance would be 
less at the date of- the last measures, and the angle 
nearly 15° more than it was in 1879. 

[iS (xiii). . ./33. . .,3(2957). . .^{Pub. L. O.ii). . .See(3496). . .] 



P 462. S.D. (3°) 3635 







R.A. 14" 23" 46= I 












Decl. — 3° II' i 












A and B 








1877-48 


324-4 


2.01 9.5 . . 


9-7 


211 


J 


1880.32 


328.9 


1.96 9.0. . . 


9-3 


111 


fi 


1891.30 


325-1 


2.16 9.1 . . 


9-1 


VI 


/3 


1898.36 


325-4 


2.22 9.0. . . 

A and C 


9-2 


in 


D 


1880.32 




65-4 


// 
14.81 


12.0 


m 


/? 


1898.36 


66.5 


15.38 


9.8 


in 


D 



Discovered with the 18 3^ -inch. 

[/3 (ix). . .|3 {Mon. Not. xxxviii, 78). . .,33. . .,3. . .(3114). , 
{Pub. L. O. II). . .Doolittle {Pub. Floiver Obsy. l). . .] 



Discovered from iS^i to i8gg by S. W, Burnham 



JD 



P 117- Lalande 26481 



R.A. m'' 24"" 43= 
Decl. — 15° 4' 



\ 



1867.37 
1876.64 
1877. II 
1879.39 
1880.33 
1880.38 
1883.42 
1883.46 
1884.41 
1886.35 
1888.35 
1888.39 
1890.44 
1898.43 



96.7 
95.8 

93-8 
96.0 
91.4 
92.0 

95-4 
92.9 

95-3 
93-7 
92.9 
90.4 
96.6 
93-0 



Hd 

J 

Cin 

Cin 

/8 

Cin 

HI 

a 

HI 

W 

T 

Lv 

Gl 

D 



2.16 ... m 
2.44 8.3... 9.2 3/z 
2.05 8.0. . . 9.0 I// 

... 8.0... 9.0 m 

2.18 7.8. . . 8.5 m 

2.41 7-5- • • 8.5 i« 

2.36 ... 2« 

2.17 ... in 
2.36 ... yi 

2.58 7.5. . . 8.5 m 

2.26 8.0. . . 9.0 2« 

2.29 8.2 . . . 8.9 291 

2.53 8.1 .. . 8.8 2?i 
2.24 7.4. . . 8.8 4// 

Discovered with the 6-inch. There is no rela- 
tive motion, but it is undoubtedly a physical sys- 
tem, as the components have same large proper 
motion of 0^424 in the position-angle of 153^2 
(Porter). This pair had been previously seen by 
the Harvard observers, but not published until long 
after (i (in). 

[/3 (in). . ./3 (Mon.Not. xxxiv, 59). . .^3. . .Annals Harvard 
Obsy. XHI ... Cin < . . . CinS . . . Cin« . . . Hall (ll) . . . 
Wilson (Cin'"). . .Tarrant (2991). . .Lv'. . .Glasenapp (l) 
. . .Doolittle (Pub. Flower Obsy. l). . .] 

P III2. Lacaille 5893 

R.A. 14^ 26'" 3' 
Decl. — 30° II ' 

O 11 

1889.41 7.6 2.44 6. 3... II. I 6n fi 

1897-37 3-1 2.46 ... 3« A 

1897.41 7.7 2.66 5. 8... 12. 4 2fi See 

Discovered with the 12-inch. In Gould 6.4 m. 

[/S (xvi).../3 (2956)... /3 {Pttb.L. O. ii)...Aitken (3465)... 
See (3496)...] 



P 238. Lalande 26529 



R.A. 14'' 27"' i^ 
Decl. — 20' 30' 



1877.39 9°-3 6.96 8. 2... 10. 2 211 Cin 

1893.42 91. 1 6.94 8. 4... 10. 5 2n W 

1893.47 90.6 6.94 ... \n Lv 

Discovered with the 6-inch. Unchanged. 
(/3 (v)...(3 {Mon. Not. xxxv, 31) .. .Cin^ .. Lv. . .Wilson 
( )...] 



p 616. Y Bootis 



R.A. 14'' 27™ 15= 
Decl. +38- 50' 



1878.25 98.6 26.18 2. 8... 12. 5 2>i /3 

1891.24 103.6 28.23 ...13.8 yi (3 

1898.27 105.5 29.38 ...13.0 2n (3 

1898.28 102.2 29.37 ... i« D 

The faint companion was detected with the i8}4- 
inch. AuwERS gives the proper motion of y Bootis 
ori98 in the direction of 320:5. This movement 
and the position of the companion given by the 
measures of 1878 give for the date of the measures 
in 1898, io3?8 : 29 ['33. It is therefore evident that 
this is only an optical companion. The minimum 
distance of 19 '5 occurred in about 1780. 

[/3(x)...^'...(3 ( 7,1 14) -.-P [Pub. L. O. II)... Doolittle {Pub. 
Flower Obsy. i ) . . . ] 



P 941- Lalande 26605 

R.A. 14'' 29™ 40= \ 
Decl. + 0= 46' f 



1879.28 218.3 
1888.31 40.2 



1888.80 
1893.40 
1893.96 
1897.41 



222.1 
216.8 

215-5 
22^.0 



0.80 
0.80 
o.6± 
0.83 

o.7± 
o-5± 



8.2 
8.4 

8.7 



8.2 
8-5 



\n 

2)1 

y 

2)1 

in 



a 

Lv 

Sp 

w 

Sp 
Sp 



Discovered with the 18^ -inch, 
chanared. 



Evidently un- 
[/3(xill)...i33...Lv'...Sp (in)... Wilson ( )...] 



P 804. \V XIV. 558 
- 8= 9' i 



R..\. i.''^ -"■" ^'>= 
Decl. 



1S81.46 166.2 1.40 S.I... 10. 7 2ti /3 

1888.74 159.5 1-39 8.5... 10. 8 2fi Com 

1891.26 160.9 1.29 8. 4... II. 5 3// yS 

1898.39 161. 6 1.37 7.8... 9.7 3// D 

Discovered with the i5V2-inch at the \Va.<iiburn 
Observatory. No sensible change. 

[/3 (xii). . ./3^ . .^ (3114). . ./3 (Pub. L. O. II). . .Comstock (Pub. 
Waihburn Obsy. vi) . . . Doolittle (Pub. Flower Obsy. i) . . . ] 



General Catalogue of Double Stars 



P 226. Lalande 26665 



R.A. 1 4'' 32™ 5=^ 
Decl. — 21° 49' 



1876.09 
187S.37 
1879.44 
1880.34 

1884.35 
1890.46 



81.6 
80.4 
82.7 
83.1 
84.7 
87.6 



Discovered with the 6-inch 
advance in the angle. 

[(3 (iv). . ./3 {Mo7t. Not. XXXIV, 382) 
Cin5 . . . Cin« . . . Wilson (Cin'°) . 



0.80 
1.05 
0-95 
0-99 
1. 01 
o.9± 



5... 7.5 3« Sp 

7 . . . 8.2 271 Cin 

8... 8.0 \n /3 

o. . . 8.0 \)i Cin 

5... 8.7 2« W 

7 ... 8.0 4« Gl 

There may be a slow 

..i33...Sp (11)... Cin".. . 
.Glasenapp (i). . . ] 



P 805. O. Arg. S. 13799 

R.A. I4h 32™ 58= 
Decl. — 26° 37' 



A and B 



1881.41 135.4 24.12 
1888.93 133-8 23.46 
1899.29 133.8 23.47 



7.2 .. . 13.0 2)1 /3 

7.0 ... 1 1.5 2« Com 

... 2« /8 



1881.44 239.7 
1888.93 243.1 



C and D 

;/ 

1.99 9. 2.. .11. 7 3« 
1.99 9.0. . . 1 1.2 i« 

A and C 



Com 



1081.42 42.0 123.96 
1888.41 42.0 123.45 
1899.29 41.4 124.38 



3« ^ 
I n Com 
2« /3 



Discovered with the 15^4 -inch at the Washburn 
Observatory. 

[/3 (xil). . .(34. . .Comstock (Fui. Washbtirn Obsy. vi). . .] 

P 806. O. Arg. S. 13813 







R.A. 14'' 33" 27S 


i 












Decl. — 25° 44' 












A and B 










1890.39 


96.3 


0.67 7.3. 




9-3 


3« 


/3 


1899.45 


97-1 


0.69 7.2. 
C and D 




9.8 


3« 


A 


1881.44 


347-8 


1.22 8.5. 


. . 


9.6 


in 


^ 


1890.39 


344-9 


1.20 8.3. 




9.2 


3« 


^ 


1899.41 


341.6 


I. 21 8.5. 




10.2 


3« 


A 







A and C 








1881.42 




67.4 


;/ 
71-50 




.. 


yi 


? 


1890.39 


67-3 


71.48 






yi 


/? 


1899.32 


66.7 


71-75 






m 


i8 


1899.38 


67.2 


71.97 






in 


A 






A and a 













II 










1890.38 


329.6 


17.78 


. 


•-I3-5 


2n 


/8 


1899.34 


327.2 


16.91 




■-I4-5 


yi 


A 



The duplicity of the smaller member of the wide 
pair was discovered with the 151^ -inch at the Wash- 
burn Observatory ; and in measuring that with the 
36-inch the other star was found to be a still closer 
pair, thus forming an apparently interesting quad- 
ruple group. 

[|3(xu). . ./34. . ./3(3048). . .^{Pub.L. 0. 11). . .Aitken ( ). . .] 





p 


345« Lacaille 605 


I 










R.A. 14^ 
Decl. — 


34" 40^ I 
29° II' ) 








1875.41 


33o± 


// 
i± 


7.0.. . 


7.0 


i« 


13 


1877.41 


128.2 


0.94 


7.0.. . 


7-3 


in 


Cin 


1880.42 


299.4 


0.90 


7.8... 


8-5 


m 


Cin 


1892.37 


303-5 


0.94 


7-5--- 


8.2 


3« 


/8 


1897.45 


301.9 


0.98 


7+... 


8 


3" 


A 


1897.50 


303-7 


0.92 


7.2. .. 


8.1 


2« 


See 



Discovered with the 6-inch. Change is doubtful. 

[(3 (vi).../3 (2062,3142)... /3 [Piib.L. O. ll)...Cin''...Cin^.. 
Aitken (3465)... See (3496)...] 





p 


414. Centatiri 3 1 5 










R.A. H^ 


34" 42^^ / 
30° 25' \ 










Decl. — 






1889.43 


345-6 


1. 01 


6.5... 7.9 


yi 


^ 


1896.49 


346.5 


0.90 


6.7. . . 8.0 


4// 


A 


1897.39 


342.5 


0.86 


6.0. . . 8.2 


m 


See 


1897.45 


344-9 


0.89 


6+... 8 


3« 


A 



Discovered with the 6-inch. So far without 
change. In Gould 6.6 m. Lacaille 6052. 

[;3 (vii). . .j3 (2103,2957). . .§ [Pub. L. O. 11). . .Glasenapp (1) 
. . . Aitken (3395.346s) • • • See (3496) . . . ] 



Discovered from i8yi to i8gg by S. W. Burnham 



^Zl 







P807. 


Schj. 5216 










R.A. 14' 
Decl. — 


36"' 37= / 
6° 18' \ 






I88I.4I 
1888.46 
1888.46 


239.0 

241.0 

237.2 


1.24 

1. 15 
1. 19 


8.0. . . 9.1 
8.0 . . . 9.0 
8.5. •■ 9-7 


3« 
yi 


Lv 

Com 



Discovered with the 15^ -inch at the Washburn 
Observatory. 

[/3(xn). . .j3<. . .Lv^ . . Comstock (/'z/^. Washburn Obsy.vi). . .] 
P III3- B.A.C. 4886 



R.A. 14'' 41™ 21^ 
Decl. + 2° 32' 



1889.40 137.1 4.54 6. 2... II. 8 3« j8 

1898.39 136.0 4.37 7.0... 12.0 2;/ 13 

1898.40 136.4 4.14 6.0... 12.0 3« A 

Discovered with the 36-inch. The magnitude 
in D.M. is 7.7. 
[i3(xvi).../3(2956).../3(/'?/^. Z. O. ii)...Aitken ( )...] 



p 346. Librae 23 







R.A. 14^ 


41" 50^ } 
16° 50' \ 












Decl. -- 








1877.41 




236.2 


1.23 


7.2.. 


7-9 


2tl 


Cin 


1877.44 


236.1 


1.27 


7.2.. 


8.0 


2« 


J 


1879.34 


233.2 


1.27 


7.0.. 


8.0 


Itl 


Cin 


1890.98 


239.2 


1. 18 


7.0.. 


8.0 


2« 


Sp 


1888.35 


233-4 


1.27 


7.0. . 


8.0 


in 


T 



A and B (= H- VI. 117 = S 663) 



Discovered with the 6-inch. No material change. 
Lalande 26940. 



[^ (Vl)...;8 (2062)... zl (I). 
rant (2991). . .] 



.Cin'»...CinS...Sp (11) . . .Tar- 





p 


DI7' Lalande 26952 










R.A. 14" 


42" 23^ ) 
23° 45' \ 










Decl. — 










B and C 






1878.34 


336°6 


2.73 


8.5. ..".5 


2;/ 


^ 


1880.38 


337.2 


2.14 


8.8.. .11.5 


2« 


Cin 


1897.50 


335-3 


2-57 


8 . . .11.2 


i;z 


See 


1898.39 


334.5 


2.52 


8.3. ..II. 2 


in 


A 



1825.35 219. 1 
1878.34 219.5 

1898.39 219.8 



56.69 
59.44 

60.44 



7.5- -• 

6-5--- 
6.2.. . 



2>! 


s 


2)1 


/? 


yi 


A 



The smaller star of Herschel's wide pair was 
found to be double with the 18^-inch. The 
measures show no change in the last twenty years. 
All the measures of AB are given above. There 
would seem to be an increase in the distance, im- 
plying a proper motion of about 0^05 in a direc- 
tion nearly opposite B. There is an error of 16' 
in the declination of this star in H'. 
[/3 (X). . ./S'. . .Cin«. . .See (3496). . .Aitken ( ). . .] 



1878.32 
1SS9.3S 
1S9S.51 



P 106. |x Librae 

R.A. 14'' 42"" 45^ 
Decl. — 13° 39' 

A and B 



1874.29 


345-0 


/ 


54 






m 


ws 


1875.60 


335-0 




38 


5-4- 


. 6.3 


5" 


J 


1876.99 


335-1 




53 


5-5- 


. 6.2 


7« 


Sp 


1877.40 


334-7 




69 


5-0. 


.. 7.0 


2;/ 


Cin 


1878.32 


333-2 




50 


5-5- 


. 6.3 


m 


/8 


1879-35 


335-0 




02 


5-5- 


. 7.0 


211 


Cin 


1883.43 


337-4 




51 


5-4- 


. 6.6 


6u 


En 


1885.28 


337-0 




56 


5-0. 


. 7.0 


m 


\N 


1886.39 


337-2 




52 


5-0. 


. 6.3 


4n 


T 


1888.35 


339-2 




63 


6.0. 


• 7.2 


3" 


Lv 


1889.38 


340.6 




61 


5 - 


. 6 


3" 


^ 


1889.46 


339-6 




84 


5-5- 


- 6.5 


4" 


T 


1890.41 


339-0 




01 


6.0. 


. 8.0 


211 


Gl 


1897.29 


343-5 




84 


5-4- 


.. 6.3 


2)1 


D 


1897.41 


340.2 




57 


5+- 


. 6 


3» 


A 


1898.42 


344-8 




58 


5^- 


. 6>4 


2)1 . 


So 


1898.55 


339-6 




59 


5-5- 


. 6.0 


3" 


A 






A and C 






1889. 38 


283°? 


is''33 


...14.5 


2)1 


^ 


1898.52 


281.6 


17-98 
A ar 


...15.0 
id D 


2)1 


A 


1889.38 


i85°5 


25.96 


-. .13.9 


3" 


/3 


1898.52 


184.8 


26 


20 




.14.0 


2)1 


A 



A and E 



229.2 27.35 
232.5 27.19 
232.8 27.46 



. . 12.5 \)i /3 
. . 1 2.8 3« fi 
. . 13.5 2« A 



General Catalogtie of Double Stars 



The close pair was discovered with the 6 -inch, 
the distant star E with the i8 J^-mch, and the faint 
companions, C and D, added with the 36-inch. 
The large star has a proper motion of o.'ogy in the 
direction of 260? 6 (Auwers), and it is obvious 
that this belongs to both components. It is proba- 
ble that the distant companions are not attached 
to the binary. 

l^\\\)...^{Mon.Not.yj\.y.\n,\-in)...^\. ./3 (2957). . ./3 (Pub. 
L. O. 11). . .Wilson and Seabroke {Mem. R. A. S. XLill) 
...A {!)... A (2081)... Sp (u)...Cin''...Cin5...Engel- 
mann (2678). . .Wilson (Cin'°). . .Tarrant (2866,3186). . . 
Lv'. . .Lv (Sid. Mess, vill, 77). . .Glasenapp (l) . . .Doo- 
little (Pub. Flower Obsy. l). . .Aitken (3465). . .Scott {Mon. 
Not. Lix, 427). . .Aitken ( ). . .] 



P 31- Lalande 27106 



R.A. 14*^ 46" 59= 
Decl. + 19' 13' 

A and B 



1874.94 
1878.24 
1879.43 
1883.71 
1890.35 
1893.26 
1893.46 
1896.46 
1896.91 
1897.44 
1898.45 



187 
188 

193 
190 
192 
196 
192 
194 

193 
196 



•5 




.8 




•4 




.2 




•3 




•7 




•3 




.1 




\-l 




,•7 




).2 





8.5 
8.5 

8.0 
8.4 



1878.25 161. 4 

1890.35 162.7 

1896.37 167.3 

1898.46 166.0 



29 

40 

51 
40 

35 
87 
57 
48 
52 
45 

A and C 



9.04 

9-03 
9.76 

9-05 



0.2 


2)1 


J 




in 


/3 


9.8 


\>i 


/8 


0.2 


5« 


En 


9'7 


3« 


y8 




5« 


Sp 




4« 


Lew 




4;/ 


A 




A" 


Lew 




111 


Bow 




m 


Lew 



12.5 in /3 

12.2 ^n y8 

2« Lew 

m Lew 



The close pair was discovered with the 6-inch, 
and C subsequently added with the 18 J^ -inch. 
The Berlin A. G. Catalogue gives the principal star 
a proper motion of o ^230 in the direction of 347^9 
(Porter o ^'223 in 343?o). The measures show con- 
clusively that the movement is common to the three 
components, and there can be no doubt that they 
constitute a physical system. There is slow direct 
angular motion in the close pair, and, perhaps, some 



change in the direction of C. This triple is about 
31' sf ^ Bootis. 

[(3 (l). . .;3 (Mon. Not. xxxiil, 351). . ./3'. . ./33. . .^ (3048). . ./3 
{Pub. L.O.\l)...A(\)... Engelmann (2678) . . . Sp (in) . . . 
Lewis (Mon. Not. Liv, 317; lix, 400) . . .Aitken (3395). . .] 



P 118. O. Arg. S. 14034 



1875.90 307.4 

1879.87 306.1 

1886.30 308.6 

1888.35 306.4 

Discovered with the 6-inch. Without change. 
It is 23^"/ and 2?>' s oi a Librae. 

[i3 (in). . .j3 (Mon. Not. xxxiv, 59). . .A (i) . . .CinS. . .Cin«. . . 
LM . . .Tarrant (2991). . . ] 



R.A. \!^ 


47" i^ 


\ 






Decl. — 


16° I' 


s 






1.83 


9.8. 


. .10.7 


2n 


J 


1.86 


8.5- 


. . 10. 


2n 


Cin 


1-95 


8.0. 


.. 9.0 


m 


LM 


1-59 


10. 0. 


..10.5 


2n 


T 



P 347' Centmiri 330 



R..\. 14^ 47" i^ 
Decl. — 32° 49' 



1890.43 319-9 
1897.39 318. 1 



A and B 

13.01 6.5. ..10.5 yi P 
13.47 6.0. . . 10.2 m Gl 
12.94 6-(- ... 10 2« A 

A and C 



1889.45 
1890.43 



243-1 
243-1 



58.46 
58.34 



1897.39 242.8 58.04 



9.8 yi 13 
9.2 2« Gl 
10 2« A 



Discovered with the 6-inch. B.A.C. 4912. The 
measures of C indicate a small proper motion. 

[/3 (VI)... /3 (2062)... (3 (2957)... i3 (Pub. L. O. 11)... Glase- 
napp (l) {A.J. 241). . .Aitken (3465).. .] 



P 942 







R.A. 14'' 


47 


-29' 


} 












Decl. + 





" 2 ' 


\ 








1879.44 




189.9 


1.24 




9.2. 




9.2 


2« 


? 


1892.30 


191. 2 


1.26 




9.2. 




9-3 


yi 


/8 


1892.38 


189.8 


1.02 




9.1. 




9.2 


4« 


Lv 


1897.44 


200.1 


0.94 










\n 


Lew 



Discovered from iSji to i8gg by S. W. Burnham 



139 



Discovered with the iSj^-inch. Not in the D.M. 
It is 187" from the wide pair, 02 (app.) 131, in 
the direction of 221:' 5. This wide pair is 

2io?5 : 89:69 : 6.5. . .7.2 (1873.44) 2/1 J 

[/3(xin)...i33.../3(3i42).../3 (Pub.L. O. 11)... Lv (././. 278) 
{Proc. Haverford Coll. Obsy. 1892). . .Lewis {Mon. Not. 
Lix, 400). . .] 



P 239. 59 Hydrae 









R.A. 14" 


51,0333 


\ 










Decl. — 


27° 10' s 






1874.50 


303-7 


// 
o.8± 


6.0. 


. 6.0 


5« 


IS 


1878.36 


309 


5 


0-93 


6.0. 


. 6.0 


\n 


fS 


1878.96 


312 


6 


0.77 


6.0. 


. 6.0 


2H 


Sp 


1879.40 


310 


I 


0.89 






211 


Cin 


1879.92 


311 


8 


0.83 


6.0. 


. 6.2 


2n 


IS 


1880.38 


307 


4 


0.90 


6.2. 


. 6.7 


4« 


Cin 


1881.40 


312 





1.07 


6.0. 


. 6.0 


4;/ 


i8 


1884.39 


313 


8 


1.20 


7.0. 


• 7-5 


\>i 


W 


1888.43 


308 


3 


0.96 


6.0. 


. 6.0 


m 


Lv 


1889.44 


311 


4 


0.86 


5-8. 


• 5-9 


3" 


^ 


1897.51 


315 


8 


0.92 


6.8. 


■ 7-9 


2;/ 


See 


1898.28 


316 


5 


0.99 


5-5- 


. 6.0 


i" 


A 



Discovered with the 6-inch. The angle is prob- 
ably increasing, but the motion is very slow. The 
distance seems to have remained practically con- 
stant. AuwERS gives the proper motion of this 
star, o ['085 in the direction of 234?8. It is evi- 
dent from the measures that this movement is 
common to the components, and that they must 
form a physical system. If one component was 
fixed in space, the relation in 1898 should be 
31-5: 1-89- 

[/3 {v). ..^{Mon. Not. xxxv, 31). . .(3" . . ./33. . ./S-t. . .(3(2957) 
. . ./3 {Pub. L. O. II). . .Sp (11). . .CinS. . .Cin«. . .Wilsun 
(Cin'°). . .Lv". . .Lv [Sid. Mess, vill, 77). . .See (3496). . . 
Aitken ( )...] 



P 808. S.D. (8) 3872 







R.A. 14'- 51'" 53^ ; 












Decl. — 8" 13' \ 












A and B 








1881.44 




201.5 


0.63 9.0.. 


. 9.0 


2// 


/8 


1893.49 


200.6 


0.64 9.0. . 


. 9.0 


\)i 


W 







AB and C 








1881.41 


305-1 


94.60 




. 8.9 


2« 


P 


1888.51 


305-6 


93.86 


8.7.. 


. 8.4 


V 


Com 


1893.40 


305-6 


93.21 


9.0. . 


- 8.5 


yi 


W 


1899.26 


305-7 


93-47 


9.0.. 


. 9.2 


3« 


P 



Discovered with the 15 3^ -inch at the Washburn 
Observatory. C is S.D. (8°) 3871. The measures 
indicate a proper motion of one of the wide stars 
of 0^06, nearly in the direction of the other. This 
is confirmed by the meridian positions in S.D., 
which give a distance of loi" for 1855. 

[/3 (xil). . .(3-t. . .Comstock {Pub. Washburn Observatory Vl). . . 
Wilson ( ) . . . ] 





p 108 


5- Piazzi XIV 


229 










R 


A. 14'' 52'" 375 ) 












D 


eel. — 4° 30' ) 








1889.30 




19-5 




li 

9-34 6.0.. 


.13.2 


V 


/3 


1898.31 


21.0 




9.44 6.0.. 


•13-5 


211 


A 


1899.27 


20.7 




9.30 6.5.. 


.13.1 


in 


/? 



Discovered with the 36-inch. This star has a 
proper motion, according to Porter, of o!'4i3 in 
the direction of 254? 7. The short interval covered 
by the measures is sufficient to show that the new 
star is moving with the other. If fixed in space, 
the position of the companion at the date of the 
second measures would be 34?4 : 1 1 .'87. This is a 
naked -eye star in Libra. 

[;3 (xv).../3(2929).../3 {Pub. L. O. 11)... Aitken ( )...] 



P 348. 2 Scrpentis 







R.A. 14'' 


55 


"• 40^ { 












Decl. + 





' 20' \ 








^^1%-ls 




1 14.6 


0.47 




5.1 . . 


• 7-4 


4'' 


J 


1876.44 


118. 3 


0.67 




6.0. . 


. 6.8 


2)1 


02 


1876.50 


1 19.0 


0.52 




5.0. . 


• 7-5 


Alt 


Sp 


1877-51 


123-3 


0.42 








2U 


Sp 


1878.36 


121. 4 


0.51 








\n 


/3 


1879.92 


114-5 


0.47 




6.0.. 


■ 7--' 


2n 


^ 


I88I.4I 


119. 7 


0.45 




6.0.. 


. 7-8 


3" 


^ 


1884.40 


1 19.2 






7.0.. 


. 8.0 


2tl 


W 


1885.53 


119.7 


0.50 








2n 


112 


1887.45 


118.3 


0.4S 




5.0.. 


- 7-5 


3" 


r 



140 



General Catalogzie of Double Stars 



0.44 






yi 


HI 


0.53 






v 


Sp 


0.52 


5.0.. 


. 8.0 


i'i 


T 


0.76 


6.0. . 


. 6.7 


211 


/3 


0.70 


6 . . 


-7 
- / 




A 

u 



1887.57 120.7 

1887.60 116. 7 

1888.53 120.0 

1889.31 119. o 

1897.49 III. 7 



Discovered with the 6-inch. There has been but 
little change in either angle or distance. Auwers 
gives this star a proper motion of o f 010 in the direc- 
tion of 1 88? 5. The annual change is very small, 
and, perhaps, somewhat uncertain. If substantially 
correct, and it belongs to the larger star only, it 
would produce a diminution in the position-angle 
of 27" in the interval between the measures of 
1875 and 1897, the distance remaining practically 
unchanged. There can be no doubt of the 
physical relation of these stars, but the period 
will certainly be long. There is a 13.5 m star, 
215:9 : 32!'86 (1899.26) \n. 

One of Herschel's wide pairs, H' VL 51, is 
erroneously called 2 Serpentis. It is i Serpentis, a 
4 m star 4" 17^/ and 7 7 " J. 

[/S (vi)...i3 (2062,2930)... ^^../33...(3«...i3 [Pub. L.O.W) 
. ..A (l). . .i] (2086). ..OS (Poulkowa Oisns.x).. .Sp (ll) 
. . .Wilson (Cm^°). . . Hall (l, 11) . . .Tarrant {2899,2991) 
...Aitken(3465)...H2 ( )...] 



P 1086. 47 Bootis 







P 


119. 


Lalande 2 


7454 










R.A. 14^ 


59" 10=^ ) 










Decl. — 


6°.33' \ 






1875.90 



313-0 


1-51 


8.C. 


- 8.5 


4« 


A 


1878 


60 


311. 1 


1. 41 


8.0. 


. 9.0 


VT- 


Cin 


1887 


45 


309.1 




56 


8.0. 


. 8.5 


VI 


T 


1888 


33 


307.6 




59 


8.0. 


- 8.5 


A>i 


T 


1888 


45 


306.4 




61 


7.9. 


. 8.4 


2n 


Lv 


1890 


39 


304-9 




78 


8.1. 


. 8.6 


2n 


Gl 


1892 


35 


307-1 




47 


8.0. 


- 8.5 


yi 


Lv 


1894 


48 


304-4 




61 






2n 


Sp 


1897 


92 


304.6 




69 


8.0. 


. 8.7 


7« 


D 


1897 


95 


305-2 




48 


. 




2n 


Sp 



Discovered with the 6-inch. The measures indi- 
cate some motion in angle. 

[/3 (iii)...;3 {Mon.Not. xxxiv, 59). ..A (i). . .CinS. . .Lv'. . . 
Lv (Sid. Mess, viu, 77). . .Tarrant (2899,2991) .. .Glase- 
napp (l)...Lv [A./. 278) [Proc. Haverford Coll. Obsy. 
1892). . .Doolittle {Pub. Flower Obsy. i). . .Sp (ill). . .1 





R.A. I5>- I" 27= ) 










Decl. +48= 37' \ 








889.21 


// 
256.6 6.03 5.5. 


.13.2 


3« 


P 


898.49 


254.1 6.31 




V 


/3 



Discovered with the 36-inch. It is practically 
certain from the measures already made that this is 
a physical system. The bright star has a proper 
motion of 0^080 in the direction 277:2. If the 
small star was fixed, this movement with the posi- 
tion of the companion in 1889 would give 253:8 : 
5^33 for 1898. It is obvious from the measures 
that there has been no such change in the distance. 

[iS (XV). . .p (2929). . .(3 [Pub. L. O. II). . .] 





p 


349- Lalande 27579 










R.A. 15'' 


2m 52= ) 
2= 9' \ 










Decl. + 






1876.43 




39-3 


4.17 


7.0. . . 10. 


i« 


02 


1876.51 


39-6 


4.06 


7.5. ..II. 8 


i« 


J 


1876.51 


36-7 


3-96 


8 ...12 


3« 


HI 


1884.42 


40.9 


.3-83 




V^ 


HI 


1886.44 


36-3 


4.04 




\n 


H2 


1892.39 


36.2 


3-80 


8.0. .. 1 1.9 


211 


Lv 


1899.27 


39-2 


3.62 


8.0 . . . 10. 


m 


/3 



Discovered with the 6-inch. 

[iS (vi).../3 (2062)... J (l)...Hall (l, II)... OS {Poulkowa 
Obsns. x) . . . HS ( ) . . . Lv {^. /. 278) {Proc. Haverford 
Coll. Obsy. 1892)...] 



P 809. S.D. (22°) 3908 



1881.36 120. 1 

1888.51 123.5 

1892.40 119. 2 
1898.47 122.5 

Discovered with the 15^-inch at the Washburn 
Observatory. No material change. The magni- 
tude in S.D. is 8.3. 

[jS (xil). . .(31. . .Comstock {Pub. Washburn Obsy. vi)...Lv 
{A.J. 278) {Proc. Haverford Coll. Obsy. 1892). . .Doolittle 
{Pub. Flower Obsy. l). . . ] 



•A. 15^ 


3- 3= 








eel. — 


22° 16' 








1.47 


8.0.. 


• 9-3 


4n 


/? 


1-75 


8.2.. 


. 10. 


Vi 


Com 


1.64 


8.1. . 


. 10. 1 


2H 


Lv 


1.68 


8.0. . 


. 9-8 


2fl 


D 



Discovered from 18'] i to i8gg by S. W. Burnham 



141 



P 618. 24 (i') Librae 







R.A. is" 


5m 23S 


\ 










Decl. — 


IQ° 20' 


\ 










B and C 













// 










1878.34 


24-3 


1.86 


10 . 


. . 10 


in 


/? 


1879.96 


23-4 


1.74 


10. 0. 


..10.7 


2« 


/8 


1885.33 


19.8 


1.40 


10.5. 


. . II.2 


\1l 


W 


1896.46 


19. 1 


1.68 


10 


. . 10 


5« 


A 


1899.30 


17.4 


1.70 






211 


/? 



A and B (= H ■ VI. 44 = Sh 376) 



1782.39 


1 12.5 


59-07 




i« 


H' 


1822.84 


II 1.6 


66.50 


6 . ..II 


\n 


Sh 


1878.33 


no. 5 


57-46 




3« 


/8 


1879.96 


no. 8 


57.26 




2« 


^ 


1885.33 


no. 3 


57-78 


4-5- •■ 


211 


W 


1896.44 


II 1. 


58-23 




2« 


A 


1899.30 


I I I.O 


57-48 




211 


^ 



The duplicity of the Herschel companion was 
discovered with the i8j/^-inch. There may be a 
slow diminution in the angle. 

All the measures of the wide pair are given 
above. According to Auwers the principal star has 
a proper motion of o!'o67 in the direction of 23i?3. 
This does not fully explain the change in-B. The 
distance in the early measures would represent not 
B, but BC. The distance in Sh is printed 50^63, 
but Sadler has shown {Eiig. Mech. xxxviii, 65) 
that the micrometer readings were wrongly reduced, 
and that the distance should be 66 ['50. The prin- 
cipal star was found to be variable by the Harvard 
observers. 

\P (x). . .;3'. . .(33. . .Wilson {Cin'°). . . Aitken (3395). . .] 



P 350. B.A.C. 5020 



R.A. is'- 8" 
Decl. — 27° 



1876 
1879 
1883 
1886 
1892 
1897 
1898 

Di 
tain. 



52 
46 
.40 
49 
41 
48 

49 



163.2 
158.1 
160.3 

157-7 
160.2 

154-1 
155-9 



31 

15 
34 
28 

15 
95 
24 



29^ 
9' 

'-5 
. o 

5 

2 
, I 



6'/ 



scovered with the 6-inch. 
In Gould 6.9 m. 



8.0 211 HI 

8.0 211 Cin 

8.2 2n W 

in HI 

8.4 211 Lv 

8.5 \n See 
8 yi Sc 

Chan<i-e is uncer- 



[/3 (VI)... /3 (2062)... Cin5...Cin'5... Wilson (Cin'°) . . . Hall 
(i, 11). . .Glasenapp (l). . . Lv (^.7.278) [Proc. Haverford 
Coll. Obsy. 1892).... See (3496). . .Scott (Mon. Not. Lix, 
427)- •■ ] 

P 351- O. Arg. .S. 1 44 1 7 



R.A. 15'' 10"™ 20= 
Decl. — 15' 8' 







A and B 








1876.56 


303-3 


10.36 


9-5- 


. 12 


in 


HI 


1884.46 


302.9 


10.91 


9-5- 


. 12 


VI 


HI 


1896.49 


302.0 


10.75 


8.5- 


. 12 


211 


Lv 


1899.27 


303-3 


10.53 


8.1. . 


.10.7 


y 


/3 



A and C 

O II 

1899.26 235.0 33.36 ...12.0 m (i 

Discovered with the 6-inch. Apparently fixed. 
[/3 (VI)... (3 (2062)... Hall (I, II)... Lv {A.J. 407)...] 

P 352- O. Arg. S. 14427 







R.A. is" 


10 


"> 42= 


I 












Decl. — 


26 


° 33' 


\ 













// 














1879.40 


66.9 


14.10 




7-7- 




9-7 


2« 


Cin 


1880.36 


65.1 


14.37 




7.8. 




9-0 


3" 


Cin 


1890.42 


68.1 


13-17 




8.2. 




9.6 


211 


Gl 


1892.41 


68.3 


13-95 




8.1. 


. . 


9.2 


211 


Lv 



Discovered with the 6-inch. Apparently fixed. 

[i3 (VI)... /3 (2062)... Cin5...Cin«... Glasenapp (l)...Lv [A. 
J. 278) {Proc. Haverford Coll. Obsy. 1892). . .] 



P 227. B.A.C. 5039 

R.A. is" 12"' 7= ^ 
Decl. — 23° 50' \ 



1S74.40 
1876.47 
1878.44 
1880.42 
1886.30 
1890.40 
1896.44 
1898.05 



I 84. 1 
180.9 
179.2 
180.2 

177-5 
179.7 
176.8 
177.8 



i.7± 

1.98 

1.96 

1.90 

2.28 

2.31 

1.89 

1.97 



7.0 
7-0 

7-5 
7.0 
8 
7-7 



10.5 
9.0 
9.0 
9-5 
9 
8.6 

8.4 



\ii 
211 
111 
I// 

211 
211 

Sn 



/8 

Cin 

Cin 

Cin 

LM 

Gl 

Sc 

D 



Discovered with the 6-iiuli. No certain change. 
In the field with (i 228. 



u- 



General Catalogue of Double Stars 



f/3 (iv). . .^ {Man. Not. xxxiv, 382). . .CinS. . .CinS. . .Cin«. . . 
LM. . .Glasenapp (l)... Scott {Brit. Ast. Assn. vill, 66) 
. . .Doolittle (Pub. Flower Obsy. l) . . .] 



P 943- Lalande 27885 







R 


A. 15" 


12 


■" 16= ) 












Decl. + 


I 


'23' \ 








1879.70 




92-5 




2.30 




6.6.. 


. 12.2 


4;/ 


/8 


1889.30 


92.7 




2.63 




6.2. . 


.12.3 


V 


/3 


1899.27 


94.1 




3.01 




6.7.. 


.10.5 


\)i 


|8 



1. 16 


7-5- - 


■ 7-9 


2tl 


Cin 


1. 14 


9.0. . 


• 9-3 


\n 


W 


. . . 


7 - • 


. 8 


i>i 


LM 


0.98 


7.2. . 


. 8.1 


211 


Lv 


1.02 


8.1. . 


. 8.7 


211 


D 



Discovered with the 18^-inch. Near 6 Serpentis. 

[i3 (xni)...^...;Q(2930)...;8(/'«,!;. Z. O. II)...] 

P 228. B.A.C. 5041 

R.A. IS*- I2"> 38^ \ 
Decl. — 23° 50' \ 



1876.95 329.6 

1884.41 329.4 

1886.30 328.4 

1892.40 327.6 

1898.48 321.3 



Discovered with the 6-inch in looking for H 
4756, which is given by Herschel (Cape Observa- 
tions), i8o°d= : 2'^" : 9. . .914, with the note, "re- 
quires verification." His place is substantially the 
same as that given here, but the magnitude is very 
different from that of B.A.C. 5041, which is at least 
7j^, and his estimated angle and distance do not 
correspond with the star measured. The measures 
of the new pair do not so far show any material 
change. ;8 227 is in the field/. 

[/3 (iv). . ./3 (Mon. Not. XXXIV, 382). . .Cin3. . .CinV . .Wilson 
(Cin"°)...LM...Lv [A. J. 278) {Proc. Haverford Coll. 
Obsy. 1892). . .Doolittle [Pub. Flower Obsy. l). . .] 





p 


353- RedhiU 2307 










R.A. 15" 13"' 55= \ 
Decl. +85° 57' \ 






1881.48 




297.0 


3.60 9-3- - ■ 9-4 


3« 


/? 


1892.42 


295-5 


3.62 9-4- - - 9-8 


111 


Lv 


1892.42 


295-7 


3.74 9.5...10.0 


\n 


Col 



Discovered with the 6-inch. One of a wide pair. 



[(3 (vi)...j3 (2o62)...i34...Lv and Collins {A.J. 278) {Proc. 
Haverford Coll. Obsy. 1892). . .] 



P 32. 6 Serpentis 







R.A. 15" 


14"' 55= 












Decl. + 


1° 9°S 






1875.40 




14.8 


3-II 


4-5- 


. 10 


m 


HI 


1875-43 


13.2 


2.28 


4-7- 


- 9-3 


All 


J 


1876.43 


9-3 


2.81 


6.0. 


- 9-5 


\v 


02 


1879.40 


13.6 


2-37 


5-7- 


. 10.9 


211 


|8 


1885.49 


14.1 


2.27 


4-7- 


. 9.6 


yi 


T 


1886.44 


12.7 








\n 


H2 


1887.34 


15-6 


2-39 


5-0. 


• 9-5 


2)1 


T 


1888.44 


13.8 


2.78 


4-5- 


• 9-5 


in 


Lv 


1888.52 


16.2 


2.68 


4-5- 


■ 9-5 


271 


T 


1889.30 


17.9 


2-44 


5-8. 


. 10. 


3« 


^ 


1897.48 


11.6 


2.38 


6.0. 


. 10. 


3« 


A 


1898.20 


14-5 


2.63 




. 10 


yi 


D 



Discovered with the 6-inch. Relative change is 
not entirely certain, but it is a physical system, as 
the components have a common proper motion. 
The principal star has an annual movement of 
o!i26 in the direction of 2i9?o (Auwers). If the 
small star was fixed in space, the position-angle 
should increase 12° and the distance 2^5 in the 
interval covered by the measures. 

[/3 (i). . .(3 {Mon. A^o/. XXXIII, 351). . .(33. . .(3 (2930). . ./3 {Pub. 
L. 0.1\):..A {\)...A (2081)... Hall (l). . .Tarrant (2866, 
2899,2991). ..OS {Poulkowa Obsns. x) . . . Lv' . . . Aitken 
(3465) . . . Doolittle {Pub. Flower Obsy. l) . . . HS ( ) . . . ] 

P III4. B.A.C. 5090 







R.A. is^ 


21™ 42= ) 
28° 27' \ 










Decl. — 










A and B 






1889.38 


325-7 


0.65 


7.0. . . 7.3 


yj 


^ 


1897.41 


323-1 


0.81 


7 •-- 7 + 


yi 


A 


1897.48 


319.2 


0.60 


6.9. .. 8 


Ml 


See 




AB and C 


:= H 4774) 






1834.30 




8.5 


io±: 


7 ...10 


111 


H^ 


1877.41 


7-5 


8-95 


7.0. . . 10. 


11/ 


Cin 


1880.39 


6.5 


9.17 


6.8 . . . 10. 


111 


Cin 


1889.38 


5-8 


9.21 


7.0. .. 9.8 


y> 


13 


1890.43 


2-3 


9.71 


7.2 . . . 10. 


in 


Gl 


1897.39 


5-4 


8.90 


. . . 10. 


2n 


A 


1897.48 


4.2 


9-25 


...10.5 


-ill 


See 



Discovered from iSji to i8gg by S. W. Burnham 



143 



The close pair was discovered with the 36-inch. 
So far there is no sensible change. 

The above are all the measures of the Herschel 
companion, which seems to be fixed. The magni- 
tude of A in Gould is 6.8. 

[^(xvi). . .j3(2956). . .^{PiiLL. 0. 11). . . Aitken (3465). . .See 
(3496). . .Cin". . .Cin*. . .Glasenapp (1). . .] 





P33 


, 34- La 


ande 28246 










R.A. 15^ 
Decl. ~ 


24 

12 


35' s 










A and B 


( = 


= /3 33) 






1875-36 




47-5 


II 

2.75 




8.0. . . 10.3 


3« 


J 


1878.49 


43-0 


2.94 




8.0. . . 10. 


2/1 


Cin 


1886.41 


41.0 


3-14 




8.2. . .10.5 


Ml 


LM 


1892.40 


42.1 


3.08 




7.8. . . 10.4 


2/1 


Lv 


1898.04 


41.4 


2.74 




8 ... 10 


5" 


D 


1898.44 


41.8 


2-95 




8.0. . . 10. 


3« 


A 



C and D (= ^ 34) 



1872.43 55± 
1898.04 55.2 

1898.44 56.2 



3± 

6.54 

6.58 



10 



10.8 ... 10. 



A and C 

1898.45 138% 246.5 

A and E 

o // 

1898.27 132.2 31.52 
Discovered with the 6-inch. 



/3 
5;/ D 
3« A 



in A 



. 12.3 4« D 



[^ (l). . .(3 {Mon. Not. XXXIII, 351). . .Zl (i). . .CinS. . . LM . . . 
Lv {A.J. 278) {Proc. Haverford Coll. Obsy. 1892). . .Aitken 
( ) . . . Doolittle {Pub. Flower Obsy. l) . . . ] 





|i 


944- Lalande 28326 










R.A. 15I' 25 


" 34= \ 










Decl. -f 48 


' 8' \ 






1879.28 


128^5 


10.74 


6.5.. .12.5 


2n 


/? 


1891.26 


126.7 


10.98 


6.7.. .11.9 


V 


/3 


1899.08 


126.6 


10-53 


7.0. . .11.5 


\n 


/3 



Discovered with the 18 ^^ -inch. Apparently fixed. 
Magnitude in D.M. 6.7 ; Lalande 6. 

r/3 (xiii). . ./33. . .^ (3114). . .^ {Pub. L. a II). . . J 





p 


945- Lalande 28358 










R.A. IS*- 


26 


- 6s } 










Decl. + 


57 


-51'^ 






1879.28 




I3-I 


16.37 




6.8.. .12.7 


V^ 


/? 


1891.42 


25-5 


15.89 




6.3.. .11.7 


2H 


/3 


1896.49 


30.8 


15.68 




. . . 


yi 


A 


1896.51 


31-8 


16.03 




6.6 . . . 12.0 


211 


Lv 


1898.57 


34-3 


16.09 




6.0. . . 12.0 


3" 


A 



Discovered with the i8j^-inch. The large star 
has a considerable proper motion : 



Stumpe 

Krueger 

Porter 



0.304 in 297.4 
0.295 'II 298.5 
0.308 in 299.1 



With Porter's proper motion and the position 
given by the measures of 1879, the small star, at 
the date of the last measures in 1898, should be 
34?3 : i5f8o. It is evident that this is only an 
optical pair. 

[^ (xiii). . .,33. . ./3 (3114) . . .,3 {Pub. L. O. II). . .Aitken (3395) 
.. .Lv (^./. 407). . .Aitken ( )...] 



P 121. B.A.C. 5163 







R.A. \^ 


32 


"" 20= 
J5' 












Decl. — 


27 








1877.72 


2 78°3 


1.68 




7 7-- 


7-9 


yi 


Cin 


1888.50 


274.0 










\>i 


Lv 


1889.47 


277-5 


1-45 




8.2.. 


8.2 


3« 


^ 


1890.45 


101.8 


1.65 




7.2.. 


7-3 


211 


Gl 


1898.48 


275-1 


1.66 




8.3.. 


8.4 


2)1 


D 



Discovered with the 6-inch. Unchanged. 

[/3 (III). . ./3 {Moti. Not. XXXIV, 59). . .(3 (2957). . ./3 {Pub. L 
O. II). . .Cin3. ..Cin"... Cin5. . .Lv'. . .Glasenapp (i)... 
Doolittle {Pub. Flower Obsy. i). . .] 



P 122. Lalande 28495 

R.A. 15" 32"- 59^ I 
Decl. — 19^ 23' S 



1868.51 


22.5 


2.01 






m 


Hd 


1875-45 


204.0 


1.76 


7.1. . 




A" 


J 


1877-39 


203.6 


1.96 


7.6.. 


■ 7-7 


2tl 


Cin 


I8SI.03 


26.7 


1.99 


7.0.. 


• 7-5 


2« 


Sp 



144 



General Catalogue of Double Stars 



1885.36 


202. 8 




8 .. 


8 


\n 


LM 


1887.45 


25.8 


1-75 


7.0.. 


7-3 


2U 


T 


1888.35 


24.9 


^•74 


7.0.. 


7-5 


2)1 


T 


1888.39 


206.9 


1.96 


7-5- • 


7-7 


3« 


Lv 


1890.40 


26.1 


2.03 


7-5-- 


7-7 


211 


Gl 


1894.54 


207.9 


1.67 


7-5- ■ 


7-5 


2/1 


Sel 


1897.49 


208.0 


1.84 


7 • • 


1% 


211 


Sc 



Discovered with the 6-inch. Probably without 
change. The small difference in the magnitudes 
is probably the explanation of the quadrants 
assigned by the several observers. This pair is 
2" 3'/ K Librae and 5 ' i'. It is found in the sub- 
sequently published Harvard observations. 

[(3 {\n)...§{Mon. iVo/. XXXIV, S9) ... ^ (i).-.^ (2086). . .Cin" 
. . .LM. . .Lv^. . .Aniials Harvard Obsy. xill . . .Tarrant 
(2899,2991). . .Sp (11). . .Glasenapp (l). . .Sellers (3303) 
. . . Scott [Mon. Not. Lix, 427) . . . ] 



P 354- O.Arg. S.I 4797 



R.A. 15'^ 36"^ 0^ 
Decl. — 25^" 2' 



1876.44 


285.7 


5-17 


7.0.. 


. 9.0 


171 


Cin 


1877.41 


285.6 


5-37 


7.9.. 


. 8.7 


2)1 


Cin 


1890.42 


287.7 


5-32 


7.4. . 


. 9.2 


211 


Gl 



Discovered with the 6-inch. Relatively fixed. 
[iS (vi). . . (3 (2062). . .Cin3. . .Cin". . .Glasenapp (l).. .] 

P 35- B.A.C. 5184 

R.A. 15!' 36"' i^ \ 
Decl. - 15° 38' \ 



1875.41 


99.2 


2.40 


7.1.. 


. 8.2 


4« 


A 


1877.42 


97-4 


2-53 


6.7.. 


. 8.7 


211 


Cin 


1886.47 


100.5 




8.0.. 


. 1 1.O 


I /I 


LM 


1887.44 


98.0 


2.28 


7.0. . 


. 8.0 


211 


T 


1888.35 


100.5 


2-39 


7.0. 


. 8.0 


2)1 


T 


1890.41 


102.4 


2.64 


7.2.. 


. 8.4 


2« 


Gl 



P 619. Serpe?iHs 55 



Discovered with the 6-inch. Without sensible 
change, but the components have a common 
proper motion of o!'i85 in the direction of 25o?5 
(Porter), and hence it is a physical pair. Lalande 
28591 =PiAzzi XV. 150. 

[/3 (i). . .^ (Mon. Not. xxxiii, 351). . .A (i). . .^ (2081). . .Cin< 
. . .LM. . .Tarrant (2899,2991). . .Glasenapp (1). . . ] 







R.A. 151^ 


37" 34^ 


\ 










Deci. + 


14° 3' 






1878-35 


359-7 


0.58 


6.5. 


■ 7-0 


2« 


/3 


1878.46 


354-0 


0.38 


6.2.. 


. 6.2 


2« 


J 


1883.49 


353-7 


0-45 


6.5. 


. 6.5 


2>n 


Sp 


1884.17 


364-9 


0-33 


6.0. 


. 6.4 


6h 


En 


1885.52 


361.8 


0.45 


. 




2« 


H2 


1887.61 


358.4 


0.47 






6« 


Sp 


1888.39 


360.6 


0.63 


6.0. 


■ 7.0 


2« 


Lv 


1888.66 


358.1 


0.54 


6.5. 


.. 7.0 


yi 


T 


1891.29 


359.8 


0-59 


6.9. 


• 7-7 


3" 


|8 


1894.50 


363-1 


0-55 


. 




in 


Sp 



Discovered with the 183^ -inch. A fine, close 
pair, but so far without change. Lalande 28656. 

[^(x).../3'.../3 (3114)...^ (/'«*-^. 0.ii)...A (i)...Sp(ii, 
lIl)...HS ( ). . .Engelmann (2678) ... Lv'. . .Tarrant 
(2991).. ■] 



P 620. O. Arg. S. 14842 







R.A. i5'> 


38' 


"54= 












Decl. — 


27 


= 41' 












A and B 








1878.38 


1 66^8 


0.86 




7-5- 


- 7-5 


If) 


/8 


1892.41 


154.4 


0.50 




7-7- 


• 7-9 


3" 


/8 


1892.41 


165-5 


0.65 




7.0. 


. 7-6 


in 


Lv 


1896.49 


170.2 


0.72 








III 


A 


1896.52 


174.5 


0.63 








3" 


Lv 



AB and C (= H 4803) 



7-5 
7-5 
7-1 
7-2 



The duplicity of the principal star of the wide 
pair, H 4803, was discovered with the 183^-inch. 
Change is probable. All the measures of C are 
given. Lacaille 6516. 

[i3(x)...i3'...j3 (3ii4.3i42)...j3 (Pub. L. O. 11)... Lv [A. J. 
278, 407) {Proc. Haverford Coll. Obsy. 1892) . . . Aitken 
(3395)... Glasenapp (i)...] 



1836.7 


214.8 


40 dz 


1878.38 


214. 1 


50-25 


1879.46 


213.4 


51-15 


1890.45 


213.9 


50-75 


1891.49 


214.2 


50.80 


1892.41 


214.5 


50.74 


1892.41 


215.4 


50-53 



9 


m 


H 


9.0 


1)1 


/? 


9.0 


1)1 


Cin 


8-5 


2« 


Gl 


9.0 


yi 


/3 


8.6 


3« 


^ 


0.0 


1)1 


Lv 



Discovered from iSji to i8gg by S. W. Burnham 



145 



P 240. W XV. 731 



R.A. 15" 


39"" 32= 


) 






Decl. + 


4' 24' 


\ 






A and B 








2-35 


8.5. 


. . 10. 


4« 


J 


2.49 


8.5. 


. . 9.0 


ifi 


^ 


2.27 


8.4 


.. 9-8 


yi 


Lv 


2-33 


8.5 


• • 9-3 


m 


iS 


A and C 








27^88 




..II. 5 


\n 


/8 


28.33 




. . 12.0 


2n 


Lv 


28.73 




. .11.8 


\n 


/8 



1875.90 135.4 

1880.46 135.9 

1892.70 135.0 

1899.26 134.0 



1880.46 42.1 
1892.36 40.2 

1899.26 39.7 

Discovered with the 6 -inch. Fixed. By an error 
in the reduction, the distance in ^^ jg printed 3 1 f 60. 

[|3 (v)...i3 {Mon. Not. xxxv, 31). . .(33. . . Zl (l)...Lv {A.J. 
278) {Prvc. Haverford Coll. Obsy. 1892). . .] 



P 946. B.A.C. 5248 

R.A. is^ 44'" 44S /_ 
Decl. -f 55= 45' \ 

O II 

1879.28 152.0 1. 31 5. 2... 10. 9 3;/ /3 

1891.28 148.9 1.43 5. 7... II. 5 3« fi 

Discovered with the 18^ -inch. A fine unequal 
pair in Draco. In Heis 5 m ; D.M. 6.0. 

1(3 (XIII). . .i33. . .,3 (3114). . .? (Pub. L. O. II). . .] 



P 415- O.Arg. N. 15675 



R.A. 15'' 44"" 50* 







Decl. + 65 


° 57' 












A and B 








1876.39 


336°8 


12.72 


8.5. 


.11.5 


m 


J 


1892.42 


335-4 


12.77 


8.2. 


• 10.5 


2)1 


Lv.C 


1899.08 


334-5 


12.86 


8.2. 


.11.6 


2« 


|8 






A and C 








1876.39 


357°6 


30.82 




. 12.0 


\n 


J 


1892.42 


358-3 


29.22 




. 10.6 


2n 


Lv.C 


1899.08 


358-7 


28.39 




.11.7 


2n 


/8 



of the stars. There appears to be no change 
in AB. 

[)3 (vii).../3 (2103). ..J (i)...Lv and Collins (^.7.278) 
(Froc. Haverford Coll. Obsy. 1892). . .] 



P 621. W= XV. 1130 







R.A. 15^ 45 


.553 


} 






Decl. -f 44 


"■ S3 


\ 


1878.48 




75-1 


o.5± 


7-5 




IS84.6I 


65-5 


0.40 






1891.32 


62.2 


0-57 


8.1 




1898.47 


58.8 


0.62 


8 




1898.53 


57-0 


0-54 






1898.57 


57-0 


0.63 


7-5 





in 


P 


4" 


H2 


3« 


/3 


2« 


D 


in 


Lew 


Zn 


A 



Discovered with the 6-inch. The measures of 
AC indicate a proj)er motion of o'l in one 



8.0 



9-3 



8-5 



Discovered with the i8j-^-inch. M\- single meas- 
ure in 1877 ^v^s noted as somewhat uncertain, and 
therefore the apparent change in the angle mav not 
be real. 

[^ (x).. ./3'...(3 (3ii4).../3 (Pub. L. O. 11)... Lewis {Mon. 
Not. Lix, 400;... HS ( )...Aitken ( ) . . .Doolittle 
{Ptib. Flower Obsy. l) . . .] 



P 36. 2 Scarpa 

R.A. 15'' 46" 24= \ 
Decl. — 24° 58' \ 



1877-37 


277 


6 


2.47 


6.0 


.. 8.0 


in 


Cin 


1878.46 


279 





2.58 


5-5 


. . 8.0 


If! 


Cin 


1880.38 


275 


4 


2.80 


5-0 


-- 7-5 


IN 


Cin 


1884.14 


274 


7 


2.89 


5-7 


- - 7-7 


A" 


\\" 


1888.57 


277 


I 


2.63 


5-8 


.. 7-6 


in 


Lv 


1889.47 


276 


3 


2.84 


5-5 


. . 10.2 


2« 


T 


1892.38 


277 


8 


2.86 


5-8 


.. 7-6 


2« 


Lv 


1894.58 


276 


6 


1-94 


6 


-• 9-5 


2« 


Sel 


1896.32 


279 


7 


2.83 


4-5 


• - 7 


3" 


Teb 


1897.47 


274 


4 


2-93 


5-9 


-- 9 


I// 


See 


1898.49 


275 


5 


2.88 


5 


• ■ 9 


3" 


Sc 



Discovered with the 6-inch. There has been no 
sensible relative change, but it is without doubt a 
physical system, as the components have the same 
proper motion of o.'o49 in the direction of 253^6 
(AuwER.s). 

[/3 (i).../3 {Man. Not. xxxiii, 351) . . .Cin*. . .CinS. . .Cin». . . 
Wilson (Cin"). . .Lv'. . .Lv {A.J. 278) (Proc. Haverford 
Coll. Obsy. 1 892)... Tarrant (3 1 86). . .Sellers (3303)... 
Tebbutt {Moil. jVot. i.vii. 584) . . . See (3496) . . . Scott {^fon. 
A'ot. I. IX, 427). . .] 



146 



General Catalogue of Double Stars 



P 810. W= XV. 1156 







R.A. 15" 
Deci. + 


46 
42 


50' s 






1881.32 




93-2 


// 
1.09 




8.5. ..II. 2 


3« 


/? 


1888.51 


91-5 


1-35 




8.9. . . 12.2 


3« 


Com 


1893-37 


89.1 


1-15 




8.8. . .11.2 


3« 


W 


1896.51 


86.0 


0.82 




8.6. . . 10.8 


Zn 


Lv 


1898.61 


89.4 


0.99 




8.6 .. . II. 7 


yi 


A 



Discovered with the 15}^ -inch at the Washburn 
Observatory. The motion, if any, is slow. 

[(3 (xil). . ./S't. . .Comstock {Pub. Wasliburn Obsy. vi)...Lv 
(^./. 407)... Wilson ( )...Aitken( )...] 



P 622. TT Scarpa 



R.A. 15'^ 


51 


"36= \ 








Deci. — 


25 


°46' 








// 
49.99 




6 . 


. 12 


211 


13 


50-41 






.12.3 


y 


li 


50.21 






.11.5 


in 


13 



1878.40 132.6 

1892.39 132.2 
1899.44 132.2 

Distant companion noted with the 18^ -inch. 
The large star has a proper motion of 0^056 in the 
direction of 2 34? 3 (Auwers). B is probably only 
an optical companion. 

[/3 (X). . ./3'. . ./3 (3142). . .^ IFub. L. (9. II). . .] 



P 623. Lalande 29127 



R.A. is=> 54"^ 51= 
Deci. — 6M8' 



1878.45 238.4 0.97 8.0... 9.0 \n /3 

1878.68 236.8 0.99 8.0... 8.5 3« Cin 

1888.27 237.8 1. 01 8.0... 9.0 in Lv 

Discovered with the 18^ -inch. Recent meas- 
ures are wanting. 

[(3 (x).. ./3^. .Cins.. .Lv'. . .Glasenapp (l). . .] 



P 37- Cord. (24°) 12474 



R.A. 15'' 55"- 155 
Deci. — 24' 15' 



1879-39 39-1 2.85 8.5... 9.5 m Cin 

1891.49 44.6 2.69 g.o... 9.4 3« (i 

1892.41 43.4 3.09 8.6. .. 9.7 



7,n Lv 



Discovered with the 6-inch. 

[P {!)... {Mon. Not. xxxiii, 3Si).../3 {iiia,). . .0 {Pub. L. O. 
11). . .Lv {A./. 278) {Proc. Haverford Coll. Obsy. 1893). . .] 



P 38. Lalande 29136 



R.A. 15" 55"> 39= 
Deci. — 24° 41 ' 



1877-53 


350-4 


4.C8 


8.0. 


.10.5 


m 


Cin 


1880.48 


351-5 


4-07 


8.5- 


. 10. 


\n 


Cin 


1891.49 


352.9 


4-52 


7-7-- 


. 9.2 


yi 


^ 



Discovered with the 6-inch. Unchanged. 

[^3 (i). ../3 {Mon. Not. xxxill,3Sl). ../3 (3114). . .(3 {Pub. L. O. 
II). . .Cin't. . .Cin^ . .] 



P 947, p Scorpii 







R.A. 15" 


58™ 28= 












Deci. — 


19" 29' 










A and B 








1879.59 




97-3 


0.85 


2 


. . 10 


\n 


HI 


1880.06 


88.4 


. 0.91 




- - 9-7 


y 


i8 


1881.50 


92.7 


0.96 




-- 9-3 


V^ 


y8 


1887.59 


99.2 


1.09 






2« 


HI 


1887.60 


88.5 


0.98 






yi 


Sp 


1889.41 


93-9 


0.94 




. . 10.8 


5«. 


/8 


1891-55 


95-7 


1. 00 




. . 10 


2« 


HI 


1892.41 


95-8 


1.03 




•- 9-5 


3« 


y8 


1897-57 


90.6 


1.00 




..II 


3« 


A 



A and C (= H ' IIL 7 = Sh 217) 



1782.29 


25-1 


14-37 


1823.28 


26.5 


13-65 


1868.56 


25-5 


13-71 


1879.52 


24.4 


13-50 


1879-55 


24-3 


13-82 


1881.59 


25.2 


13-41 


1885.01 


25-3 


13-59 


1888.08 


24.8 


13.62 



2.7 



3-9 



5-1 



6.0 



171 


H' 


\n 


Sh 


4« 


J 


V> 


/8 


4'/ 


Cin 


i" 


/S 


6n 


En 


An 


HI 



The close pair was discovered with the 18^- 
inch. The measures do not indicate any material 
change, but it is a physical system, as the com- 
ponents have a common proper motion. This 
movement is given by Auwers in his Fiindame7ital 
Catalogue as ofo457 in the direction of 233?7. If 
the small star was fixed in space the change in the 



Discovered front i8ji to i8gg by S. W. Burnham 



147 



position of B would be very apparent in the time 
covered by the measures. The Herschel com- 
panion appears to be fixed with reference to A, 
and is therefore a member of the system. If C had 
no proper motion, its angle and distance in the 
interval between 1823 and 1888 would increase 
respectively 4? 7 and 2".^. It is evident from the 
measures that no such change has taken place. 
The Harvard photometric magnitude of /3 Scorpii 
is 3.0, and of C 5.2. 

[^(xni).../33...^4...^ (2957,3142)... (3 {Pub. L. O. II)... 
Sp (11)... Hall (I, ii)...Aitken (3465)...] 

A few only of the measures of AC are given. 
The following refer to this companion : 

Powell {Mevi. A'. A. S. xxv, xxxii). . .Mitchell (Cin=) 
(Sid. Mess. April 1846). . .Madler [Fixstern-Systane I, p. 213) 
Analen d. ICotiigsberg Stermva?-ie,'^iur\dcLe.xi xvil . . . Worster 
and Jacob [Madras Obsns. 2d Series) . . . Herschel {Mem. J?. A. 
S. V, xxxvHi). . .Beer and Madler (280). . .Oudemans (926) 
. . .Secchi {Cat. 132 r Stelle Doppie) {Double Star Measures 1855) 
.. .Raddiffe Obsns. xxi, xxil, XXVIII . . .Hall {Wash. Obsns. 
1863). . .4 (1192). . .A (i). . .Pritchett {Pub. Morrison Obsy. l) 
. . .Engelmann (2786). . .CinS. . .Tebbutt {Mon. Not. L, 23). . . 
Wilson (Cin'°). . .Cruls {Annals Imp. Obsy. Rio de Janeiro, iv, 
Part i). . .Glasenapp (l). . . Hussey {A.J. 397). . .] 



P948. 



Librae 2 1 3 



R.A. 15'' 59'" 20=^ 
Deal. — 5° 58' 







A and B 








1879-59 




150-5 


// 
1.46 


6.8. . 


- 9-5 


A" 


^ 


1888.46 


147.4 


I-5S 


6.9.. 


• 9-4 


2/1 


Lv 


1892.40 


149-3 


1-54 


7.1. . 


- 9-4 


3« 


Lv 



A and C (= S 2005 '''!/•) 



1835-6 


230-5 


20 + 


7 


. . 12 


I// 


H= 


1879.42 


233-7 


28.54 




. .10.4 


211 


/3 


1892.41 


234.8 


29.05 

A ai 


id D 


. . 10.4 


2)1 


Lv 



1835.6 185.0 35± 
1879.42 192.7 52.27 
1892.41 194.9 52.72 



..12 I ;/ H=' 

..10.8 211 ;8 

. . 10.8 2// Lv 



The duplicity of the principal star of 2 2005 
rcj. was discovered with the 1 8;^ -inch. All the 
measures of the distant stars are o;iven above. 



Gould puts this in Ophiuchtis, 6.8 m. Lalande 
29280. 

[/3 (xill). . .(33. . .Lv'. . .Lv {A.J. 278) {Proc. JIaverford Coll. 
Obsy. 1892). . .Herschel {Cape Obsns.). . .] 



p8ii. 



W^ XV. 1500 



R.A. 16'' 0" 4= 
Decl. + 22" 30' 



S8I.3I 


22 1.6 


3-49 


8.1. 


.12.1 


i" 


/s 


888.56 


219.0 


3-76 


8.5- 


. 12.0 


y 


Com 


889.49 


220.7 


3-70 


7.8.. 


. 10.8 


3" 


/? 


899.28 


221.5 


3-88 


8.0. 


. lO.O 


2n 


(i 



Discovered with the 15^ -inch at the Washburn 
Observatory. This star, according to the Berlin 
A. G. Catalogue, has a proper motion of o.'iog in 
the direction of 297 ?3. The components are ob- 
viously moving together. 



[/3 (xii)...|34.../3 (2957).../ 
{Pub. Washburn Obsy. vi) 



{Pub. L. O. \\) ... Comstock 



P 39. II Scarpa 









R.A. 16" 


om 57s ^^ 












Decl. — 


12° 25- S 













/; 










1872.55 


258 


2 


3-75 




.10.3 


\7l 


Kn 


1875-71 


256 


5 


3-35 


6.1. . 


.10.4 


4;/ 


J 


1879.38 


258 


9 


3-77 


6.0. 


. I i.o 


111 


Cin 


1879.49 


258 


4 


ZIZ 


6.0. 


. I I.O 


3" 


/8 


1879.58 


256 


5 


3-31 






111 


Pt 


1880.48 


256 


9 


3.20 


6.0.. 


. 9.0 


in 


Cin 


1882.38 


254 


6 


3-36 




. 9.0 


211 


W 


1888.44 


259 


4 


z-zz 


5-5- 


. 10. 


in 


Lv 


1889.44 


257 


7 


'3-25 


6.0. 


.10.5 


211 


T 


1899.38 


25S 


3 


l-2>^ 


6.C. 


• 9-7 


211 


y3 



Discovered with the 6-inch. The measures do 
not show any relative motion, and the proper mo- 
tion of the principal star of o.'oSo in the direction 
of 245?8 (AuwERs) belongs to the small star as 
well. It will be shown hereafter to be a physical 
system, but of long period. There is a 13 m star, 
313-8 :3o"o. 

[^3 (i).../i [Mon. A'ot. xxxiii, 351)... /3' 1 (i)... Knott 

{Mem. R. A. S. XLin). . .CinS. . .Cin«. .. Pritchett (Pud. 
Morrison Obsy. I )... Wilson (Cin"°). . .Lv' ... .Tarrant 
(3186)!..] 



148 



General Catalogue of Double Stars 



p 812. W= XV. 1553 

R.A. 16" I" 42^ \ 
Decl. + 17° 13' S 

O II 

1881.31 127.4 0.87 8.2... 8.3 3« /3 
1888.45 125.2 0.76 8.7... 9.0 yi Com 

Discovered with the 15^-inch at the Washburn 
Observatory. 

[/3 (.Kll). . .P*. . .Comstock {Pici. l-Fas/iii/rn Obsy. vi). . .] 



P 949. Lalande 29365 

R.A. 16" I'" 54= ] 
Decl. — 9° 47' i 

° " o 

1880.25 197.8 0.62 7.6... 7.7 4« p 

1887.89 195.2 0.48 ... 2)1 Sp 

1898.52 208.6 0.41 7.5.. • 7.5 yi A 

Discovered with the i8i/2-inch. Motion is prob- 
able. 
[)3(xin).../3^..Sp (iii)...Aitken ( )...] 



P40. O.Arg. S. 15343 



P 355' Lalande 29506 







R.A. i6'> 


4" 14= 






Decl. + 


45° 42' 






A ar 


idB 


1876.34 




279-3 


0-34 


7.8 


1878.83 


269.5 


0.40 


7.2 


1886.67 


280.0 


0.36 




1887.57 


269.5 


0-35 




1888.61 


273.8 


o.4± 




1892.27 


277.4 


0.40 


7.9 


1897.34 


278.5 


0.44 




1898.53 


278.1 


0.42 








AB and C 


1892.27 




97-3 


12.8 




1898.53 


99-2 


12.87 





8.0 


4« 


J 


8.0 


i" 


Sp 




7« 


En 




S?i 


Sp 




3" 


Sp 


9.2 


y 


/8 




in 


Lew 



Bow 



-U 



1898.53 98.0 12.49 



I// 


y3 


I// 


Bow 


I« 


Lew 



Discovered with the 6-inch. The measures, 
taken together, do not indicate any change. It is 
56*/ 2 2015. The faint star was added with the 
36-inch. 

[/3{vi)...|3 (2062,3142)... (3 (/>«/;. Z. 0.u)...d (i)...Sp(n, 
III). . .Engelmann (2786) ... Lewis and Bowyer [Moti. 
Not. LIX, 400) . . . ] 



R.A. l6'> 


4"" 295 


\ 








Decl. — 


27 


" 14' 


\ 








5.02 




8.0 




9-5 


2/1 


Cin 


5-71 




8.5 




9-3 


2)1 


Gl 


5-07 




8.4. 


■ ■ 


9.4 


4^ 


i8 



1877.00 352.7 
1890.46 354.7 
1891.48 355.2 

Discovered with the 6-inch April 27, 1870. This 
pair precedes all others in this catalogue in refer- 
ence to date of discovery. There does not appear 
to be any sensible change. Glasenapp measures 
a third star 9.8 m, 95?9 : 98!37 (1890.46) 2;/. 
[(3 (I). . ./3 {Man. Not. xxxill, 351). . ./3 (3114). . .^(Pub.L. O. 
11). . .Cin3. . .Cin-». . .Glasenapp (l). . .] 





p 


1087. 

R.A.. 16" 


T Coro7iae 

4" 35= \ 
36° 48' \ 










Decl. + 






IS89.2I 


G 
169. I 


3-II 


5-5-. ■13-8 


yi 


1^ 


1890.32 


168.3 


3.12 


• --13-5 


y 


a 


1891.32 


170.7 


3-17 


. . . 14-2 


VI 


i8 


1892.36 


169.9 


3-10 


...13.9 


y 


/8 


1898.37 


172.9 


3-17 


. . . 14-0 


y 


(i 


1898.64 


169.9 


3-27 


5-3- . •14.3 


y 


A 



Discovered with the 36-inch, t Coronae has a 
considerable proper motion : 

II o 

Auwers - - 0.345 in 348.3 



Porter 



0.346 in 349.8 



It is obvious from an inspection of the measures 
that the small star is moving at the same rate. 
This movement of A is almost exactly in the oppo- 
site direction, and if the small star was fixed in 
space, its distance would increase annually by the 
amount given above, which would make the dis- 
tance in 1898 more than double that given by the 
first measures. 

[i3 (xv).../3 (2929.3048,3114.3142)...^ (/"«/'. Z. O. 11)... 
Aitken ( )...] 

P 120. V Scarpa 







R 


A. 16'' 5"' i'^ ) 












Decl. — 19° 9' ^ 














A and B 








874.40 




357-7 




// 


. 


6« 


i3 


874.47 


365.2 








17! 


N 


876.35 


360.0 




0.73 4.2.. 


. 6.7 


8« 


J 



Discovered from iSyi to i8gg by S. W. Burnham 



149 



1876.53 


361.5 


0.67 


4.2. . 


. 6.5 


5^' 


Sp 


1877.49 


364-4 


0.64 


4.2. . 


. 6.0 


\ii 


Cin 


1878.35 


363-7 


1.04 






211 


,/? 


1878.36 


359-4 


0.52 






211 


Ru 


1879.03 


360.2 


0.74 


4.2. 


. 6.0 


y 


Cin 


1879.58 


362.0 


0.65 






S" 


Sp 


1879.59 


365-3 


0.74 


4 ■ 


• 7 


\n 


HI 


1880.00 


366.2 


0.66 


4.7. 


■ 5-7 


8« 


^ 


1880.40 


361.0 


. . . 






\7l 


Cm 


1880.54 


360.9 


0-53 






211 


Pt 


1881.45 


366.7 


0.81 






bn 


/8 


1882.55 


359-9 


0.72 






2/1 


Sp 


1884.40 


363-4 




7.0. 


■ 7-5 


111 


W 


1886.30 


367.2 


0.65 


4 ■ 


. 6 


\ii 


LM 


1886.42 


357-3 








\ji 


Sm 


1886.52 


369-3 


1.08 


4.0. 


. . 7.0 


211 


T 


1886.61 


363-9 


0.74 






3" 


HI 


1888.36 


362.8 


0-95 






3" 


'\ 


1888.41 


364.1 


0.80 


4.0. 


■5-5 


3" 


Lv 


1888.57 


364-9 


0-59 






2H 


HI 


1889.44 


361.2 


0.80 






3" 


^ 


1895.48 


362.8 


0.81 


6.0. 


. 6.5 


3» 


A 


1896.51 


363-5 


1-15 






lit 


Hu 


1896.59 


367-4 


0.88 






211 


Pt 


1897.48 


360.6 


0.71 






yi 


A 



C and D (=^ Mitchell) 



1846.58 




39-0 


I. II 


1868.51 


41-3 


2.03 


1875.42 


47-9 


1.89 


1877.78 


45-6 


2.08 


1879.41 


45-2 


2.07 


I88I.3I 


46.6 


2.02 


1886.51 


49-5 


2.10 


1886.61 


45-8 


2.05 


1888.42 


48.3 


2.22 


1897.48 


48.7 


2.02 


1897.48 


43-6 


2.05 


1897.60 


45-5 


1.78 


1898.54 


45-0 


2.05 




AB an 


d C(=:H 


1782.30 




334-9 


38.33 


1821.36 


338.2 


40.82 


1875-43 


336.8 


40.77 


1879-58 


337-7 


40.98 


1881.60 


336-6 


40.97 


1886.61 


336.5 


40.91 



7.0 

7.0 
7.0 

7-1 

7-3 

7-4 

7 



V. 6 



1897.60 326.4 41.12 



8.0 

8.0 
8.0 
8.0 

8.0 

8.1 
8 



211 
lit 

411 

?>1t 
9;/ 
4;/ 
4/; 

3" 
3" 
3"- 
3" 
411 
211 



Sh 220) 



Mh 
Hd 

J 

Sp 

Cin 

/3 

T 

HI 

Lv 

Sc 

A 

Bar 

Maw 



Ml 


H- 


111 


Sh 


411 


J 


3^' 


Sp 


3^' 


iS 


3" 


Hi 


3" 


liar 



The close pair was discovered with the 6-inch. 
The duplicity of Herschel's companion was dis- 
covered by Mitchell at Cincinnati in 1846, and 
independently by Jacob the following year. The 
measures of AB show no sensible motion, and the 
same may be said of CD. There has been no 
change in the distance or direction of the two pairs 
with reference to each other. The principal star, 
according to Auwers, has a proper motion of o f 042 
in the direction of 25i?9. The four components 
are evidently moving together, and undoubtedly 
form one vast quadruple system. This is in the 
midst of a complex nebulous area discovered by 
Barnard (see Mon. Not. LIX, 367). 

[/3 (ill)... (3 (Mon. yVoA XXXIV, 59 ; XXXV, 28) . . .^' . . ./33. . . 
/3-t...(3 (2957)... /3 [Pub. L. O. 11). . .Newcombe [IVash. 
Obsns. 1874). . . J (\). . .A (2186). . .\<.Xi%%^\\{Sydney Obsns. 
i87i-8i)...Cin4...Cin5...Cin6...Sp (11)... Sp (2133) 
...HI (l, II). . .Pritchett {Pub. Morrison Obsy. l) {A.J. 
397). . .Wilson (Cin'°). . .LM. . .Smith (Mem. P. A. S. l) 
. . .Tarrant (2866,2991) . . .Lv'. . .Lv {Sid. Mess, vill, 77) 
...Hussey {A. J. 397). . . Aitken (3465) {Ast. Soc. Pac. 
VII, 305). . .Scott(il/o«. A^o/. Lix,427). . . Barnard ( ). . .] 

The following relate to observations of the old 
components : 

[Herschel (Ca/^ Obsns}j . . . Wrottesley {Me/ii. R. A. S. xxix) 
. . . Worster and Jacob {Madras Obsns., First Series) . . . Secchi 
{Catalogo di 1321 Stelle Doppie, app.) {Mem. Coll. Rom. 1855) 
. . . .4nnals Harvard Obsy. XIII . . . Mitchell (Cin^') . . . Glasenapp 
(i). . .Sellers (3154). . .Maw {Mem. R. A. S. Liii). . .] 



P 624. O. Arg. S. 15565 



K.A. 16'' 15'" 42^ 



Decl. 



22° 50 



1878.47 


321.7 


1.12 


8.0. 


- 9-7 


211 


li 


1879.39 


320.0 


1-25 


7-7- 


• 9-3 


3'' 


Cin 


1880.38 


320.9 


. . . 






\n 


Cin 


I89I.5I 


322.2 


1.17 


8.1. 


. 10.2 


(ill 


li 


1895.63 


316. 1 


I-I5 


8.1 . 


.9.6 


3" 


A 



Discovered with the 6-inch. Near 5 Ophiuchi. 
[|3 (x).../3-.../3 (31 14)... /3 (/'«/;. L. O. 11) . . .CinS . . .Cin«. , 
Aitken {Ast. Soc. Pac. vil, 305). . . | 

P 1198. T Herat lis 



1890.35 
1892.40 
1898.51 
1898.64 



145-3 
145.6 
145.0 
149.4 



R..-\. 16'' 


16' 


> 8^? 








Decl. -f 46 


36' i 








6.57 




4 . • 


13-9 


4" 


IS 


6.70 






.14.0 


iti 


/3 


6-79 






14.0 


211 


P 


7.10 






I 4. J 


3" 


A 



I50 



General Catalogue of Double Stars 



Discovered with the 36-inch. Auwers gives the 
proper motion of r Herculis oJo^s in the direction 
of 330? 5. It is uncertain from the measures whether 
or not the companion shares this movement. From 
the position of 1890, and this proper motion, the 
small star in 1898, if fixed in space, should be 
i45?5 : 6!'8. The probabilities are that this is not 
a physical system. The magnitude of the com- 
panion, and its distance from the primary during 
the whole of the present centur)', will explain its 
non-discovery heretofore. 



[iS (XVII)... /3 (3048,3142) 
( )••■] 



{Pub. L. O. ii)...Aitken 



P 41- D.M. (61") 1583 

R.A. 16'' 17"' 26' ) 
Decl. + 61' 44' ) 



1875-37 


58.9 


2.44 


9.0. 


.10.7 


3« 


A 


1893.46 


64.1 


2.41 


9.0. 


.11.2 


yi 


W 


1897.71 


62.5 


2.22 


9 • 


. 1 1 


yi 


D 


1898.63 


61.6 


2.36 


9.0. 


.11.0 


VI 


A 



Discovered with the 6-inch. Probably fixed. 
5 2045 is sp in a low-power field. 

[(3 (l)...(3 {Mon. Not. xxxin, 351)... zl (l)... Wilson ( ) 
. . . Aitken ( ) . . . Doolittl8 {Pub. Flower Obsy. l) . . . ] 





p 


1 1 15- Lalande 


29840 










R.A. 16'' 


18- 13^ 


\ 










Dec!. — 


23° n ' 


\ 











// 










1889.39 


26.3 


0.90 


8.1. 


. . 9.2 


4" 


^ 


1897.42 


18.4 


0.72 


8.0. 


• ■ 9-0 


yi 


A 


1897.65 


26.7 


0.97 


8.0. 


• -lo-S 


m 


See 


1898.47 


23-5 


1.02 


8.0. 


. . 9.2 


211 


D 



Discovered with the 36-inch. This is in the 
field with 5 Ophiuchi (=Sh 228), and was meas- 
ured from that star by Jacob at Madras. These 
are ail the measures : 

5 Ophitichi and ^1115 

o // 

1846.21 253.8 161.00 \n Jacob 

1889.39 253.0 156.43 yi P 

1890.41 253.2 155.97 2« Glasenapp 

1898.33 253.3 156.86 4« Doolittle 



The proper motion of Lalande 29840 is given by 
Porter as o!'o64 in the direction of 225?3. The 
components are therefore moving together in space, 
and doubtless form a binary system. The last 
Radcliffe Catalogue gives the proper motion of 
5 Ophmchi o".oi,6 in the direction of 258?7. 

[(3 (XVI). . ./3 (2956). . ./3 {Pub. L. O. 11). . .Aitken (3465>. . . 
See (3495)- • .Glasenapp (i). . .] 



P 950. S.D. (9") 4381 



R.A. 16'' 18™ 41' 
Decl. — 9° 35' 



1880.50 355.1 1. 18 8.2... 9.3 5« /3 

1888.46 350.9 ... 8.0...10.0 \n Lv 

1892.37 35-I-5 1-07 8.2... 9.0 yi /3 

Discovered with the i8j^-inch. 
[/3 (xni). . ./3^ . ./3 (3142). . .^ {Pub. L. O. II). . .LV. . .] 



P951. W = XVI. 543 



R.A. 16'' i8'" 59= 
Decl. +33= 3S' 



1879.32 


57-3 


0.98 


8.2.. 


. 8.7 


2n 


/? 


1892.24 


55-4 


0.91 


8.1. . 


. 9.0 


yi 


yS 


1898.53 


56.8 


1.07 






\n 


L 



Discovered with the iSj^-inch. Near v Coronae. 

[P (xiii). . ./33. . .(3 (3142). ../3 {Pub. L. O. II). . .Lewis {Man. 
Not. Lix, 400). . .] 



P 625. (0 Herctilis 

R.A. 16'' 19'" 53^ \ 
Decl. + 14° 19 S 

A and B 

1. 91 5.0... II. 5 yi /3 

2.1 1 ... 2)1 H2 

1.76 ... 1 1.7 2« yS 

1.86 5. 5... II. 5 yt A 



1879.21 176.8 

1885.51 183.2 

1890.38 178.2 

1898.50 184.3 



A and C 



1879.05 103.5 



)o.3/ 



'3-5 



33-89 
33-41 



1898.50 102.7 32.96 



1 1 . 2 4« /8 
12.2 3« /? 
12.2 yi A 



Discovered from 18"] i to i8gg by S. W. Burnham 



151 



Discovered with the 18}^ -inch. Auwers (A.N. 
3509) gives the corrected proper motion of this star 
oro65 in the direction of 159?!. The measures of 
C in 1890 and 1898 give for the movement of A, 
assuming the small star to be fixed, 0^079 in i49?o. 
It is probable, therefore, that this star has no sensi- 
ble motion of its own, and that AB form a physical 
system. 

[/3 (x).../3'...(33.. ./3 (3048)... ;3 {Pub. L. O. ll)...Aitken 
( )...HS( )...] 

P 813. W= XVI. 661 



R.A. i6'' 23" 2=- 
Decl. + 26° 48' 



1881.30 165.4 0.96 8.4... 8.4 yt /3 
1888.61 165.4 1.09 8.5... 8.6 3« Com 

I)iscovered with the i5j^-inch at the Washburn 
Observatory. 
f;8 (xn). . ./3i. . .Comstock {Pub. Washburn Obsy. vi). . .] 





^ 


814. W^XVI. 


576 










R.A. \b^ 23'" 9! \ 












, Decl. + 40° 9' \ 








1881.38 



^22.6 


0.36 8.4.. 


. 8.7 


y 


^ 


1891.32 


324-1 


0.31 8.4.. 


. 8.4 


yt 


/? 


1893-57 


318.9 


o-25± 




1)1 


Com 


1895.62 


328.4 


0.251b 




3« 


Com 


1896.43 


331-9 


0.25 




2« 


Com 


1898.47 


325-9 


0.29 8+.. 


- 8 + 


2n 


D 


1898.53 


325-2 


0.28 




III 


Lew 


1898.67 


326.4 


0.35 8.5.. 


- 8.5 


3« 


A 



Discovered with the 15^ -inch at the Washburn 
Observatory. The measures show no sensible 
change. 
[/S {xn).../34...,3 (3114)...^ (Pub. L. O. II)... Comstock 

{Pub. Washburn Obsy. x). . .Doolittle {Pub. Flo7ver Obsy. 

l) . . . Lewis {Man. Not. Lix, 400) . . . Aitken ( ) . . . ] 



P815. 



W=XVI. 686 



R.A. 16'' 23'" 16' \ 
Decl. -f 43" \\' S 



1881.30 


348.4 


6.42 


8.1. 


.10.4 


V 


^ 


1886.40 


344-5 


7.28 


8.2. 


- 10.3 


7« 


En 


1888.95 


343-2 


7.42 


8.1. 


. 10. 


A" 


Com 


1889.43 


343-3 


7.68 


8.5. 


. 10.8 


3« 


/3 



1890.33 


344-4 


7-76 


8.4 


.. 9.7 


3« 


iS 


1892.17 


344-5 


8.07 


8.4 


. . 10.2 


3« 


^ 


1896.47 


341.6 


8.65 


8.1 


• -10.3 


yi 


Lv 


1896.59 


337-8 


8.73 


8-5 


. . 10.2 


2« 


Soule 


1897.70 


340.1 


9.09 






v 


D 


1898.61 


340.6 


8. 89 


8-5 


..10.5 


3« 


A 



Discovered with the 15^ -inch at the .Washburn 
Observatory. The change shown by the measures 
is certainly due to proper motion of one star or the 
other. Porter finds no evidence of this in the 
meridian observations of A. The companion has 
an apparent annual motion of o!'i55 in the direc- 
tion of i4i?6. This is unusual in so small a star. 
The measured positions are shown in the following 
diagram : 

1^0° 



-2^<J^ 



-90^ 




[i 815 



L 



_L 



[/S (xil).../34.../i (2957,3048,3x42)... /3 {Pub. L. d ll).../3 
{Sid. Mess, ix, 299) {Ast. &^ A.-P. xui, 18). . .Engelmann 
(2786). . .Comstock {Pub. Washburn Obsy. vi) {Sid. Mess. 
IX, 78)...Lv (.4./. 407)...Soul<5 (^./. 410). . .Doolittle 
{Pub. Flower Obsy. 1) . . . Aitken ( ) . . . ] 



P 626. <}) Opliiiichi 







R.A. 10' 






Decl. - 


1878.41 



35-9 


32.46 


1892.40 


35-8 


33-40 


1 89 8. 30 


35-5 


33-59 


1 89 S. 4 1 


36-7 


33-38 



12.5 


2U 


li 


'3-0 


211 


fi 


'3-5 


2n 


a 


12.5 


V 


\ 



^52 



General Catalogue of Double Stars 



This distant companion was noted with the i8j^- 
inch. The principal star has a proper motion of 
0^078 in the direction of 249?! (Auwers). This 
accounts for the change in the companion. The 
proper motion and the position of 1878 give for B 
m 1898, 37?4 : 33''6i- 



[^(x)...i3^ 



{l\a,2)...^(Pi<h.L. O. n)...Aitken ( )...] 





p 


816. 3 


I 


Hercidis 










R.A. l6h 


27 


m qs 1 










Decl. + 


33 


°46' \ 






1881.30 




224.1 


4-97 




6.3. ..II. 8 


3'' 


iS 


1884.89 


223.6 


5-65 






y 


H2 


1888.54 


221.2 


5-31 




7.5. . .11.8 


3" 


Com 


1892.17 


224.2 


5-28 




6.3.. .11.8 


3" 


/? 


1898.47 


221.9 


5-II 




6.0. . . 9.5 


2/1 


D 



Discovered with the 15 ^2 -inch at tlie Washburn 
Observatory. Auwers gives this star a proper 
motion of 0^042 in the direction of 26o?3. With 
this movement, and the position of 1881, the com- 
panion, if fixed, should be at the date of the last 
measures, 2i8?6:4f4i. It is therefore probable 
that it is moving with the primary. 

[/3 (XII)... i34...^ (3142)... /3 {Pul,. L. O. II)... HS ( ) 
. . .Comstock (Pub. Washburn Obsy. vi) . . .Doolittle {Pub. 
Flower Obsy. l). . .] 



P 817. W= XVI. 796 



R.A. 16'' 27™ 29' 
Decl. -(- 23° 29 



'■\ 



1881.31 147.0 1. 14 8.2... 8.2 4;/ ^ 

1888.48 327.6 1. 14 8.6... 8.7 in Com 

Discovered with the 153/^ -inch at the Washburn 
Observatory. Unchanged. 

[/3 (xil). . ./34. . .Comstock [Pub. Washburn Obsy. vi). . .] 



P 818. 32 Hcrculis 







R.A. 16'' 28™ 49^ 






Decl. +30° 45' 


1881.48 




33-5 


3.29 6.3. 


1885.53 


33-4 


3-83 


1889.25 


36.1 


3.42 6.5. 


1889.28 


32-9 


3.64 6.0. 



•^3-5 3n P 

3" HS 

• 13-5 3« Com 

•13-5 3" ^ 

1898.64 33.8 3.96 6.3... 13. 8 3// A 



Discovered Avith the 151^-inch at the Washburn 
Observatory. Auwers gives the proper motion of 
32 Herculis, o!o67 in the direction of 243?7. This 
does not fully explain the change in the distance of 
the companion. That change would indicate a 
proper motion of about o!o4 in 213°. 

[(3 (xn).../34...j8 (2930)... /3 {Pub. L. O. 11)... HS ( )... 
Comstock {Pub. Washburn Obsy. vi). . . Aitken ( ). . .] 



P 356. O. Arg. N. 16336 

R.x\. 16'' 29™ 42^ \ 
Decl. + 69° 12' \ 



1876.21 118. 8 
1892.34 118. 9 
1897.70 119. 2 



6.85 9. 2... II. 5 3« J 
7.17 8. 6... II. 5 yi 13 
6.85 8. 9... II 3« D 



Discovered with the 6-inch. Without change. 

[/3 (VI)... /3 (2062, 3142)... iS (Pub. L. 0.ii)...A (i)... Doo- 
little (Pub. Flo'cver Obsy. l). . .] 



P 819. S.D. (4°)4I33 



R.A. 16'' 30" 26^ 
Decl. — 4° 55' 



1881.44 230.8 1.59 8. 6... II. 3 3« /3 

1888.60 231.3 1.59 8. 7... II. 5 3;/ Com 

Discovered with the 151^ -inch at the Washburn 
Observatory. 

[/S (xil) . . ./3-». . .Comstock (Pub. Washburn Obsy. vi). . . ] 



P 952. W= XVI. 938 



R.A. 16'' 31'" 9= 
Decl. + 37° 9' 



1880.48 146. 1 
1892.24 146. 1 
1898.67 144.8 



1892.24 244.3 
1898.67 233.5 



A and B 

3.85 8.0... 10. 3 3« ^ 

3.96 8.1. .. 9.3 3« )8 

3.78 8.0. . . 9.0 2« A 



B and C 



2.1 ■ 



2.58 



■•13-7 3" fi 

. . 14.0 271 A 



Discovered from iSyi to i8gg by S. W. Burnham 



153 



B was discovered with the i8j^-inch, and in 
measuring that with the 36-inch the third star was 
added. 

L/3 (xiii) . .. (33 . . ./3 {3142)... (3 [Pub. L. O. ii)...Aitken 
( )•••] 

P 820. Lalande 30279 



R.A. 1 6"^ 33'" 8' 



Decl. 



1881.35 237.6 
1888.50 233.1 
1892.38 237.4 



4.24 

4-3° 
4.28 



2' 52 



8.0. 



9-5 3'^ ^ 



7.8... 9.5 
7.8. . .10.4 



Com 
i8 



Discovered with the 151^-inch at the Washburn 
Observatory. The Radcliffe Catalogue for 1 890 
gives the proper motion of this star o"ii2 in the 
direction of 290?9. The measures show no relative 
change, and therefore this movement belongs to 
both stars. 

[/3 (xii).../34.../3 (3142)... /3 {Pub. L. O. ii)...Comstock 
(^Ptib. Washbttrn Obsy. vi). . .] 





p 


42 


. W 


^ XV L 


1076 










R. 


A. i6h 


35"" 20= 


f 










D 


;cl. + 


29° 15' 






1873-47 




39-3 




7-50 


8.5 


. . 9.0 


m 


02 


1874.40 


39-4 




6.80 


9 


. . 10 


\n 


WS 


1875.10 


41.9 




7-23 


16.0 . 


■ -10.5 


3" 


J 


1892.33 


41.9 




7.28 


8.8 


. . 9.1 


211 


/8 


1898.51 


40.2 




7-45 


9-7 


• • 9-9 


211 


Gl 



Discovered with the 6-inch. Probably fixed. 

[/3 (I). . .iS {Mon. Not. xxxin, 351). . ./S (3142). . .(3 {Pub. L. 
O.w). . .Wilson and Seabroke {j\lem. R. A. S. XLiii) . . . 
OS {^Poulkowa Obsns. x). . ./I (i). . .Glasenapp (v). . .] 



P 1 1 16. B.A.C. 5600 

R.A. 16'' 36"" 5i« \ 
Decl. — 27 ■ 14 ' ) 

o // 

1889.39 359-4 1-78 6. 7... 1 1. 7 3« /? 

1897.46 355.3 1.85 6+...12 3^/ A 

1897.48 356.7 2.21 6. 5... II. 2 \/i See 

Discovered with the 12-inch. In Scorpio; Gould 
6.8m. See measures a 14m star, i97?o:25."42 
(1897.48) I n. 

[^(xvi).../3 (2956)...Aitken (3465)... See (3496)...] 



P 953- O. Arg. X. 16454 

R.A. 16'' 37"" 21^ { 
Decl. + 70° 2' ') 



1879.27 


328.7 


0.30 


7.8.. 


. 8.3 


m 


P 


1891.42 


302.8 


0.12 


7.8.. 


. 8.5 


in 


/? 


1892.39 


298.1 


0.18 


8.0. . 


. 8.5 


Z" 


i3 


1898.27 


265.9 


0.32 


8.0.. 


. 9.0 


m 


^ 



Discovered with the 18^-inch. It was a very 
difficult pair with that aperture at the time of dis- 
covery, and is still more difficult since. It is a 
binary in rapid motion. The distance in the last 
measure (1898) is certainly too large. This is the 
s/> of two 8 m stars ; the other is 2 2^/ and i '40" «. 

r/3(xni)...j33.../3(3ii4,3i42)...j3(/'«,^. Z. O. 11)... 1 



p 1 199. [Messier 13) 



R.A. lah 37™ 235 
Decl. + 36° 41' 

B and C 



1890.45 239.4 0.88 II. 4... 12.0 3« /3 
1898.54 240.4 0.97 ... 2« Bar 



A and B 

1890.45 310.3 2.61 10. 
1898.54 308.1 2.76 



3" /8 
4« Bar 



One of the principal stars, and near the center, 
of the great cluster in Hercules (Messier 1 3) ; dis- 
covered with the 36-inch. The close pair is No. 
320 of Scheiner's Catalogue of the stars in M 13. 

[/3(xvii).. .i3(3047)...(3 {Pub. L. O. 11). . .Barnard ( )...] 



P 43- \V^ XVI. 785 

R.A. 16^ 42'" 19' \ 

Decl. + 2° 57' \ 



1874.43 


71.0 




0.95 


8 


.. 9 


\u 


WS 


1875.22 


246.5 




0.89 


8.7 


.. 8.8 


A'l 


J 


1878.54 


244.6 




0.9S 


8.5 


. . 9.0 


in 


Sp 


1892.38 


245-0 




1. 01 


8.2 


.. 8.3 


21t 


/3 


1898.64 


242. 8 




1.15 






\n 


Br 


Discovered wi 


th 


the 6- 


inch. 


Fixed. 







[iS (i).../3 {Mon. Not. xxxiii, 351)... /3 (3142)... /S {Pul>. L. 
O. 11). . .Wilson and Seabroke {Mem. P. .4. S. xi in). . . J 
(i)...Sp (II)... Brown ( )...] 



154 



General Catalogue of Double Stars 



P 627. 52 Herc7ilis 



1878.38 309.4 



1881.42 



36.6 



1884.23 306.2 
1886.33 307-6 

1892.24 318.7 
1896.49 317.3 



5.61 



;i4.5 



R.A. 16'' 


45 


"43^ I 








Decl. + 46 


"I2't 








;/ 
1.83 




5.0. . 


10. 5 


5« 


P 


1.76 




5 ■• 


10 


m 


Big 


1-99 








3« 


H2 


2.03 




5.1.. 


9-5 


8;/ 


En 


1.62 




5.0. . 


9-1 


i'l 


a 


1.82 




5.0. . 


9-5 


Aft 


Lv 


1.90 




5.0.. 


9-3 


y 


A 


h the I 


81. 


4-inch 


. The 


princip 



star has a proper motion of o!'o73 in the direction 
of 2 10? 7 (AuwERs). The measures indicate that 
this is common to both components, as otherwise 
there would be a much larger increase in the angle, 
with a distance of about 2^5 at the date of the last 
measures. Bigourdan measures two 12 m stars 
228?6 : 67!'oi, and 267^6 : I43!'i5 (1881.42) m. 

[/3 (x).../3'.../3(3i42).../3 {Pub.L.O.ll)..:^{Ast. &= A.-P. 
xi, 465). . .Bigourdan (Paris ObsHS. 1883)... Lv [A. J. 
407)...Aitken ( )...HS( )...] 



P 821. D.M. (32") 2799 



R.A. i6h 47™ 135 
Decl. + 32° 3' 



1881.43 313.6 1. 21 8.4... 8.9 3;/ fi 

1888.48 313.6 1.30 8.7... 9.5 yi Com 

Discovered with the i5j^-inch at the Washburn 
Observatory. 

[/3 (XII). . ./S't. . .Comstock (Pub. Was/iburn Obsy. Vl). . .] 



P 123. O. Arg. S. 16094 



R.A. lb*" 47"" 2(f 
Decl. — 21° 51 ' 



1877.42 203.5 1-67 8.5... 8.8 2'/ Cin 

1886.41 205.1 1.56 8.5... 8.5 \n W 

1892.48 203.9 1-57 8.4... 8.8 yi Lv 

Discovered with the 6-inch. Fixed. In S.D. 
8.0 m. 

[/3 (ill). . ./S (Mon. Not. XXXIV, 59). . .CinV . .Wilson (Cin") 
. . . Lv (A. J. 278) {Proc. Havetford Coll. Obsy. 1892) . . . ] 



P 241. Ophuichi 74 







R.A. \i3^ 48 


■"23= 












Decl. — 21 


°22'f 






1877.49 


337-9 


// 
0.57 


7.0. . 


- 7-1 


2« 


Cin 


1878.88 


345-1 


0.62 


7.0. 


- 7-0 


211 


Sp 


1879.06 


159.6 


0.63 


7.0. 


- 7-2 


211 


Cin 


1880.47 


341-0 


o.7± 






\n 


/3 


1881.55 


343-0 


0.65 


6.7. 


. 6.8 


Z" 


/8 


1884.38 


345-0 


o-5± 






\ti 


W 


1887.56 


165-3 


0.42 


7 - 


• 7 


\n 


Ho 


1888.56 


164.2 


0.6 


7.2. 


■ 7-2 


2« 


Lv 


1890.46 


160.0 


0-75 


7-2. 


• 7-2 


yi 


? 


1895.63 


162. 1 


0.71 


7-0. 


- 7-2 


3« 


A 



Discovered with the 6-inch. Change is uncer- 
tain. Lalande 30725. In Gould 6.8 m. 
[/3 (v).. .^ (Mon. Not. XXXV, 3i).../33.../34...^ (3048)... /3 
(Pub. L. O. II). . .Sp (II). . .Cin'*. . .Cins. . .Wilson (Cm") 
...Hough (2978). . . Lv'. . . Aitken (Ast. Soc. Pac. vil, 
305)---] 

P 1117. 24 Ophiuclii 



R.A. l6h 49" 34= 
Deck — 22° 57' 



1889.39 


264.2 


0.70 


6.4. 


. 6.5 


4« 


/3 


1889.63 


235-7 








\>i 


Ho 


1890.45 


264.3 


0.58 






3« 


/8 


1893.41 


269.9 


0.76 


6.0. 


. 6.2 


2)1 


W 


1893-50 


270.6 


0.56 


6.1. 


. 6.4 


2n 


Lv 


1897.47 


267.2 


0.62 


6+. 


. 6 + 


3« 


A 



Discovered with the 12-inch. It had been pre- 
viously seen by Hough, and appears as Ho 265 of 
his list of new pairs subsequently published. There 
is no material change in either angle or distance. 
This star has a proper motion of 0^027 in the 
direction of 265?9 (Auwers), and this is the move- 
ment of both stars; otherwise, it would have been 
discovered long before. 

[P (xvi) . . . i3 (2956,3048) . . . iS (Pub. L.O.u)... Hough (2977) 
. . .Wilson ( ). . .Lv (^. /. 382). . .Aitken (3465). . .] 

P 954. 54 Herculis 



R.A. 16" so"" 6= 
Decl. + 18° 38' 



1879.36 


175-4 


2.56 


5-0- 


.12.3 


3« 


/8 


1882.16 


14.2 


3.62 


5-0- 


. II. 


\n 


02 


1887.17 


178. 1 


2.81 




• 


S« 


H2 


1891.27 


174.9 


2.56 


5-5- 


.12.5 


3« 


/i 


1898.47 


175-8 


2.73 


5 - 


. 10.2 


2« 


D 



Discovered from iSyr to i8gg by S W. Burnham 



155 



Discovered with the 18^-inch. There is no 
relative change, but it must be a physical system, 
as the components have a common proper motion 
of of 1 19 in the direction of 282?! (Auwers)- If 
the small star was fixed, the change in the position 
angle to 1891 would be about 25? The measure 
by 02 is noted "very uncertain." 

[(3(xiii).../33.../3 ^2,116,)... ^ [Pub. L. (9.ii)...02 {Poulkowa 
Obsns. X ) . . . Doolittle ( Pub. Flower Obsy. I ) . . . HS 
( )-..] 



P 955- Redhill 2542 







R.A. 16" 


SS 


"^ 50' } 












Decl. + 


82 


= 3M 








1880.68 


348.0 


;/ 

0-54 




8.2. . 


• 9-5 


in 


/3 


1891.32 


352-0 


0.64 




8.1. . 


• 9-3 


VI 


i8 


1898.63 


351-0 


0.76 




8.2.. 


• 9-5 


yi 


A 



Discovered with the 18^/2-inch. It is 11' j- of e 
Ursac Minor is and 2'" 27^/. 



l^ (xm).../33.../3 (3ii4)...(3 (P„h. L. 0. u] 



. Aitken 





p 


822. h 


'er 


ci//is 


198 










R.A. 16'' 


58 


" 40' 


( 










Decl. + 


19 


° 51' 






1881.56 




228.0 


// 
1.50 




6.9. 


- -11-3 


yi 


/3 


1885.50 


215.2 


1.72 








2n 


HS 


1888.50 


230.9 


1. 81 




7.0. 


. . 10. 


3« 


Com 


1896.52 


228.1 


1.64 




6.8. 


. . 11.2 


3" 


Lv 



Discovered with the 15^4 -inch at the Washburn 
Observatory. The Berlin A. G Catalogue gives 
this star a proper motion of ofo36 in the direction 
of 29i?o, and the measures show that this is the 
movement of the small star. 

1/3 (xii). . .0''. . .Comstock (Pub. Washburn Obsy. vi)...Lv 
(^../. 407)...1IS{ )...] 



P 357- Lalande 31094 

R.A. 16'' 50'" sa"" ] 
Decl. -|- 10 ' 43' \ 



1875-56 


294.7 


I-I5 


8-3-- 


. 10. 


V 


J 


1876.50 


298.9 


1. 14 


7-8.. 


- 9 + 


\n 


02 


I882.54 


316.9 


1.69 


7-8. 


. 10 


\n 


02 



1885.52 


295-5 


1.56 






m 


H2 


1891.49 


302.5 


1.08 


8-4. 


- 9-4 


yi 


/3 


1895.50 


302.5 


1-31 


8.2. 


- 9-4 


3" 


A 


1896.51 


298.0 


1.20 


8-0. 


- 9-3 


I" 


Lv 


1896.53 


300.0 


0-99 






in 


Lew 



Discovered with the 6-inch. Change uncertain. 

[;8 (vi).../3 (2062,3114). ..iS [Pub. L. O. II)... J (I)... OS 
{Poulkowa Obsns. x)...HS( )... Aitken {As/. Soc. Pac. 
VII, 305)... Lv {A. J. 407)... Lewis {Mon. Not. LIX, 
400)...] 



P 823. Lalande 31 107 

R.A. 17'^ 0™ 29'^ ) 
Decl. +0° 49' \ 



I88I 


39 


353 


9 


1.04 


8.2. . 


9.2 


4« 


(i 


1888 


41 


357 


I 


1. 19 


8-5-- 


9-5 


3« 


Com 


1888 


52 


358 


2 




8.0. . 


9-3 


\n 


Lv 


1889 


48 


359 


8 


1. 17 


8.7.- 


9-5 


3« 


i3 


1893 


43 


361 


4 


1-15 


8.8. . 


10.2 


y 


W 


1895 


67 


366 


4 


0.85 


8.3.. 


9-4 


y 


A 


1895 


71 


363 


3 


0.97 






5" 


Sp 


1896 


49 


365 


3 


0-95 


8.0. . 


9-2 


V< 


Lv 



Discovered with the 151^ -inch at the Washburn 
Observatory. Direct angular motion is clearly 
established bv the measures. 

[/3(XII). ../S-*.. .i3(2957). . .^{Pnb.L. O.u). . .Coms\.ock {Pub. 
Washburn Obsy. vi) . . . Lv' . . . Lv {A. J. 407) . . .Wilson 
( ). . .Aitken {Ast. .Soc. Pac. vii, 305). . .Sp (in). . .] 



P 1088. [JL Draconii 







R.A. 


17" 2- 51^ / 






Decl. +54^38' ^l" 






B and C 







// 


1889.27 


190. C) 


I 2 


25 


1891.30 


189.7 


I 2 


20 


1892.36 


191-3 


I 2 


II 


1895.28 


190. 8 


I 2 


36 


I89S.62 


190.6 


I 2 


33 


1899.44 


193-2 


12 


33 



' J-.^ 



3" 


/? 


y 


a 


y 


a 


y 


Bar 


y 


A 


1// 


n 



A and R (= 2 2130 = H ' IL 13 = Sh. 242) 



1836.79 202.8 
1854.26 18S.3 



3-04 



156 



General Catalogue of Double Stars 



1858.23 


185. 1 


2.78 


1863.57 


182. T 


2.62 


1871.29 


178.5 


2.62 


1877.42 


169.7 


2.64 


1883.63 


165.0 


2.66 


1889.27 


159-4 . 


2.40 


1894.66 


154.6 


2-39 


1898.50 


149. 1 


2.41 



yi 


0% 


■]n 


J 


3« 


02 


5« 


HI 


6;/ 


En 


4« 


i8 


m 


Com 


6n 


D 



The faint star, C, was detected with the 36-inch 
The bright stars, A and B, have the same proper 
motion, according to Auwers, of o!i26 in the 
direction of 308? 2. With this movement of B, 
and the position of the companion from the meas- 
ures of 1889, if C was fixed in space, its relation 
to B at the date of the last measures in 1898 should 
be 186:2 :i2f83. It seems practically certain, 
from the measures taken together, that no such 
change in C has taken place, and that, therefore, 
the new star is a member of the physical system. 

On the accompanying diagram the measured 
positions of C from the several places of B in the 
line of its proper motion are shown : 




^0^ 



t- 



lU Scale of P.M. 



ij'' Scale of Distance. 



Proper motion of /i Draconis and Companion. 

[^ (XIV). . .(i (2875,2929,3114,3142). . .ji [Pub. L. O. n) {Mon. 
Not. Lvii, 547) . . .Barnard {A.J. 447). . .Aitken ( )■ ■ ■] 



As a double star this is known as S 2130 (= H' 
II. 13 = Sh 242). It was discovered by Herschei, 
I. 1779 October 17, and, as the distance was be- 
tween 4" and 8", it was placed in his Class II. 
Both angle and distance were measured, and the 
latter recorded as 4*354 "mean measure" {Phil. 
Trans. 1782). In his "Synopsis" of his father's 
double-star observations i^Mem. R.A.S. Vol. xxxv) 
Herschel II. gives this distance as 4*69, and the 
date a few days later than that in the original pub- 
lication, and the date of the measure of the posi- 
tion angle as 1781.73. The latter would seem to 
be a mistake, since Herschel I. has only the sin- 
gle observation of 1779 October 19 in his first 
catalogue above referred to. There may be 
some warrant for this in the original MS., and 
for increasing the distance to 4^69; but the 
smaller distance value is used in Herschel and 
South' s Catalogue of 1824, and in the early meas- 
ures of Dawes and other observers. I have 
used here the original values of both distance 
and epoch. 

In 1804 Herschel recognized the angular mo- 
tion, and said: "The stars being of nearly equal 
magnitude, we can have no inducement to suppose 
them to be at very different distances from us." 
Struve made measures of it in 1819 and 1821 
before the commencement of the work recorded in 
Meiisurcc Micrometrica, and South and Herschel 
have a single observation in 1821. After citing 
the previous measures, the latter observers say : 
"No doubt, therefore, can remain of the reality of 
an angular motion in this star, as announced by 
Sir William Herschel in 1804; and the obser- 
vations here brought together prove it to have been 
hitherto nearly uniform, and averaging o?579 per 
annum in the direction iipsf,or retrograde. There 
can be little doubt of its being a binary system — 
a miniature of a Gemuioruin." 

Systematic work on this star was commenced by 
Struve in 1828, and since that time there is no 
lack of carefully made reliable mean results from 
measures on different nights down to the present 
time. The retrograde motion recognized by the 
early observers has steadily continued, accompanied 
with a slow diminution in the distance. According 
to Struve, the magnitudes of the components are 
5.0 and 5.1. 

On the accompanying diagram I have given a 
careful selection of the best measures by the prin- 
cipal observers for the last hundred years. The 



Discovered from i8yi to i8gg by S. W. Burnham 



157 



270 




BQh- 



follovving dates and observers are represented by 
complete measures of angle and distance : 



I78I 


m 


H' 


1820 


111 


2 


I82I 


in 


Sh 


1828-36 (4) 


lyi 


5 


1840 


6;^ 


Da 


1848 


m 


Da 


1855 


15^' 


J 


1858 


y 


J 


1863 


1" 


J 


1866 


6ti 


J 


1868 


in 


Du 


I87I 


\\n 


02, Du 


1872 


1" 


J 


1875 


7// 


Du 


1876 


3« 


Jed 


1877 


in 


Hall 


1879 


3« 


Jed 


1883 


ion 


Per, En, Jed 


1885 


7« 


Hall, Per, Jed 


i886 


3^' 


Jed 


1888 


3« 


Maw 


1889 


10;/ 


/?, Hall, Maw 


1893 


■jn 


Leavenworth, Comstock 


1895 


ion 


See, Collins, Comstock 



It is evident that the distances in the early meas- 
ures of Struve, and Herschei. and South, 1819 
to 1821, are too large, or that the distance in 1781 



is too small. The later measures of Struve appear 
to show that his previous measures of distance were 
much too large, and he seems to have considered 
them as not very reliable, since thev are not men- 
tioned in Mensitra Micronie/riciE. 

One orbit has been computed for this svstem. 
Berberich {Jstr. Nach. 2582), from an examina- 
tion of the measures down to 1883, found a period 
of 648.0 years. As in all double stars as wide as 
this, and as easy of measurement, where the 
observed arc is short, the various measured posi- 
tions are well represented by the apparent orbit ; 
and, so far as the agreement between the observed 
and computed places is concerned, there is nothing 
for unfavorable criticism ; but it is obvious enough 
from even a casual inspection of the diagram that 
the data are altogether insufficient for even the 
roughest approximation to the apparent ellipse and 
the elements of the real orbit. Indeed, as misfht 
be expected, the measures since 1883 are steadilv 
leaving the computed positions. The chances are 
that the relative change will hnallv resolve itself 
into orbital motion ; but, judging from the motion 
in the last hundred years, it will be a verv long 
time before anvthing uiore than the bare fact of 
physical connection can be established, to sav 
nothing about the details of that relation. 

By way of showing how easily these positions 
are represented bv orbits wholly unlike in all 
respects, I have given on the diagram two of the 



158 



General Catalogue of Double Stars 



many which could be found. So far as the observed 
arc is concerned, these figures are practically iden- 
tical, and represent all the measures down to 1883 
as well as, if not better than, the computed orbit, 
and the six later positions are much better repre- 
sented. Herschel's distance is practically per- 
fect, and the angle requires a correction of only 
2? 8, which is much less than the probable error of 
measures made in the last century. The ellipse 
with a major axis of 5f88 gives a period of about 
280 years, and the circle with a diameter of 9fi6 
a period of 11 90 years, the eccentricity in the 
one case being 0.84, and zero in the other. Of 
course an almost infinite variety of conic sections 
could be shown which would be equally satis- 
factory, so far as the measures are concerned. — 
Monthly Notices R. A. S. LVII, 547. 

A few only of the measures of AB are given, 
all will be found in the following : 

[Madler (324) {Fixsiern-Systemel) {Dorpal Obsns. xi, xill, 
XV) . . . Herschel (Mem. R. A. S. v). . . Mitchell (Cin^) . . . 
Wrottesley (F/iit. Trans. 1 851) [Mem. R.A.S. xxtx). . .Miller 
(806). . .Fletcher [Mem. R. A. S. xxu) . . . Oisns. at Bishops 
Obsy. . . .Dawes {Mem. R. A. S. vill, xix, xxxv) . . . Greenwich 
Obsns. 1840. . .Kaiser (1519) [Anjialeti der Siern-Leidejz, III) 
. . .Winnecke (1738) (Ast. Beob. Ster7i. zu Berlin, v). . . Obsns. 
at Barclay's Obsy. 11. ill, iv. . .Secchi (1614) {Cat. 1321 Stelle 
Doppie) {Serie Seconda delle meszire microm. Coll. Rom. 1863- 
bii) . . . Radcliffe Obsns. XXll, xxvil, xxix, xxxil. . .Annals 
Harvard Obsy. XIII...Duner {Mes. Microm. Lund, 1876)... 
Ball {Dunsink Obsns., Part 5)...Brunnow i^Diuisiitk Obsns., 
Part 3). . . Plummer {Oxford Obsns., No. l) . . . Flammarion 
{Etoiles Doubles et Multiples). . .Gledhill {Mem. R. A. S. XLIl) 
. . .Wilson and Seabroke {Mem. R. A. S. XLll, XLiil, XLVI, i,) 
...Engelmann (1674,2677) .. .Pritchett {Pub. Mori-ison Obsy. 
l) . . .Bigourdan {Paris Obsns. 1883) {Bui. Ast. XNlu) . . .Sta.- 
grave {Sid. Mess. U, 22) .. .Doh^rcX!. (2092,2198,3023) {Trans. 
R.I.Acad. XXVI, xxix)...OS {Poulkowa Obsns. ix) . . . A (i, 
11) . . . A (1032,1115,1474,1735,2081) ... Jedrzejewicz (2369, 
2772). . .Goldney (2557). . .Berberich (2582). . .Kustner (2584) 
...Perrotin (2529) {Nice Obsns. n)...deBoll (2753) .. .Tar- 
rant (2866). . .Knorre and See {Beob. Berlin, No. 6, 1892). . . 
Jones {A.J. 312) {Proc. Haverford Coll. Obsy. 189 1, 1892). . . 
Hall (l, II) {Wash. Obsns. 1885). . .Maw {Mem. R. A. S. L, Li, 
Llll). . .Searle {A.J. 299). . .Glasenapp (ill). . .Collins {A.J. 
378). . .Comstock {Pub. Washburn Obsy. x). . .See {A.J. 359) 
...Lv {A.J. 382). ..Morgan {A.J. 439). . .Doolittle {Pub. 
Flo%ver Obsy. 1) . . . ] 



P 1118. T| Opliiuclii 

R.A. 17'' 3"" 30^ / 
Decl. — 15° 34' \ 



1889.39 
1890.45 



274.7 
271. 1 



0-35 
0.38 



3-4. 



3-9 






/? 
/? 



1892.40 


270.0 


0.36 






3« 


/8 


1896.52 


259.8 


0.38 


4.0. 


■ 5-0 


yi 


Lv 


1897.47 


259.1 


0.40 






An 


A 


1897.48 


260.7 


0-53 


3-8. 


• 3-8 


\n 


See 


1898.55 


256.7 


0.52 






V' 


/3 


1898.28 


250.7 


0.50 


3-5- 


. 4.0 


Ml 


A 


1899.37 


253-8 


0.47 


3-5- 


■ 4-1 


4« 


A 



Discovered with the 36-inch. As this star has a 
proper motion of o!o97 in the direction of 2? 6 
(AuwERs), it was certain at the time of discovery 
that it was a binary svstem, since the components 
must be moving together, or it would have been 
discovered before. So far the relative motion is 
not as rapid as would be expected in a pair of this 
class. At present the retrograde movement is 
about 2° per annum. It is probable that the dis- 
tance is very nearly maximum. 

The followina: are measures of two distant stars 
in the field : 

AB and C 

1898.56 142.5 93.41 ...13 in /3 

. AB and D 
1898.56 288^6 99^78 ...1 1-5 yi /8 

[j3 (xvi). . ./3 (2912,2956,3048,3142). . ./3 (Pub. L. O. II). . .Lv 
{A.J. 407) . . . Aitken (3465) ... See (3496) . . . Aitken 
( )...] 





P 


124. Lalande 3 


1224 










R. 


A. 17'' 4'" Or- 


\ 










Df 


icl. — 0° 36' 


\ 






1874-43 


263.0 




o.9± 8 . 


. . 10 


m 


WS 


1875. II 


253-5 




1. 12 7.3. 


..10.3 


3" 


J 


1879-37 


263.2 




1. 15 8.0. 


--10.5 


11! 


Cin 


1881.42 


266.3 




0.94 7.0. 


. . I I.O 


211 


/8 


I89I.7I 


266.8 




0.94 7.2. 


. . I X.2 


211 


iS 


1892.64 


267.9 




0.85 




Ml 


Sp 


Discovered with 


the 6-inch. 


Change 


is 


uncer 


tain. 















[|3 (hi). . .(3 {Mon.Not. xxxiv, 59). . ./3-t. . ./3 (3114) . . ./3 {Pub. 
L. O.w). . .A (i). . .Wilson and Seabroke {I\Iem. R. A. S. 
xriii). . .Cin5. . .Sp (ill). . .] 



Discovered from iSji to i8gg by S. W. Burnham 



159 



P 956. O. Arg. S. 16420 



R.A. I7h 4™ 10 
Dec). — 26' 33' 



1880.51 


163. 1 


0.63 


8.0. . 


• 9-7 


211 


iS 


1893.49 


161. 1 


0.76 


8.0. . 


. 8.5 


\n 


w 


1897.65 


163-3 


0.58 


7-5-- 


. 8.5 


m 


See 



This difficult pair was suspected with the 6-inch 
in 1873 at the time of the discovery of y8 125, and 
referred to in the note to the latter pair. It proved 
to be a very difficult object to verify, although it 
was examined many times with both the 6 and 
1 8 1^ -inch refractors. Finally in 1880 it was fairly 
well seen and measured with the larger aperture. 
This star is 3'" 49' p and 8' i' of the well-known 
pair, 36 Ophiuchi. fi 125 is 20' s. 



(§ (xni). . .|33. . ./3 (Mon. Not. xxxiv, 63). 
Wilson ( )...] 



P 125. B.A.C. 5789 



R.A. 17I' 4'" 4:^5 
Decl. — 26° 53' 



■ See (3496)- 



1877.42 62.9 

1880.51 68.3 

1889.47 61.3 

1897.65 67.1 



1.74 ^7.2 ... II. o 2/1 Cin 

1.56 7.9 . . . 10.9 211 y8 

1.48 7.9 . . . lo.o yi 13 

1.65 6.6 . . . 10.2 2Ji See 



Discovered with the 6-inch. Further measures 
are necessary to show whether or not there is any 
relative motion. It is 3™ 16^/ and 28' j- of 36 
Ophiiiclii. /3 956 is 20' //. 

[|3 (ill). . .p (Moil. A'W. XXXIV, 59). . ./33. . .(3 (2957). . ./3 (Pub. 
L. 0. ]l)...Cin<. ..See (3496)...] 



P 1247. Lalande 31296 

R.A. I7'> 7'" 3^ ^ 
Decl. — 9" g' \ 

O II 

1891.48 345.5 1.62 8.0... TO. 3 4J1 13 

1897.60 339.6 1.39 7-I-...10+ 3// A 

Discovered with the 36-incii. 
I/a (xviii)...|a (3ii3).../3 (/'„i. L. aii)...AilUon (3465). 



p 282. .S.D. (14)4583 









R.A. 17^ 


8"'3i^ 


\ 










Decl. — 


14' 27' 


\ 






1875.41 




I54-I 


II 

4-23 


6.7. 


. .11.8 


3" 


A 


1879-55 


153 


2 


3-31 


7-5- 


.11.0 


7;; 


Cin 


1879.81 


154 


8 


3-94 


6.2. 


.11.6 


3« 


H 


1880.44 


153 


I 


4-25 


6.0. 


.10.5 


in 


Cin 


1881.42 


151 


7 


4.41 


6.6. 


.11.1 


y 


H 


1889.42 


151 


9 


4-31 


6.3- 


.11.3 


3« 


ft 


1896.57 


153 


7 


4.28 


. . 




211 


Hu 



Discovered with the i8j^-inch. Evidently un- 
changed. This star, considering its brightness, is 
singularly missing in sotoe of the star catalogues 
covering this region. Magnitude in Lamont 5, 
Gould 6.3, and S.D. 6.4. The Cincinnati obser- 
vers thought the principal star was a close pair. I 
have examined it many times under favorable con- 
ditions with apertures of 15^^, i8j^, and 36 inches, 
and am satisfied that it is not double. 



[i3 (v).../3 [Moil. No/. XXXV, 31). 
(Pub. L. O. ll)...Cin5. ..Cin<^ 
397)---] 



(I). 



■■P (2957).../? 
. Hussey (A. J. 



P 957- Lalande 31341 



R.A. I-'' 8"" 58= I 



Decl. 



10" 10' 



1880.16 


203.6 


0.58 


7.9.. 


• 7-9 


3'' 


ft 


1887.74 


194-5 


o.4±: 






S» 


Sp 


1888.54 


199-5 


o-5± 


8.0. . 


. 8.0 


1)1 


Lv 


1889.50 


201.7 


0.47 


8.2.. 


. 8.4 


V 


ft 



Discovered with the 18^-inch. Apparently with- 
out change. 

[/3 (xni)...^3...,3 (2957)... ;3 (Pub. L. O. 11)... Sp (111)... 
Lv^..] 





P 


95 


5. Lalande 31 


.=14 4 










R 


A. 17" 


9"' 25^ I 












D 


;d. — 


IQ)" 12' \ 















// 










1880.52 


221.0 




1.38 


8.3-- 


8.8 


2« 


ft 


18S8.45 


216.2 




1-37 


8.3.. 


9.2 


Ml 


I.v 


1892.39 


216.9 




1.3S 


8-3.. 


8.7 


3" 


ft 


IS97.66 


212.6 




1.6 1 


S.5.. 


0.1 


\)l 


See 


1 898. 44 


213.6 




1.66 


8.7.. 


9.0 


3" 


A 



i6o 



General Catalogue of Double Stars 



Discovered with the r8j4-inch. Without sensi- 
ble change. 

[/3 (xiii).. ./33.../^ (3142)... (3 {Pub. L. O. ^)...Lv^..See 
(34g6)...Aitken( )...] 



P 44- D.M. (28°) 2697 

R.A. 17'' 9™ 12'' } 
Decl. + 28° 57' S 



1874.98 
1875.01 
1892.48 



20.9 
18.6 
19.2 



5.51 7.8. .. 9.5 2;/ 02 
5-33 9. 2... 10. 5 4« J 
5.54 8.4... 9.5 3// Lv 



Discovered with the 6- inch. Unchanged. 

[j3 (i). . .^ {Mon. Not. xxxill, 351). . .OS {Poulkoiua Obsm. x) 
...A (i)...Lv {A.J. 278) {Proc, Haverford Coll. Obsy. 
1892)...] 





p 


1119. 


B.A.C. 5820 






R.A. 17" 


9™ 40^ ) 
30° 2' \ 






Decl. — 


1889.40 


355-8 


0-75 


7.0. . . ' 


1897.60 


357-5 


0-54 




1897.66 


353-7 


0.56 


7.5... < 



7-6 



3« /3 
3;/ A 
I /I See 



Discovered with the 12 -inch. 

[/3 (XVI). . .^ (2956). . ./3 {/'?/^. L. O. II) 
See (3496)...] 



.Aitken (3465).. 



P 416. Scarpa 185 







R.A. I7h 


10" 47^ 












Uecl. — 


34' 51' s 










A and B 






1876.52 




240zt: 


i.8dz 


6.0. 


. 8.0 


m 


/3 


1877-53 


222.6 


1.80 


7.0. 


. 8.0 


111 


Cin 


1877.64 


224.4 


1.97 


7 ■ 


• 9 


\n 


Rus 


1888.72 


147-5 


1.89 


6.0. 


■ 7-5 


\n 


/? 


1889.43 


134-I 


1.35 


6.4. 


■ 7-5 


yi 


y8 


1889.63 


131-9 


0.97 


6 . 


. 8.5 


m 


Pol 


1890.60 


122.0 


0.82 






111 


Sel 


1891-53 


82.3 


0.51 


6.9. 


. 7-6 


3« 


/? 


1892.38 


24.4 


0.58 


6.0. 


. 8.3 


4;; 


^ 


1893-55 


348.3 


0.71 






5« 


Sel 


1894.56 


334-5 


1.30 






5^ 


Bar 


1894.57 


331-8 


0.88 






7« 


Sel 


1895.60 


321.7 


0.91 






2)1 


Com 



1895.62 


322.2 


1.43 


6.0. 


. 7.6 


y 


Sel 


1895.74 


321.4 


0.99 






m 


See 


1896.44 


314.8 


1.45 






3« 


A 


1896.46 


315.4 


1. 61 






V> 


Scott 


1896.59 


315.8 


1.87 


6.0. 


. 7.2 


A» 


Sel 


1896.60 


314.9 


1.26 






\n 


Com 


1897.38 


307.0 


1.69 


7.1. 


. 8.2 


m 


See 


1897.46 


309.1 


2.00 






VI 


A 


1897.47 


308.8 


1.80 






9' 


Sc 


1897.47 


310.2 


1.86 






\n 


Lehman 


1898.35 


303.S 


1.99 


6.5. 


. 7.3 


4« 


A 


1899.38 


300.2 


1.83 


6.4. 


• 7-1 


a,)i 


A 



A and C (= H 4935) 



1837 


i3o± 




1876 


i3o± 




1877.64 


132.4 


. . . 


1889.43 


128.6 


31.03 


1891.53 


128.8 


30.52 


1892.36 


129.4 


30.55 


1894.61 


129.4 


30.01 


1895.58 


130. 1 


30.50 


1897.38 


129.3 


29.98 


1898.41 


130.4 


30.22 





\n 


H 


10 


\n 


i8 




\n 


Ru 


10.5 


y 


^ 


12 


y 


P 


12 


211 


a 




\n 


Bar 




Ml 


Coin 


12.8 


111 


See 


1 1.2 


211 


A 



The duplicity of the principal star of the wide 
pair, H|4935, was discovered with the 6-inch. This 
is now known to be one of the most interesting 
and remarkable systems in the heavens. In the 
twenty-two years following the discovery of the 
close pair the companion has passed over an arc of 
about 300°, and a whole revolution will soon be 
completed. Several orbits have been computed. 
The dates in the first column give the last measures 
used. 



)2 Gore 

)2 Glasenapp 34.85 



1892 Burnham 24.7 

1893 Glasenapp 32.23 



See 



34.48 years Mo/i. Not. LIII, 

335 

Ast.&'A.-P.Xll, 
402 

Pub. L. 0.11,2^'] 

Proc. Soc. N. S. 
Wales, June, 
1894 

Evolution of the 
Stellar Sys- 
tems, I 



33.0 



The first three orbits, which are based upon the 
same measures, are shown on the accompanying 
diagram (marked respectively A, B, and C repro- 



Discovered from iSji to iBgg by S. W. Burnham 



i6i 



duced from Pub. L. O. ii, pp. 245, 247). It will 
be seen that the first ellipse best represents the later 
measures. 

This system is of additional interest by reason of 
its large proper motion of if 15 in the direction of 
98?! (Porter). This movement and the rapid 
angular motion in connection with the compara- 
tively large apparent distance betweert the compo- 
nents, suggests the possibility of this system having 



a considerable parallax. This should be investi- 
gated by observers in the southern hemisphere. 

In Fig. 2 I have given the principal measured 
positions down to 1899. While the general form 
of the apparent orbit is fairly well indicated, an 
investigation of this time could give only a provis- 
ional value. A revolution will soon be completed, 
and then a reliable determination of the elements 
can be made. * 




The distant star, noted by Herschel at the Cape 
of Good Hope, was not ujeasured by him, and the 
angle only estimated from a diagram. The fore- 
going are all the measures I have found of this 
star. The measures since 1889 show bevond cjues- 
tion that this star is moving in space with the close 
pair, and that the three form a triple system. See 
measures a 13.2 m star 86?i : 55.''42 (1S97.38) \n. 

The principal star is B.A.C. 5825 (= Lacau.le 
7213). The different estimates of magnitudes are 



not very accordant; in B.A.C. 6; Gould 6.1; 

Y.\RN..\LL 7.0; Cape 7.6. 

[i3 (vii).../3 (2i03,2957,3ii4,3i4--i)-.-/3 (P"l>. L. 0.\^^...^ 
{Sii/. A/ess. X, 489) (Wrf. ^7= A. P. xn, 792) . . . Russell (/>«/-. 
Syi/iiey Ohy. 187 1-81 ).. .Cin^ .. Pollock {Pub. Sydney 
Obsy. 1891) {Mem. R. A. S. l). . .Sellors (3154,3240.3274, 
3303,3369) . . . Barnard {A. J. 447) . . . Conistock {Pub. 
Washburn Obsy. x). . .See {A.J. 359.372.37^) . . .See (3496) 
. . .Lehman {.4st. Soc. Pac. IX, 141). . .Eveietl {JMon. Aol. 
LVI, 464)... Scott (Brit. As/. Asso. VIII, 66) {Mom. A'ot. 
Lix. 427). . . Innes {A.J. 385) (.)/<)//. Xot. Lvm, 90)... 
Aitken (3396,3465.3585). . .Aitken ( )...] 



l62 



General Catalogue of Double Stars 



iho" 



IS77.5 



-2=^^ 



1889,4 



1897.4 # 



_1 ] I L. 



Scale 



■2.0 
_J 



/3 416. Fig.2. 



P 1200. Lalande 31421 







R.A. 17'' 11"' 5= ) 












Decl. + 14° 49' \ 








1890.44 



12.6 


It 
1.42 7.8.. 


. 12.2 


yi 


iS 


1896.46 


14. 1 


1. 21 




211 


Lew 



Discovered with the 36-inch. The/ of two 8 m 
stars, same declination, and t^t^ apart; near a He?-- 
culis. 

[/S (xvil). . .^ (3047). . ./3 {Pub. L. O. 11). . .Lewis {Mo7i. Not. 
Lix, 400). . . J 



P 126. Piazzi XVIL 43 

R.A. 17'' 12"" 54= ) 
DecL — 17° 38' \ 

A and B 



1875. II 261.3 
1877.41 260.6 



i.74 6.4... 7.5 5;; J 
1.58 6.7 .. . 8.0 2« Cin 



1879 


27 


260.8 


1-77 


60. 


. . 7.0 


in 


Cin 


1879 


54 


261.3 


1.24 


6.5 


.- 8.5 


271 


/8 


1879 


58 


261.9 


1.81 


6.2 


•• 7-5 


4;/ 


Sp 


1884 


41 


261.5 


1.94 


7-0 


.. 8.2 


2« 


W 


1887 


69 


261.5 


1-59 


6.5 


.. 8.0 


I« 


Ho 


1888 


54 


263.4 


1.89 


6.2 


.. 8.3 


211 


Lv 


1890 


50 


262.8 


2.20 


6.1 


.. 7.4 


271 


GI 


1892 


37 


262.0 


1.67 


6.2 


.. 8.5 


VI 


^ 


1897 


29 


261.0 


2.20 






2« 


D 


1897 


45 


262.4 


1.66 






2tl 


So 






A ar 


d C 








1879.27' 



140.4 


// 
11-59 




. . 10. 


111 


Cin 


1879.54 


139-7 


11.49 




. .11.7 


271 


/3 


1887.69 


138.2 


II. 12 




. . 12 


171 


Ho 


1892 


37 


138.9 


11-59 




. . 12.0 


3" 


)8 



The close pair was discovered with the 6-inch, 
and the third star subsequently added with the 
i8j^-inch. The measures show no change in 



Discovered from iS'ji to i8gg by S. W. Burnham 



i6- 



either companion. This is a naked-eye star in 
Ophiucus; Gould 6.i ra. B.A.C. 5839. 

[(3 (in). ..j3(y1/o«. AV. xx.xiv. 59). . ./33. . .(3 13142). . ./3 (Pub. 
L. 0. II)... J {l)...^ (2086). . .Cin". . .CinS. . .Lv'. . . 
Wilson (Cin'°) . . ..Sp (il). . . Ilougli (2978). . . Glasenapp 
(l)... Scott (Brit. Ast. Asso. vm, 66). . .Doolittle [I'nb. 
Flower Obsy. l) . . . J 





pe 


29. D.M. 


(32° 


)2 






R.A. 17'' 13 


n qS 


) 






Decl. + 32 


J2' 


1878.40 


345°8 


0.99 


8.3- 




1890.62 


340.9 


1.05 






I89I.3I 


343-8 


1. 01 


8-5- 




IS92.39 


343-9 


1.02 


8.4. 




1895.56 


343-8 


0-95 






1898.65 


344-1 


0.97 






1898.70 


34I-I 


1.20 







9.0 271 


iS 


in 


Sp 


8.8 yi 


/? 


8.7 y, 


/? 


in 


Sp 


2n 


Bow 


2« 


Bry 


L. No sensible 



Discovered with the 18^-inch. 
motion. 

[|3 (x)...,3'.../3 (3114,3142) (P/.^. Z. O. II)... Sp (III)... 
Bowyer and Bryant (Mon. Not. Lix, 400). . .] 



P 127. Lalande 31454 







R.A. I7'> 


13'" 25^ 


{ 










Decl. — 


27° 13' 


\ 






1876.51 




95-3 


// 
5.26 


8.2. 


. . 9.0 


2n 


Cin 


1877-53 


93-8 


5.16 


8.5. 


• - 9-5 


m 


Cin 


1879.47 


93-7 


4-85 


8.0. 


.. 8.5 


1// 


Cin 


1890.42 


97-1 


4.9 T 


8.8. 


.. 9-6 


2n 


Gl 


1896.52 


86.4 


5-27 






2/: 


Sc 


1897.49 


93-2 


4.92 


7.8. 


.. 8.7 


m 


See 


1898.47 


93-0 


5-04 


8.2. 


• ■ 9-5 


y 


A 



Discovered with the 6-inch. .Apparently un- 
changed. 

|8 (III). . .j3 (Mon. Not. XXXIV, 59). . .Cin3. . .Cin-*. . .CinS. . . 
Glasenapp (l)... Scott (Brit. Ast. Asso. vm, 66j...See 
(3496)...Aitken (35S5)---1 



P 45- \\-X\il.345 

K.A. 17" I3">29^ / 
Decl. +32^ 37' \ 



1873-47 


289-3 


5-04 


8.0. 


■ 8.5 


Ml 


02 


1874.43 


287.0 


4.84 


9.0. . 


• 9-5 


Ml 


ws 


1875-05 


289.9 


4-83 


9.7. . 


■ 10.3 


V> 


J 



1892.40 2S9.8 4.98 



8.6. 



8.8 



Discovered with the 6-inch. No relative motion. 

1/3 (i)...i3 (Afc«. A^£7/. XXXIII, 351).. .^ (3142)...^ (Pub. L. 
O. \l)...A (l). . .Wilson and Seabroke (Mem. R.A. S. 
xi.Ill). . .OS {Paiil/.-o7ua Obsiis. xj . . . ] 





p 


628. W=^XVII. 


359 










R.A. 17'' 13"' 55' 


} 










Decl. + 32''47 ' 


\ 






1878.41 


365-°6 


0.54 9.0. 


■ 9-5 


m 


P 


1889.69 


358.9 


o.4± 




m 


Sp 


1892.30 


358.6 


0.52 8.7. 


■ 9-3 


y 


H 


1892.64 


362.9 


o.5± 




i/i 


Sp 


1895-51 


361.5 


o.35± 




m 


Sp 


1898.71 


354.2 


0.46 




iJi 


Br 



Discovered with the i8i^-inch. This pair, )3 45, 
^629, and fi (^2,° are all in the same vicinity, and 
near 68 Herciilis (OS 328). 

[iS (x). . ./3'. . ./3 (3142). . ./3 (Pub. L. O. II). . .Sp (in). . .Brown 
( )...] 



P 630. D.M. (32°) 2891 

R.A. 17'' 14" 46^ ] 
Decl. + 32° 28' \ 



1878.40 


225.4 


1.66 


8.7.. 


.10.7 


2n 


a 


1892.33 


224.8 


1-45 


8.5. 


. 9.6 


y 


/8 


1898.65 


225.1 


1.42 




. 


2« 


Bow 


1898.71 


221.9 


1-55 






2« 


Bry 



Discovered with the i8j2-inch. Apparently no 
change. 

[/3 (x). . ./3\ . .|8 (3142)... /3 (Pub. L. O. ii)...Bowyei- and 
Bryant (Man. Not. Lix, 400). . .J 



P 959. Op hi lie hi 185 



R.A. 17" 16"' 9^ I 
Decl. + 5' 7' \ 



1879.54 254.7 

1879.88 258.7 

1891.48 257.3 

1898.67 256.0 



3-87 
3.26 

3.15 
o-5o 



7.0. . . 10. o 



.1 . . . I 2.0 



Ml 



Cin 
Br 



Discovered wilh the 18'.. -inch. There is no 
relative motion. L.m.anuk 315S8. 

\ti (Xlii). . ./3'.. ./3 (3114). . ./3 (Pub./.. O. Il)...Cin5. . .Brown 
( )...l 



i64 



General Catalogtce of Doiible Stars 



■ P 1248. D.M. (4 ) 3406 

R.A. 17'^ 16™ 31= \ 
Decl. + 4° 29' \ 

o // 

1891.46 165.4 8.49 8.0... 9.3 3« ^ 
1897-57 164.4 8.08 8 ...10 211 A 

Discovered with the 36-inch. 
[/3 (xvni). . ./3 (3113). . .i3 [Fub. L. 0. 11). . . Aitken {3465). . .] 





P 


242. Lalande 3i( 


5io 










R.A. 17'^ 


17'" 21= I 












Decl. — 


11° 35' S 












A and B 








1875.92 


68°9 


// 
0.96 


8.2.. 


9.0 


Sn 


A 


1879.60 


73-6 


0.92 


8.0. . 


9.0 


yi 


Sp 


1888.50 


74.0 


0.99 


8.0.. 


9-3 


\n 


Lv 


1892.48 


70.9 


0-99 


8.2. . 


8.7 


3« 


Lv 


IS98.63 


73-4 


0.83 






in 


Br 






AB and C 








1876.01 



63-4 


8.90 


, . 


I I.O 


^11 


A 


1888.50 


64.6 


9.66 




1 1.2 


-ill 


Lv 


1892.48 


62.0 


9.04 




II. 


in 


Lv 


1898.63 


62.5 


9.62 






\n 


Br 






AB and D 








1876.01 


63-8 


// 

47.46 


, . 


10.4 


4" 


J 


1892.48 

i8q8.6^ 


64.8 
6r6 


47-83 

47. Q2 




10. 


in 
m 


Lv 
Br 



Discovered with the 6-inch. The measures show 
no change in any of the companions. 

[/3(v). ..^[Mon. Not. xxxv, 31).. .A (i). ..Sp (11). . .Lv^. . 
Lv [A. J. 278) {Proc. Haveyford Col. Ohsy. 1892) . . .Brown 
( )-..] 

P 1284. D.M. (is°) 3173 



R.A. 17'^ 


17- 38= 1 








Decl. + 


15° I' \ 








i-5± 


8 .. 


. II 




/8 


1.20 


8.0.. 


-14 


i/i 


Lew 


1.23 


8.3.. 


.11.3 


3" 


/3 



1884.61 i8oib 
1896.53 182.2 
1899.42 180. 1 

This pair was discovered with the 18^ -inch 
August II, 1884, but not included in my cata- 
logues of that time. It was looked for with the 



36-inch in 1 891 and not found, but it now appears 
that the declination used was 10° too small. In 
the measures by Lewis {Mon. Not. Lix, 400) this is 
called /3 46. There is no indication of change. 

P 46. W XVII. 296 



R.A. 17'' 18™ 7= \ 
Decl. + 13° 31' \ 



R 
Dec! 



1874.43 
1875.01 
1883.68 
1892.49 

1894-53 
1898.64 



I92zb 

203.0 

201. 1 

202.6 

203.2 

205.4 



2.7± 

2.15 

2.00 

1. 91 

2-15 
1.98 



7-7 
7-5 
7-9 



12 


\n 


WS 


10.9 


4;z 


A 


1 1.0 


2« 


Ho 


II. 2 


^n 


Lv 




in 


Lew 




2n 


Br 



Discovered with the 6-inch. Relatively fixed. 
It is the/ star of a small equilaterial triangle; the 
/star is S 2159. 

[/3 (i).../3 {Mon. Not. xxxill, 351) .. .Wilson and Seabroke 
{Mem. R. A. S. XLlll) ...A (i) . . . Hough (2978) . . . Lv {A. 
J. 278) {Proc. Haverford Coll. Obsy. 1892). . . Levifis {Gr. 
0/ix;M. 1894). . .Brown ( )..■] 



P 128. B.A.C 5879 



R.A. 17'^ 19" 24= 
Decl. — 26° 14' 



1876.56 327.3 

1877.50 324.5 

1-891.56 328.0 

1897.68 322.8 



3-66 
4. 10 
4.04 
3-97 



10. o 

9-7 
10.3 
10.2 



in 
2n 

2tl 



Cin 
Cin 

See 



Probably fixed. It 



Discovered with the 6-inch. 
had been previously seen by the Harvard observers, 
but published long after /? (in). 

[|3 (ill).. ./3 (/1-/07Z. AW. XXXIV, 59). . .(3 (3114).. ./3 {Pub. L. O. 
11) . . .Cin3. . .Cin''. . .Annals Harvard Obsy. XIII. . . See 
(3496)...] 





p 


1249. Rumker 


5837 










R.A. 17'^ 19"^ 30= 


{ 












Decl. +53° 58' 












A and B 










1891.43 




80.1 


0^44 8.8. 




9.0 


V 


P 


1897.71 


82.3 


0.46 






in 


A 


1898.71 


82.2 


0.49 

AB and C 






III 


Br 


I89I.4I 



74-3 


62*46 8.7. 


. . 


8.9 


y 


i8 


1898.71 


74.6 


63.66 






in 


Br 



Discovered from i8yi to i8gg by S. W. Burnham 



165 



Discovered with the 12 inch. A and C are re- 
spectively D.M. (53°) 1938 and U.M. (54") 1875. 

[/3 (xviii). . ./3 (,^113). . .^{Pub.L. O. II). ..Aitken {/?./. 429) 
. . .Brown ( ). • • ] 

P 1250. W= XVII. 559 



R.A. 17'' 20'" 19" 
Decl. + 30'^ 52' 



1877.26 57.6 1.93 10. 3... 10. 8 yi ^ 

1884.65 60.2 1. 41 8.7... 8.7 277 Ho 

1891.72 63.7 2.02 9-4... 9-5 277 (i 

1896.99 68.9 2.23 ... 27/ Lew 

1897.58 67.5 1.84 ... 277 Bow 

1897.71 64.8 1.99 ... 37Z A 

1898.70 64.2 2.26 ... 277 Bry 

1898.70 65.7 2.18 . . . Ill Lew 

Discovered with the 6-inch May 31, 1876, but 
not included in my catalogues of new pairs pub 
lished at that time. It is the s star of a small equi- 
lateral triangle, all in the field. The magnitude in 
D.M. is 8.5. 

[^ (xviii). . ./3 (3113). • ./S (Pub.L. 0.u)...A (I, p. 347). ■ -Ho 
(2978) . . . Aitken {A.J. 429) . . . Lewis, Bryant and Bowyer 
[Mon. Not. Lix, 400). . .] 

P 129 = p II20, Piazzi XVII. 100 







R.A. 17'^ 


21™ 14^ i 












Decl. — 


25° 24' i 








1877.41 




100.2 


0.96 


7-5-- 


. 8,0 


177 


Cin 


1879.34 


98.8 


1.09 


8.0. . 


. 8.0 


177 


Cin 


1880.59 


279.4 


1. 10 


7-5-- 


. 8.0 


377 


Sp 


1889.14 


100. 


0-93 


7.0. . 


■ 7-0 


3 '2 


/? 


1890.50 


103-3 




7.2.. 


. 8.0 


2 77 


Gl 


1893.65 


100.2 


0.86 


75^-- 


■ I'A 


2 77 


Sel 


1897.57 


99.0 


0-93 


7 ■ • 


■ 7 + 


377 


A 


1897.65 


106.4 


1.02 


8 . . 


. 8.4 


177 


See 



Discovered with the 6-inch, and inadvertenty put 

as new in /3(xvi). Apparently without change. 

This is B.A.C. 5896. 

[/3 (ill, xvi). . .(3 (Afon. JVoL xx\iu, 437) . . ./3(2956). . .^(Piil/. 
L. O. 11). . .Cin". . .CinS.. .Sp (11) . . .Glasenapp (l) . . . 
Sailors (3240). . .Aitken (3465). . .See (3496). . .] 

P 1089. W' XVII. 387 



R.A. 17'' 23"' 22= \_ 
Decl. - 5° 48M 



1888.64 365.2 
1897-52 354-6 



0-95 
0.92 



6. 8... 1 1.0 yi fS 



7.0. 



v/ A 



Discovered with the 12-inch. There may be a 
change in the angle. Lalande 31816. 
[(/3 XV). . .(3 (2929). . .pjPui. L. O. II). . .Aitken (3465)- ■ ■] 

P I20I, O. Arg. N. 17215 



<,A. 17'' 26™ 37^ ) 
Decl. .+ 67" 52' ) 



Decl 

1890.49 338.2 0.43 7.8... 7.8 377 /3 

1898.62 340.4 0.43 7-9- ■• 8.0 377 A 

Discovered with the 36-inch. 
[i3(xvn).../3(3047)...i3(/'«<^. Z- O. 11). ..Aitken (3585)---] 



P 1090. p Draco/US 

R.A. 17'' 27" 43= 
Decl. -|- 52° 23' 



1889.26 


13-4 


3-Q7 3 • 


. .14-0 


477 


^ 


1890.34 


12.8 


4.18 


..13.8 


3« 


iS 


I89I.3I 


. 12-3 


4.06 


- -14-5 


3« 


(i 


1892.32 


13-7 


4.04 


■ -13-7 


377 


^ 


1898.31 


12.2 


4.27 


. . 14.0 


477 


li 



The minute attendant to /? Dracoiiis was discov- 
ered with the 36-inch. It is bevond the reach of 
all but the largest refractors. Auwer's latest value 
of the proper motion of the bright star is o.'oi96 
in the direction of 290?9. This movement is 
small, but if the small star was fixed in space, it 
would increase the position-angle 2?5 in the inter- 
val between 1889 and 1898. The measures do not 
seem to indicate any such change in the direction 
of the companion, and the probabilities are that it 
is moving with the primaiy. 
[i3{xv).../3 (2929,3048,3114,3142)... |3 {Pub. L. O. II)...] 

P II2I. D.M. (12^^) 3264 

R.A. 17'' 31'" 52" ^ 
Decl. + 12" 36' S 

o // 

1889.14 240.1 0.71 8.5... 9.0 37/ ji 

1892.64 242.4 o.6g ... 677 Sp 

1895.67 236.0 0.61 8.4... 9.5 37/ A 

1S97.00 248.0 0.66 ... 27/ Lew 

1897.56 244.2 0.73 ... 2/7 Bow 

1897.71 240.8 0.64 ... 37/ A 

Discovered with the 36-inch. Change uncertain. 
This is 2'" 30' /and 2.'5 j of a Ophiiiclti. 

[|3 (xvi).../3 (20.S6).../3 (/'///.. L. (r'ii)...Sp (nO... Aitken 
{Ast. Soc. Piic. VII, 305) (A.J. 429). . .Lewis and Bowyer 
{Mon. N^ot. Llx, 400) . . . ] 



i66 



General Catalogue of Double Stars 



P 960. Lalande 32122 
R.A. i7'> 32'" 3^ ] 



Decl. 



1880.53 


294.9 


3.18 


1891.56 


301.2 


2.98 


1898.52 


297.7 


3-44 


IS98.64 


294.2 


3-54 



8.4. . .11.1 
8.3. . . 12.4 

80... II. 8 



A» 


13 


V 


f^ 


i" 


A 


211 


B 



Discovered with the i8^<-inch. 



[(3 (XIII)... /33... ^(3114) 
. . . Brown ( ) . . . ] 



./3 {Pub.L. O. ll)...Aitken (3585) 



-2^^ 



P 962. 26 Draco /lis 







R.A. 17'' 


,33 


.45s 


\ 










Decl. + 


61 


°S8' 


\ 






1879.39 


148.9 


I-31 




5-5- 


. . II.O 


in 


Cin 


1879.97 


151. 8 


1-37 




5-5- 


. . lO.I 


V 


/? 


1881.53 


148. 1 


1-31 




5-8. 


. . 10.2 


y 


/3 


1889.42 


130. 1 


0-95 






. . I I.O 


4« 


/? 


1890.37 


131-5 


0.81 








3" 


/3 


1891-33 


125-7 


0.78 






. .11.6 


yi 


/3 


1892.41 


119. 9 


0.62 








211 


^ 


1894.19 


102.7 


0.58 








1)1 


Bar 


1898.70 


79-7 


0.47 






. . 12.0 


m 


A 




26 Draconis. {i 962. 



Discovered with the 18^ -inch. The principa 
star has a proper motion of o.''583 in the direction 
of 1 52? 7 {Bo/ni Obsei'vations), and it was therefore 
certain at the time of mv second set of measures in 
1881, that this was a binary system from the com- 
mon proper motion of the components. The dis- 
tance has been steadily decreasing, and it is now 
(1898) an extremely difificult pair. This is princi- 
pally due to the great difference in the magnitudes 
of the stars. It will probably be a very difficult 
pair to measure for some years. The several posi- 
tions are shown on the accompanying diagram. Of 
course it is impossible at this time to say anything 
about the probable period. 

[i3 (.xill).../33...,S4.../3 (2957, 3048, 3114, 3142)... /3(/'/.^. 
L. O. 11)... /3 [Sid. Mess, vill, 356). . .CinS. .. Barnard 
M./. 447)... Aiken ( )...] 



P 631. Opiiiiichi 155 







R.A. i7'> 


33" 47' 


} 










Decl. — 


0° 35' \ 











// 








1879-55 


73-0 


0.40 


7.0. 


■ 7-0 


4;/ 


/8 


1883.34 


81.2 


0.42 


7.0. 


- 7-0 


4« 


Sp 


1884.63 


60.0 


0.40 






i" 


Sp 


1886.65 


65.8 


0.36 






7« 


En 


1887.88 


65-3 


0-37 




. 8.2 


2 71 


Sp 


T888.50 


57-2 


0-43 


7.0. 


- 7-0 


211 


Lv 


1891.58 


67.2 


0.36 


7-5- 


. 7-6 


y 


i8 


1895.68 


69.8 


0-37 






111 


Lew 


1896.69 


33-3 


0.97 






in 


Dy 


1898.47 


244-3 


0-57 


7.2. 


■ 7-2 


2/1 


Doo 


1898.54 


244.0 


0.42 


7.0. 


■ 7-3 


2n 


^ 



Discovered with the i8i/<-inch. A binary in 
slow retrograde motion. In Gould 6.4 ra. La- 
lande 32200. 

[j3 (x)...i3^../33.../3 (3ii4).../3 [Pub. L. O. 11)... Sp (11 
app). . .Sp (ill). . .Engelmann (2786) . . .Lv'. . . .Lv {Sid. 
Mess. VIII, 77). . .Lewis and D3'son [Mon. N'ot. LVI, 359; 
LIX, 400 {Greenwich Obsns. 1895) . . . Doolittle {Pub. Flower 
Obsy. I)...] 



P 961 := P 963. Lalande 32206 



R.A. 17'' 33" 32= 
Decl. + 3° 28' 



50.65 
)2.37 



141. 4 
[41.6 



8.00 
8.13 



6.9. 
6.9. 



1 1.5 
1 1. 



I /? 
8 3// ^ 



Discovered from i8ji to i8gg by S. W. Burniiam 



167 



Discovered with the 18^ -inch. Two minute 
stars, more distant, in the same quadrant. In 
Gould 7.1 m. 
[/3(xni).../33...|3(3i42)...(3(/'«^. Z. O. 11)...] 

p 1251. B.A.C. 5991 







R.A. 17" 


36m 35s 


( 










Decl. + 


16° I' 






1884.61 




90iir 


I.2± 


6.0. 


.. 9.0 


\N 


^ 


1891.56 


79.0 


1-37 


6.0 


..II. 5 


yi 


/8 


1896.51 


84.9 


1.25 






in 


Lew 


1897.58 


65.2 


1.23 


6 . 


..11 + 


yi 


A 


1898.48 


71-5 


1.42 


6.2. 


. . 10. 


^n 


D 


1898.67 


69.1 


1. 41 






\n 


Br 



This pair was discovered with the 183^-inch at 
Chicago, but not included in an}? of the catalogues 
of new pairs issued at that time. This is a naked- 
eye star in Ophiiictcs; in D.M. 5m; Hels 6m; 
Harvard 5.7 m. The Berlin A. G. Catalogue give.?, 
the principal star a proper motion of o!'i2i in the 
direction of 35o?4 (Porter o''ii5 in 36o?o). The 
relative change appears to be small, but it is certain 
that the two stars have a common proper motion 
and form a physical system. 

[^ (XVIII). . .^ (3113). • -iS [Pul>- L. O. u). . . Aitken {3465)- ■ • 
Lewis {Mon. Not. Lix, 400). . .Doolittle {Pub. Flower 
Obsy. l). . .Brown ( ). . .] 

P 824. D.M. (— 1°) 3400 

R.A. 17'' 42™ 41= \ 
Decl. — 1° so' f 

o // 

1881.40 350.9 0.67 8.5... 8.6 yi (3 

1888.54 349-4 o.6g 8.8... 8.9 4;/ Com 

1898.67 351.3 0.63 ... in Br 

Discovered with the 15^ -inch at the Washburn 
Observatory. 

[/3 (xil). . ./S^. . .Comstock (Pub. I'Vas/iburn Obsy. vi) . . .Brown 
{ )...] 

P 358. W= XVIL 1374 



R.A. 17'' 43"" 10^ 
Decl. + 34° 32' 



1879.37 202.8 4.29 8.2... 9.5 2« Cin 

1892.39 206.1 4.22 8. 5... 10. 5 i/i /8 

Discovered with the 6-inch. 
[/3(vi)...j3 (2062, 3142)... /3 {Pub. L. O. ii)...Cin5...] 



P 632. Lalande 32600 

R.A. 17'' 43"^ 32= ] 
Dec!. + 34° 19' f 

A and B 

1877-97 343-6 5-46 6. 3... 12. 5 in (3 

1882.53 344.0 5.48 7.0... 12.0 i« Ho 

1892.52 344.5 5.25 7.0... 12. 5 m Ho 

1899-39 343-9 5-46 ...12.7 2n (i 

A and C (= OS 336 r<rj.) 

o I 

1843.31 164.0 44.66 ... m Ma 

1866.86 164.9 43-16 6. 3... 10. 3 yi J 

1877.97 164.9 42.80 ... in fi 

1892.52 164.5 ••- ...10 m Ho 

1899.39 164.2 42.44 ... Z'l (i 

The faint companion to the principal star of this 
wide pair was detected with the 18^-inch. The 
three stars seem to be relativel}' fixed. The mag- 
nitude in D.M. is 6.5. All the measures of AC 
are given. 

[/3 (x) . . . |3i . . . Hough (2978, 3234) ... J (l) . . . Madler {Dorpat 
Obsns. xi). . .] 

P II22. Cord. G. C. 24248 



R..\. 17'^ 44"" 38^ 
Decl. — 28° 27' 

B and C 



1889.39 175-2 1-31 10. 4... 10. 9 yi /? 

1897.61 170.6 1.47 ... 3« A 

A and BC (= Howe) 

iSj-j.si 10.3 6.39 8.0...10.0 m Cin 

1880.44 8.7 6.54 8.5... 9.8 2// Cin 

1889.39 9.6 6.46 8.7... 3'i i8 

1897.60 10.4 6.41 8 ...12+ 2« A 

A and I) 

on 

1897.61 357.0 12.30 ...I2-|- 2// A 

The duplicity of Howe's companion was discov- 
ered with tlie 12-inch. There seems to be no 
change in its position with reference to the princi- 
pal star. The fourth star, D, was added by AItken 
with the 12-inch. 

[i3 (XVI) ... /3 (2956)... /S (Pub. L. O. ii)...Cin«.. .Cin«... 
Aitken (3466). . .] 



i68 



General Catalogue of Double Stars 



P II23. Cord. G. C. 24262 



.A. i7'> 


45" 20^ \ 








eel. — 


34 


^42' \ 








II 

0.58 




7.4.. 


. 7-8 


4« 


i8 


0.27 




6.9.. 


■ 7-2 


2;/ 


See 


0.45 




7.2.. 


• 7-2 


2n 


A 



1889.48 212. 8 
1897.64 220.4 

1898.49 207.6 



Discovered with the 12 -inch. In the large clus- 
ter, Messier 7. 

[jS (xvi) ... /3 (2956) ... i3 (Pub. Z. C. Tl) ... See (3496) .. . Aitken 
(3585)...] 



P 964. Radcliffe 3775 



R.A. 17'^ 47"^ 39= 
Deel. + 48° 26' 



1879.27 329.2 0.97 7. 5... 12. 5 m /3 

1893.67 328.9 1.02 7. 5... II. 8 2>i W 

Discovered with the i8i/^-inch. 
[(3 (xill) /33... Wilson ( )...] 



P 130. 90 Herciilis 



R.A. 17'' 49'" 24" 
Decl. + 40° 2' 



1875-52 
1879.47 
1879.56 
1881.46 
1886.08 
1888.42 
1889.67 
1898.47 



123.0 
118. 6 
121.6 
122.2 
130.0 

123.3 
121. 5 
121. 8 



82 
76 

74 
90 

78 
67 

63 

70 



5-9 

6.0 
6.0 
6.0 

5-7 

5-5 



• 9-2 


6;i 


J 




\?i 


ys 


. 9.2 


211 


02 


■ 9-7 


A" 


^ 


.10.3 


6n 


En 


. 9.0 


3" 


T 




4// 


Maw 


- 7-7 


2n 


D 


a beautiful 


pair, 



Discovered with the 6-inch 
even with a small aperture. The components have 
a striking difference in color — go/den and t>//fe. 
The bright star has a proper motion of of 064 in 
the direction of 5?! (Auwers). If the small star 
was fixed in space, the movement of A during the 
interval covered by the measures would increase 
the position-angle of the companion 27?4 and its 
distance i". The measures show no sensible 
change, and there is little doubt of its being a 
physical system. 

[/3(ll).../3 {Mon. Not xxxill, 437). . .;33. . .jS^. . .02 (Fotil- 
kowa Obsns. x). . . .A (i). . . J (2086). . .Engelmann {2786) 
. . .Tarrant (2991). . .Maw {Mem. R. A. S. 1,, 75). . .Doo- 
little {Picd. Flower Obsy. i). . .] 



P 417' Lalande 32939 



R.A. i7>' 


52" 13= 1 








Decl. + 


39 


= 27'i 








1.58 




8.1. . 


. 10. 


\n 


J 


1-43 








3« 


^law 


1-54 








2« 


Br 



1877.37 270.2 

1889.66 270.9 

1898.65 273.1 



Discovered with the 6-inch. In the field with 
2 2246. 

[j3 (viil. . ./3 (2103). . .Maw {Me7n. R. A. S. L, 75V . .Brown 
( ')---] 



P 633. "Y Draconis 

R.A. 1-^ 53™ 49" ] 
Decl. + 51° 30' i 







A and B 








1878.38 




152. 1 


20^88 2.4. 


..13.0 


2« 


/3 


1879.80 


151. 6 


20.94 


.13.2 


2)1 


/3 


1889.25 


151-3 


21.10 


.12.5 


V 


/3 


1898.30 


151-3 


20.92 

A and C 


.13.2 


211 


^ 


1878.38 



227.1 


47-89 


.12.5 


m 


/3 


1898.34 


230.2 


45-73 

A and D 


-13-5 


in 


i8 


1878.38 



13-7 


56'!68 


.12.5 


m 


/8 


1898.34 


10.4 


57-33 

A and E 


.13.0 


IH 


iS 


1898.30 


2 34-8 


97-54 

A and F 


.11.5 


2« 


yS 


1879.27 



1 16.3 


// 
124.77 


. 10.8 


m 


i8 


1898.27 


116. 5 


125-52 

A and G 


.11.5 


m 


^ 


1898.27 


28^0 


139.24 


.11.5 


\n 


/? 



The minute companion to y Draconis was dis- 
covered with the 1 8^ -inch. This star has a proper 
motion of 0^028 in the direction of 2i4?6 (Au- 
wers). This is very nearly in the direction of B, 
and, in the twenty years covered by the measures, 
should diminish the distance of that star 0^5 if it is 
not moving with the large star. The measures do 



Discovered from 18"] i to i8gg by S. W. Burnham 



169 



not show any change in the distance, and the two 
are probably moving together. 

[/3(x).../3'.../33.../3 (Ast. &- A.-F.xin, i)...p (2930)...^ 
(Pub. L. O.n). ..] 

P 283. B.A.C. 6088 



R.A. 17" 54'" 38' 
Decl. — 22° 47' 

A and B 



1878.86 239.3 
1892.39 238.6 
1895.54 237.7 



8.05 6.0... 12. 5 3« (8 

8.17 6.0 . . . 13.0 2« j8 

8.45 6. 1... 1 3.0 3« A 



A and C 



)2.39 



.S4-4 



14.10 



14 



m /? 



The nearest companion was discovered with the 
i8j^-inch, and the other added with the 36-inch. 
This is a naked-eye star in Sagittarius, about 15' 
;/ of the trifid nebula. 

[i3(v)...j3 {MoH. Not. XXXV, 31). . .^'. . .(33. . .;3 (3142)... 
(3 {Pi,t>. L. O. n). . .Aitken {Ast. Sac. Pac. vn, 305). . .] 



P 1 1 24. ^'j Ophiuchi 



R.A. 17" 54"> 3S^ 
Decl. + 2° 56' 



•39 195-6 
■54 195-8 



A and B 

6-79 5 
6.72 



. .14.8 



ifi 



C and D (= /3 634) 



1878.57 


129.2 


8.46 


9.0.. 


.13.0 


I« 


/3 


1889.40 


129.6 


8.40 


8.3: 


.11.5 


2)1 


/? 


1898.54 


128.7 


8.16 


. 


. 


\n 


/3 



A and C (= Sh 255) 



1823.41 


I43-I 


55-23 


5-6. 


•- 9 


\)i 


Sh 


1849.94 


142.7 


54-47 


4.2. 


. 8.0 


3« 


OS 


1875-59 


142.8 


54-83 


4.2. 


. 7-6 


4« 


J 


1878.57 


143-0 


54-70 


5-6. 


. 9.0 


Dl 


y8 


1886.34 


142.9 


54-29 


4.4. 


. 8.1 


1" 


En 


1889.40 


143.6 


■ 54-54 






211 


-8 






A and E 








I87S.57 


179-8 


45-94 


. 


. 12 


Ml 


a 


1898.54 


I 78.0 


45.66 






\ll 


/8 



The companion to A was discovered with the 
36-inch, and the companion to C with the i8j^- 
inch. The wide stars AC = H' VI. 2 = Sh 255 = 
02 (app) 162. These stars appear to be relatively 
fixed. The principal star has a small proper mo- 
tion, 0^027 in the direction of 257?5 .(AuwERs). 
The measures of B hardly cover a sufficient time to 
show whether or not that star is moving with the 
primary. 

[(3 (x, XVI). . .^■. . ./3 (2956). . ./3 (Pub. L. O. II). . .] 

The principal measures of AC are given. The 
following relate to the old components : 

\^A (i). . .Engelmann (2786). . .Annalen Konii^sbers Stern- 
warte xvil. . .Powell {Mem. R. A. S. xxv). . .Radcliffe Obsns. 
XXI, xxxvill. . .OS {Poutkowa Obsns. X, p. 36). . .] 



P 47. Lalande 32978 

R.A. 17'^ .S4"' 52= / 
Decl. — 10° 14' ) 



1875-74 


268.3 


1.84 


8.9 


. . 10.9 


4« 


J 


I89I.6I 


273.8 


1-37 


8.0 


. .10.8 


3« 


/3 


1893.82 


273.0 


1.46 






5" 


Sp 


1895.63 


277.1 


1.46 


8.0 


. . 10.4 


3« 


A 


1896.55 


273.2 


1.64 


8.1 


. . 10.8 


3« 


Lv 



■ Discovered with the 6-inch. It is a difficult pair 
with that aperture. 

[(3 (i). . .^ {Mon. Not. xxxill. 351). . .|3(3ii4). . .p{Pub. L. O. 
11)...-! (l)...Sp (III). . ..\itken (^-t/. 5(7ir. Pac. vil, 305) 
...Lv (^.7.407)...] 



P 1202. D.M. (3-) 3564 



1890.48 353.1 

1892.65 356.8 

1895.56 362.5 

1897-73 346-3 

1899.26 355 8 



1890.48 93.2 
1899.26 94-6 



R.A. 17" 55"" 33= 


\ 






Decl. -f 3° 32' 


\ 






A and B 








0.74 8.2. 


■ 9-3 


y 


H 


0.65 




111 


Sp 


0.60 




Ml 


Sp 


0.S2 




y 


A 


0.58 8.5. 


. 9.0 


IN 


P 


C and D 








3.91 9.4. 


.11.3 


y 


n 


3-87 9-5- 


.11.5 


IN 


^ 



lyo 



General Catalogtie of Double Stars 



AB and C 



1890.47 
1899.26 



28.2 103.87 
28.1 103.85 



1890.47 138.5 90.32 
1899.26 138.2 90.14 



AB and E 

8.7 



4;/ /3 
\n /3 



8.5 4« ^ 
8.5 I// 13 



Discovered with the 36 inch. A and E are re- 
spectively Lament 2849 ^.nd 2852, but the declina- 
tion of the latter should be 1 ' more. There is a 
13m star, from C, 145^0 : 15. "8. 

[/3 (.\;vii)...j3 (3048).../3{/'«/;. Z;. a il)...Aitken (^./. 429) 
...Sp(iii)...] 

P 1125. 68 Opliinclii 







R.A. \t 


55'" 40^ 


\ 










Decl. -f 


1° 19' 


\ 






1889.39 




14.9 


// 
1. 01 


5.1 . . 


■ 9-9 


5;; 


P 


1890.47 


19.7 


0.91 


5-0- 


. 8.7 


3« 


/8 


1892.37 


22.0 


0.89 


5-0- 


. 9.2 


4« 


i3 


1894.13 


14.9 


0.78 






4;/ 


Sp 


1897.51 


10.5 


0.99 


5-0- 


. 10. 


3;/ 


A 


1898.52 


15-3 


0.86 




. . 9.0 


3" 


^ 


1898.53 


16.6 


1.02 


5-2. 


. 10. 


yi 


A 



Discovered with the 36-inch. The proper motion 
of the large star is very small, ofoi2 in the direc- 
tion of 256?6 (AuwERs). The relative change is 
slow, but there is not much doubt of these stars 
forming a ph3'sical system. 

ScHiAPARELLi finds the principal star a close 
pair, and from a single measure gives, 32o?o : o !3± 
(1892.66). There are no other observations of this, 
and I have had no opportunity to examine it under 
sufficiently favorable conditions since receiving re- 
cently the measures of Sp. It would seem to be a 
triple of extraordinary interest. 

[^ (XVI)... ^ (2956,3048,3142)... /3 (Pub. L. O. li)...Aitken 
(3466,358s)...] 

P 635. D.M.(i=)3565 

R.A. 17'' 56™ 41^ 
Decl. + 1° 37' 







A and B 








1878.07 




II4-5 


1.58 


9.0. 


. lO.O 


2« 


/8 


1891-55 


116. 3 


1.40 


9.4. 


.11.4 


2« 


/? 


1898.50 


117. 7 


1.56 


9.2. 


•IO-5' 


y 


A 


1898.65 


116. 7 


1.49 


. 




211 


Br 



A and C 



1891.55 121. 8 69.31 
1898.50 122.2 69.41 
1898.65 122. 1 69.20 



8.1 
9-5 



111 

3« 



i3 
A 
Br 



Discovered with the 18^-inch. There may be 
some change in the angle of AB. C is D.M. (1°) 
3566. The magnitudes of A and C in the D.M. are 
respectively 9.0 and 8.7. 

[^(x).../3^..^(3II4)...^(/'«^.Z.aII.)...Aitken(3585)... 
Brown ( ). • .] 





^ 


II 


26. Yarnall 7599 










R. 


A. 17^ 56"^ 53^ ) 
;cl. —24° 15' \ 










D 












A and B 






IS89.40 




55-6 




0.63 8.7.. . 9.5 


4« 


/S 


1899.51 


58.3 




0.67 8.1 .. . 9.5 


2/1 


A 



AB and C (= H 5009) 



1837.70 


20.8 


2± 


10 . 


. 12 


in 


H 


1879.47 


19.7 


3'-89 


8.0. . 


. 9.0 


in 


Cin 


1880.58 


19.9 


3.86 


9.0. . 


- 9-5 


in 


Cin 


1889.40 


23-3 


4-05 




. 9.6 


4« 


yS 


1899.51 


21.2 


3-87 


8.2. . 


■ 9-5 


4« 


A 



The principal star of H 5009 was found to be a 
close pair with the 36-inch. This is in the cluster, 
Messier 8, and is described by Herschel as " the 
star_y in the monograph of M 8" (Cape Observa- 
tions). The above are all the measures of C. 

[/3 (xvi).../3 (2956)... (3 [Pub. L. O. ll)...CinS...Cin«... 
Aitken ( ) . . . ] 



P 825. Lalande 33157 



R.A. 17'' 58™ 20= 
Decl. + 25° 22' 



A and B 



.1.37 197.7 
;8.66 193. 1 
[9.47 194.6 



1891 



1 1. 41 
11.52 
1 1.20 



44 194.8 11.46 



1898.38 194. 1 11-85 



8. 4... 13.0 3;/ /3 

8.0. . . 1 1.7 2« Com 

...1 1. 5 yi (3 

. . . 13.0 2/1 /8 

8.0. . . 12.0 5« D 



Discovered from iSji to i8gg by S. W. Burnham 



171 



A and C f= S 2268 = S 699) 



1829.70 


218.2 


18.13 


8.0. . 


■ 9 





2)1 


2 


1866.52 


214.0 


19.32 


8.T. . 


■ 9 





6// 


J 


1881.37 


212.5 


20.08 


8.4.. 


. 8 


8 


i" 


^ 


1889.47 


2 I 1.6 


20.00 


8.5.. 


. 8 


8 


4)1 


/3 


1891.44 


211.4 


20.24 


8.3- • 


. 8 


5 


211 


/? 


1898.38 


210.7 


20.63 








S" 


D 






B and C 










1891.44 




232.2 


9.82 








2)1 


i8 


1898.48 


231.0 


9-3° 


. . 






v> 


D 



The faint star nearly midway between the com- 
ponents of 2 2268 was discovered with the 15^- 
inch at the Washburn Observatory. The change 
in AC is evidently due to the proper motion of 
one of these stars. Assuming that this is the prin- 
cipal star, the measures give a movement of about 
o!o5 in the direction of 350". 

[/3(XTi). . ./34. . .;3(29573ii4). . ./S (Ast. &- A.-P. xiii, 17). . .(3 
{Pitb. L. O. II . . . Comstock (Pub. Washburn Obsy 
vi). . .Doolittle [Pub. Flower Obsy. l) . . .] 



A few of the measures of AC are given, 
will be found by the following references : 



AH 



Madler [Fixstem-Systeme l) (Dorpat Obsns. xi, xilI, xv). . . 
A {\\)...A (1572). . .Sp (11). . .Bigourdan (/'arw 0(^^«^. 1883) 
. . .Gledhill, Wilson and Seabroke {Mem. R. A. S. XLII, XLViii) 
. . .Pritchett {Pub. Morrison Obsy. l). . .Glasenapp (iv). . .J 



p 1127. Groombridge 2500 







R.A. 17'^ 


58' 


"59= / 










Dec). + 


44 


M4'f 






1889.53 


1 44° 7 


0.80 




7.8... 9.7 


v> 


/S 


1895.65 


147.4 


0.86 




7.8. . . 10.2 


y 


A 


1897.71 


130-5 


0.88 






v 


A 


1897-75 


147.0 


0-57 






in 


Lew 


IS98.6I 


139.6 


0.74 






\n 


Bow 


1898.70 


135-6 


0.76 






1)1 


Lew 



Discovered with the 12-inch. Change is still 
uncertain. The magnitude in D.M. is 6.5, and in 
Radcliffe 7.2. 

1/3 (XVI). ../3 (2056).. .p (/'lib. /.. O. II).. ..Ailken (A.J. 429) 
{Ast. Soc. Pac. VII, 305). . .Le\vi.s and Howyer {A/on. Not. 
Lix, 400). . .] 



P 243. O. Arg. S. 19762 

R.A. iSh o™ 55= \ 
Deck — 22'' 17' \ 



1878.58 125.8 

1881.58 123.3 

1897.65 124. 1 

1898.52 125.4 



^-52 56-5 



A and B 








o'.'84 8.0. . 


. 8.7 


2« 


Cin 


0.76 8.2.. 


. 8.2 


V> 


/? 


0.52 7.9.. 


• 8.3 


\1l 


See 


0.92 7.9.. 


. 8.0 


3" 


D 


A and C 









40.17 



9.0 3« D 



Discovered with the 6-inch. Evidently un- 
changed. 

[(3 (v)...(3 (/1/o«. A^o/. XXXV, 31). ../34. ..Cin". . .CinS. ..See 
(3496) . . .Doolittle {Pub. Flo'wer Obsy. l). . .] 



P 244. Lalande 331! 



R.A. i8>' i" 
Deck — 27" 

/; 
2.06 

2.22 

2.01 

2.03 

2.04 



1876.56 261 

1877-55 255 

1880.58 257 

1881.59 258 
1892.54 257 
1897.63 257.6 2.38 7.0.. 



53' 

8.0. 
8.0., 

8.0. 
8.0. 



9.0 
9.0 

9.8 
10.3 
9-0 3« 



\n 

2)1 

\n 

I" 

2)1 



Cin 
Cin 
Cin 

Lv 
See 



Discovered with the 6-inch. Probably fixed. 

[/3 (v). . ./3 (Mon. Not. xxxv, 31). . .^* . . .Cin3. . .Cin-*. . .Cin* 
...Lv (A.J. 278) (Proc. Haverford Coll. Obsy. 1892)... 
See (3496)...] 



P 418. O. Arg. N. 17847 



1879.29 227.9 
1893.44 228.4 



R.A. 18'' I'" 28^ \ 






Deck + 64° 26' \ 






14.33 8. 2... 12.0 


\H 


fi 


14.60 8.0. . . 12.2 


y 


w 



I899-: 



227.8 14.60 8.5 ... 1 1.5 



/8 



Discovered with the 6-inch. No sensible change. 
There is an error of 180"' in the angle as printed in 
^ (vii). 

[/3 (.vii).../3 (2103)... /33... Wilson ( )•••] 



172 



General Catalogite of Dotcble Stars 



P 636. Lalande 33280 







R.A. 18" 


2- 4= 


} 










Decl. + 


2° 12' 


\ 










A and B 








1878.62 




127.0 


4-92 


7.0. 


. 12.2 


211 


/3 


1885.51 


127.9 


5-12 






2/1 


HS 


1892-55 


123.2 


4.60 


7-5- 


. 12.0 


2U 


Ho 


1898.31 


I 24.0 


4.70 


7.2. 


.13.0 


2n 


iS 


1898.52 


123.6 


4-73 


7.2. 


. . 12.0 


5" 


D 


1898.67 


126.0 


4.66 






in 


Br 






A and C 








1898.34 


99-8 


;; 
15.08 




• -14 


111 


i3 



Discovered with the i8}<-inch; the distant star 
with the 40-inch. 

[|S (x). . .iS'. . . Hough (3234) . . .Doolittle {Pud. Flower Obsy. 
l)...HS( )... Brown ( )...] 



P 826. D.M. (9°) 3566 



R.A. 18" 2™ 5= ) 
Decl. + 9° 45' \ 



1881.57 


34I-I 


0.60 


9.6.. 


• 9-7 


Z" 


a 


1893.52 


333-2 


0-59 


9.8.. 


• 9-9 


2)2 


Lv 


1893-57 


150.9 


0.78 


9-5- - 


. 9.6 


\n 


W 


1896.70 


331-5 


0.71 


9-5-- 


• 9-5 


211 


A 



Discovered with the I5j4-inch at the Washburn 
Observatory. Change is doubtfuL There is a 7 m 
star 5 :'3 ;/. 

[/3 (xTi).. ./34.. .Lv {A./. 382) .. .Wilson ( )...Aitken 
(3396)...] 

P 245. Sagittarii 46 



R.A. 18'' 2" 21^ 
Decl. — 30° 45' 



1868 


67 


366.6 


4.17 


6 . . 


8-5 


\n 


Hd 


1874 


50 


354-8 


3-5± 


6.0. . 


10. 


A,n 


/8 


1877 


53 


352-1 


4.02 


6.0. . 


. 9.0 


III 


Cin 


1888 


53 


361.9 


4. 1 1 


6.0. . 


8.5 


in 


Lv 


1890 


65 


351-8 


2-99 


6 .. 


8 


\n 


Sel 


1892 


52 


353-3 


3-98 


6.4.. 


8.9 


2 71 


Lv 


1893 


66 


350-4 


3-87 


6 . . 


10 


y 


Sel 


1894 


58 


352-7 


3-93 






4;; 


So 


1897 


50 


353-6 


4.67 


6.1. . 


9-5 


i« 


See 



Discovered with the 6-inch. The subsequently 
published observations of the Harvard Observatory 
show that it had been seen there previously. There 
is probably no change. This star is B.A.C. 6145. 

/3 (v). . .;3 [Mon.Not. xxxv, 31). . .Annals Harvard Obsy. yjiw 
. . .Cint. . .Lv'. . .Lv (A. J. 278I {Proc. Haverford Coll. 
Obsy. 1892). . .Sellors (3154,3240). . .Scott {Brit. Ast. 
Assn. VI, 249). . .See (3496). . .] 



P 759- Cord. G. C. 24739 



R.A. 18'' 3" 49S 
Decl. — 39° 22' 







A and 


B 






1887.30 




122.0 


// 
2.13 


8.5... 9.0 


3« 


Pol 


1889.40 


121. 4 


1. 81 


8.9. .. 9.1 


3« 


/? 


1896.65 


119. 7 


1.76 


8.3... 9.2 


yi 


See 




A 


and C ( = 


H 5028) 






1835-5 




152-5 


i5± 


9 ... 9 


2n 


H= 


1886.60 


148.7 


15-27 


... 9 


\n 


Pol 


1889.40 


147-3 


14.92 


... 9.0 


yi 


P 


1896.67 


149.7 


15-43 


... 9.5 


in 


See 



The duplicity of the principal star of Herschel's 
pair was discovered with the 6-inch at Mt. Hamil- 
ton in 1879. C is Cord. G. C. 24740. 

[/3 (xi). . ./3'. . .(3 (2957). . ./3 {Pub. L. O. II). . .Pollock (Pub. 
Sydney Obsy. 1891) [Mon. Not. XLVll, 473) (Mem. R. A. S. 
l) . . .See (3496). . . Herschel (Cape Obsns.) . . .] 



p 637. w xvin. 28 







R.A. i8>' 


y 


" 54^ 


( 










Decl. 4- 


3 


^ 6' 


r 






1878.64 


195.2 


// 
7.26 




6.5. 


.12.5 


m 


/8 


1885.54 


193- 1 


6.96 








3« 


H2 


1891.64 


194.9 


7-33 




6.4. 


.12.1 


2n 


)8 


1898.51 


194.4 


7.01 




7.0. 


.13.2 


V 


/3 


1898.52 


191. 8 


7-55 




6.0. 


. 12.2 


2« 


D 



Discovered with the 18 J^ -inch. The principal 
star has a considerable proper motion : 



Boss - 
Porter 



0.185 'ri 166.0 
0.179 '^ 180.0 



It is obvious from the measures that the com- 
panion is moving with it, as otherwise in the time 



Discovered from iSyr to i8gg by S. W. Burnham 



/ 3 



covered by the measures the position-angle would 
be i3?6 more and the distance 3 ['3 less than at the 
date of the first measures in 1878. The magnitude 
in Argelander and Heis is 6 ; Gould 6.2. 

[/3 (x).../3'.../3 (3114)- --^ {Pub. L. a II)... MS ( )... 
Doolittle [Fub. Flower Obsy. l). . .] 



P 132. B.A.C. 6158 



1875.02 240.1 



1875.91 
1877.41 
1881.58 
""7-53 



)i.Si 

)2.52 



238.9 
230.4 
237.0 
229.4 
233-2 

230-5 
227.8 



1892.64 228.7 

1895.54 222.4 

1896.50 224.5 

1897.60 224.0 



R.A. \l 
Decl. - 

;/ 
0.78 

0-75 

0.79 
0.64 
1. 01 
0.S3 
0.89 
1. 00 
0.77 
0.94 



4"" r 

19° 52' 



\ 



yi 
211 

211 

2« 

yi 

2)1 
211 

y> 

yi 

211 



A 

Sp 

Gin 

/8 

Sp 

Lv 

/3 

Lv 

T 

A 

Lv 

Sc 



Discovered with the 6-inch. The measures 
appear to show slow retrograde motion. 

[/3 (III). . ./3 [Mori. Not. xxxiv, 59) . . .iS-t. . ./3 (3114) . . ./3 [Picb 
L.O.\i)...A (i)...zl (2086). . ..Sp (2133). . .Sp (11, app.) 
...Cin-*.. .Sp (in).. .Lv'. ..Lv (A./. 278. 407) (Froc. 
Haverford Colt. Obsy. 1892). . .Tarrant (3186) . . . Aitken 
{Asi. Soc. Pac. VII, 305). . .Scott [Mon. Not. i.ix, 427). . .] 



P 638. D.M. (2°) 3516 

K.A. i8h 4'" 19S \_ 
Uecl. +2° 34' i 

B and C 



1878.62 

1893-50 
1898.50 
1898.67 



10.5 
5-5 
7-3 
6.3 



1. 71 
1.48 
1.77 
1-75 



9.0 . . .11.8 
9.2 ... I 2.2 
9.2 ... 1 1.4 



271 

A,n 
4« 
in 



/3 
Lv 
D 
Br 



A and B C= S 2287 r^/.) 



1863.63 150.8 

1878.62 152.0 

1893.35 153-0 

1893-51 152-0 

1898.50 151.4 

1898.67 151.8 



22.22 
22.33 
22.07 
21.86 
22.01 
22.40 



9.0 
9.0 
8.4 
9-4 



in 


HI 


\n 


i8 


111 


W 


V 


Lv 


A" 


1) 


III 


Er 



The wide pair was rejected by 2 in Mensiirae 
Microinetricae. The smaller component was found 
to be double with the 18^ -inch. The measures 
show no change. The above are all the measures 
of AB. 

[/3 (x). . .|3'. . .Lv (^.7.382). . .Doolittle {Fith. Flo-wer Obsy. l) 
...Hall {Wash. Obsns. 1863) (1, p. 134J ... Wilson ( ) 
. . .Brown ( ). ■ .] 



P 292. |i Sagittarii 

R.A. i8h 6"" 35= } 
Decl. — 21° 5 ' f 

A and C 



1878.51 118.7 25.20 

1892.57 117.4 23.73 

1897.73 120.7 25.98 

1899-55 "9-0 25.92 



... 1 3 m Ho 
. . . 14 m .See 
...13.5 m fi 



A and B (=- H 5035) 



1836.50 


259-9 


16.08 


1877.66 


258.4 


17-23 


1878.42 


259-2 


16.91 


1879-37 


257-7 


16.66 


1879.48 


258.0 


16.80 


1880.53 


259-3 


17.12 


1892.56 


258.6 


17.12 


1892.57 


257-8 


16.37 


1897.71 


258.1 


17.24 



4 

5 

4-5 

5 

6 



A and D (= H 2822) 





m 


Lam 


. 10.0 


\n 


Gin 




m 


(i 


. I I.O 


m 


li 


. I 2.0 


111 


Gin 


. 9.0 


m 


Gin 


.11.2 


211 


Lv 


.11.0 


m 


Ho 


.12.5 


?," 


See 



1830 


313-8 


45± 


. . 10 


111 


H = 


1847-3 


312.9 


48.57 






Lie 


1879.36 


312.1 


48.32 


• • 9-5 


m 


^ 


1890.46 


312.0 


48.70 


-- 9-5 


211 


Gl 


1892.56 


312.8 


4S.63 


■ - 9-5 


It! 


Lv 


1S92.57 


3"-9 


48.78 

A and E 


. . 10 


Ill 


Ho 


1830 




115.2 


// 
40 zb 


. . 10 


Ifl 


H» 


1847-3 


115-4 


50-54 






Jac 


1879.36 


115.4 


50-13 


-- 9-5 


Ifl 


^ 


1890.46 


1 14.6 


49-43 


.. 9.6 


in 


Gl 


1S92.56 


I 16.0 


49.96 


■ ■ 9-7 


m 


Lv 


1892.57 


1 14.8 


50.02 


. . 10 


Ml 


Wo 



The faint star C, between A and E, was noted 
with the 26-inch at Washington. The bright star 
has a proper motion of ore 19 in the direction of 



t74 



General Catalogue of Double Stars 



272?9 (AuwERs). This is too small to say with 
certainty whether or not the companions have the 
same movement. 

[/3 (v). . ./3 [Mon. Not. xxxv, 31).. .j3'. . .;33. . .Ho (3234).. . 
See (3496) .. .Jacob {Mem. R. A. S. xvn). .. Lament 
(Analen Konigsberg Stermuarte XVIl) . . .Cin''. . .CiiiS. . . 
Cin6...Lv {A.J. 278) {Proc. Haverford Coll. Obsy. 1892) 
...Wilson and Seabroke {Mem. R. A. S. XLll, XLin) 
. . .Glasenapp (i). . .] 



p I3I' Lalande 33443 







R.A. i8'> 


6'" 42= 


\ 










Decl. — 


15° 38' 


\ 










A and B 








1875.01 


278°5 


2.71 


7-2. 


. 9.2 


41? 


A 


1877-41 


277.8 


2.66 


7-5- 


. 10. 


m 


Cin 


1880.45 


278.0 


2.63 


7.8. 


. 9-8 


111 


Lv 


1880.53 


279.7 


2.58 


8.0. 


-- 9-5 


2;/ 


^ 


1880.58 


279.6 


2.71 






IN 


Cin 


1892.53 


280.2 


2.76 


8.0. 


• 9-5 


2)1 


Lv 


1892.57 


278.5 


2.60 


7-5- 


. 10 


m 


Ho 


1898.63 


279.4 


2.80 

A an 


7-3- 
d C 


. 10. 


y 


Cg 


1880.53 


278% 


// 
7-13 




.11.6 


2 71 


^ 


1892.57 


278.5 


7.02 




-13 


\n 


Ho 


1898.63 


283-7 


7.40 




. 12.2 


2n 


Cg 



The close pair was discovered with the 6-inch, 
and in measuring that, the third star C was added 
with the i8j^-inch. So far there is no evidence of 
change. 

[iS {\\\)...^{Mon. Not. xxxiv, 59).../33...Zl (i)...zl (2086) 
. . .Cin*. . .Cin*. . . Lv' . . .Lv. . . (A.J. 278) {Proc. Haver- 
ford Coll. Obsy. 1892) ... Hough (3234) . . . Cogsliall 
( )---] 



P 286. 16 Sagittarii 



R.A. 1 8'' 8"^ 4= 
Decl. — 20° 25' 



1878.57 218.5 

1891.63 216.0 

1897.73 217.2 

1898.66 213.5 



5-67 


6.0. 


• 1 3-0 


V> 


/S 


6.03 


6.0. . 


. 12.0 


2tl 


/? 


6.22 


6.0. 


- 14-9 


m 


See 



5-93 



6.2 ... 13.2 yi Bd 



Discovered with the 26-inch at the Naval Ob- 
servatory. AuwERS gives the proper motion of A 
ofo29 in the direction of 241°. If the small star 



was fixed in space, the effect of the movement- 
would be to decrease the distance of B. The 
reverse of this appears to be shown by the measures, 
and it is probable that the components are moving 
together. 

[/3 (v). ../3 {Mon. Not. xxxv, 31). . ./S'. ../3 (3114).. ./3 {Pub. 
L. O. \i). . . See (3496) . . . Boothroyd ( ) . . . ] 



P 1091. Lalande 33592 



R.A. 18" 8"- 35= 
Decl. -f 38° 34' 



1888.78 


38.1 


0-53 


8.6.. 


. 8.6 


2« 


/3 


1896.69 


25-4 


0.66 






m 


Lew 


1898.60 


29.8 


0-45 


8.4.. 


. 8.4 


5« 


A 



Discovered with the 12-inch. Change in the 
angle is probable. 

[(3 (xv). . ./3 (2929). . ./3 {Pub. L. O. II). . .Lewis {Mon. Not. 
Lix, 400)...Aitken (358S)---] 



P 284. Lalande 33525 



1890.51 
1891.63 
1898.67 



R.A. 18" 9"- 13= 
Decl. — 19° 2' 

A and B 



358.2 19.22 7. 3.. .10. 5 
359.8 17.96 7.2. . . 10.9 

359.3 17.84 7.3.. .11.0 



2« Gl 
2)1 ^ 

3« Cg 







A and C 








1891.63 




87.0 


31.29 


. . 10.8 


2n 


^ 


1898.67 


86.6 




29-75 

A and a 


. . 10.8 


3« 


Cg 


1891.63 


199.7 


11.95 


. . I I.O 


2/1 


/8 


1898.67 


199.6 


11.83 

A and b 


..II. 5 


3« 


Cg 


1891.63 


6 6°. 6 


II 
22.09 


. . 10.8 


2 71 


/3 


1898.67 


66.1 


21.15 


. . 10.8 


3« 


Cg 



B and c 



1891.63 


328.9 


5-04 


.. .11.9 


2 71 


^ 


1898.67 


327.2 


5-03 


-- -II-5 


3/; 


c 



Discovered from iSyr to i8gg by S. W. Burnham 



/.-) 



1890.51 


192. 1 


57-32 


1890.51 


179.6 


76.01 


1890.51 


268.5 


138.87 



These faint companions were noted with the 1 8 J^ - 
inch. GL.A.SENAPP measures from A three more 
distant stars : 

o // 

...8.8 2)1 

. . . 8.9 2« 

. . . 9.6 2n 

CoGSHALL measures a 13.5 m star from A, io2?9 : 
17:53 (1898.67) I/;. 

[/3 (v)...j3 [Afon. Not. xxxv, 31)... /3 (3II4)...(3 {Pub. L. O. 
II ) . . . Glasenapp (i) . . . Cogshall ( ) . . . ] 



P 285. O. Arg. N. 17953 



R.A. 18'' 9™ 26^ 



Decl. 



25 









A and B 













// 










1874.66 


317-2 


i-5± 


8.0. 


. II.O 


m 


fi 


1877 


59 


316.4 


1.47 


8-5- 


. 10. 


m 


Cin 


i88c 


47 


315-7 


1-75 


8.8. 


• 9-7 


111 


/? 


1880 


60 


324.2 




8.0. 


. 10. 


in 


Cin 


1893 


55 


319-1 


1-57 


7-5- 


. 9-8 


m 


Lv 


1893 


70 


316.1 


1.61 


9.0. 


. 1 I.O 


in 


W 


1897 


67 


321.4 


1-49 


8.2. 


. 10. 


in 


See 


1898 


68 


318.3 


1-51 


8.2. 


..10.7 


in 


Bd 


1898 


75 


318.6 


1.63 




. 9-8 


i" 


D 






Car 


d D 








1880.47 



20.7 


1.65 


9-5- 


.10.5 


m 


/? 


1893 


70 


16.9 


2.24 


9-5- 


.11.5 


III 


W 


1897 


67 


21.7 


I-3I 


9 • 


. 12 


in 


See 


1898 


68 


18.8 


2.32 




.11.7 


in 


Bd 


1898 


75 


18.0 


1.99 




.11.1 


3« 


D 






A ar 


d C 








1880.47 



141. 


59.66 






in 


i8 


1890.50 


140.8 


60.41 


8.2. 


. 8.7 


2n 


Gl 


1893.70 


141. 


60.05 






in 


^v 


1898.68 


140.5 


59-76 


8.2. 


■ 9-0 


2// 


Bd 


1898.75 


141. 1 


60.15 
C ar 


8-3- 
id E 


. 8.8 


3« 


D 


1893 


70 



1 15.6 


30.72 


. 


. 1 2.0 


in 


W 



This pretty quadruple was discovered with the 
18^-inch. C is O. Arg. N. 17954. 

[/3 (v).../3 (A/oit. Not. xxxv, 31). . ./S'. . .Cin-i. . .Cin*. . . Lv 
(/?./. 382)... Wilson ( )...See(3.;Q6). . . Doolittle (/'«/a 
Flower Otisy. I )... Booth 10yd ( ).. .Glasenapp (l)...J 



p 760. T| Sagittarii 







R.A. 18'' 


9'" 30= 


[ 










Decl. — 


36'^ 48' 










A and B 








1879.67 


99-9 


n 

2.83 


3 • 


..II. 5 


2« 


P 


1886.71 


99-5 


4-36 


4 • 


..II 


in 


Pol 


1889.41 


107.0 


3-51 




. .11.4 


4n 


ft 


1895.72 


99.2 


3.60 


5 • 


- - 9-9 


3« 


Sel 


1896.46 


101.2 


3-65 


3-4 


..11 + 


2« 


A 


1897.38 


105-3 


3-87 


3-5 


. . 10 


2« 


See 






A and C 








1896.48 



276.2 


33-34 




.•13+ 


2« 


A 






A and D 








1879.66 



302.2 


94-38 






2;; 


ft 


1889.41 


302.8 


93.22 




. . 10 


2« 


ft 


1896.47 


303-8 


93-14 


. 




yi 


A 



Discovered with the 6-inch at Mt. Hamilton in 
1879. J^he measures at that time are subject to 
error in distance. There is probably no material 
change in the close star. The bright star has a 
proper motion of 0:126 in the direction of 288?4, 
according to the Second Washington Catalogue, and 
B appears to be moving with it. If fixed in space, 
the distance at the last measures would be 2 ."2 more 
than at the time of discovery. The faint star, C, 
was noted by Aitken with the 36-inch. The 
proper motion of A substantially accounts for the 
change in the position of the distant star, D. 

[^ (Xi)...i3=...j3 (2957)... iS {Pub. L. a II)... Pollock {Pub. 
Sydney Obsy. 1891) {Mon. Not. XLVll, 473) (Mem. K. A. 
5. l) . . . Aitken (3396) . . . Sellors (3369) ... See (3496) - - • ] 



P 246. Cord. G. C. 24920 

R..-\. iS'' lo"' 34^ \ 
Decl. — 19" 43' S 



1875.49 


108.6 


0.42 


S.c. 


. S.o 


bn 


J 


1877-57 


IOI.4 




S.O.. 


. 8.2 


m 


Cin 


1878.52 


107.0 




S.o. . 


. S.5 


in 


Cin 


1880.47 


102.9 


0.49 


7.8.. 


. 7-8 


in 


ft 


1881.59 


1 10. 


0.47 


8.1. . 


. S.I 


3" 


ft 


I8SI.6I 


1 17-3 


0.47 


8.0. . 


. S.o 


3" 


Sp 


1891.63 


105.6 


0.51 


8.2. . 


. S.2 


2n 


ft 


189S.67 


107.9 


0-51 


S.o. . 


. S.5 


m 


Cg 



176 



General Catalogue of Double Stars 



This difficult pair was discovered with the 6-inch. 
There is no evidence of relative motion. The mag- 
nitude in Gou-D is 71^. 

[/3 (v)...;8 {Hon. Not. XXXV, 31). . .^33. . .^4. . .^ (3ii4)...(3 
{Pub. L. 0.\\)...A (l)...Cin4...Cin5...Sp (11)... Cog- 
shall ( ) . . . ] 



P 463. S.D. (i6°)4797 



R.A. l8h 10™ 44= 
Decl. — 16° 54' 



1876.61 ioo± i-3±: 9.0... 9.3 \n (3 
1888.71 104.2 2.18 10.0...11.0 4« Com 

1896.50 101.3 2.22 9.0... 9.8 T,n Lv 

Discovered with the 6-inch. 

[/3 (ix). . .p (A/on. Not. XXXVIII, 78) . . .Comstock {Pub. Wash . 
burn Obsy. vl). . .Lv {A.J. 407). . .Glasenapp (11). . .] 



P 299. Lalande 33598 

R.A. iS*^ 10"" 48= ) 
Decl. — 18° 51' \ 

A and B (= Sh 263) 



1823.53 12. 1 54-3° 7 ...10 211 Sh 

1879.46 II. 5 54-32 7-0... 8.5 \n Cin 

1891.64 12.4 53-69 6.9... 7.7 271 fi 



1899.55 12.6 54-16 

B and c 

o II 

1891.64 131. 9 10.44 

A and/ 

o '/ 

1891.65 66.0 29.42 

A and h 

O II 

1891.65 327.9 22.04 

A and e 

O II 

1891.65 22.1 22.20 

e and d 



in /3 

.13.5 2fi ji 

.13.5 2« /? 

Ill (3 

in (3 



1891.65 125.3 7-II 12. 9... 12. 9 2;/ (3 

1899.55 124.1 8.27 12. 5... 12. 8 i;/ /3 

g- and h 

1891.65 317.4 8.39 13.0. ..13. 5 in (3 



The faint stars near this wide pair of South and 
Herschel were noted with the Washington 26- 
inch. All the measures of AB are given. 



[i3 (v) . . .^ {Alon. Not. XXXV, 31). 
II). ..Cin5. ..1 



.p {3114)... p {Pub. L. O. 



1823.45 
1862.72 
1877.60 
1878.66 
1879.27 
1883.29 
1890.50 
1891.65 
1893.58 
1898.49 
1899.03 



P 639. Lalande 33642 







R.A. 18'' 11"' 40=1 ,' 












Decl. — 18° 40' 












A and B 








1878.66 


155-3 


0.57 7.2.. 


• 7-7 


2n 


13 


1883.12 


137-9 


0-35 7-5- ■ 


7-5 


2n 


Sp 


1891.65 




Single 12-inch 






^ 


1892.36 




Single 36-inch 






13 


1898.50 




Elongated 355 ? 




2n 


D 


1898.58 




Uncertain 




m 


A 


1899.49 


210 ? 


Less than o".i 




211 


A 



C and D (= (3 300) 



1891.65 325.5 
1898.50 322.4 
1899.20 323.3 



8.30 

7-55 
8.07 



13.5 2« 

...13.7 2« 

7.0... 13. 8 3« 



AB-and C (= Sh 264) 



52.6 

51-5 
52.2 

51-7 
51-4 
51-3 
51.2 

52-4 

52.5 
52.0 
52.0 



16.42 
16.83 
17-37 
17-30 
17.40 

17-15 
16.67 
17.21 
16.95 

17-31 
17.27 



7 

7-2 

7-2 



7.2 
7-1 

6.9 
6.9 



/8 
D 
A 





m 


Sh 


■7 


m 


HI 





2n 


Cin 





211 


iS 





m 


Cin 





yi 


Sp 


7 


2n 


Gl. 


7 


2« 


^ 




2;; 


Sc 


7 


yi 


D 





2n 


A 



The faint star, D, was detected with the Wash- 
ington 26-inch in 1874, and subsequently the prin- 
cipal star of the wide pair was found to be a close 
pair with the i8)^-inch. If the distance in 1874 
had not been less than at the time of discovery in 
1878, I could hardly have missed it with the larger 
instrument. It is evidently in rapid motion. It 
was an easy pair in 1878, and entirely beyond the 
reach of the 36-inch under fine conditions in 1892. 

The foregoing are all the measures of the South 
and Herschel pair. These stars are evidently 
fixed. 



Discovered froin iSyi to i8gg by S. W. Burn ham 



177 



[/3 (v, x). . .^ (Mon. Not. XXXV, 31). . .^'. . ./3 (3114,3142). . . 
j3 {Pub. L. O. II)... /3 [A.J. 271)... Sp (ii)...Doolittle 
(Pub. Flower Obsy. l)...Aitken ( )...llall (H^as/i. 
Obsns. 1862). . .Cin-'. . .Cin*. . .Glasenapp (l) {A. J. 241) 
. . . Scott {Brit. Ast. Assn. v, 75 ; Vi, 250) . . . ] 



P 1274. B.A.C. 6216 







R.A. iS" 12™ 35=^ 












Decl. + 56° 33' 












B and C 








1892.37 




147. 1 


o!'88 9.8 . 


. 10.6 


3« 


/3 


1898.63 


146.2 


1. 16 10.7 . . 
B and D 


.11.6 


4« 


A 


1878.85 




5-0 


5.63 II. 0. 


. 1 1.2 


211 


/? 


1892.37 


8-5 


5-03 


. 10.4 


3« 


/S 


1898.63 


8.2 


5.01 
A and B 


.10.8 


4« 


A 


1878.85 


239-5 


96.08 7.0. 




211 


a 


1892.3s 


239.1 


95.61 6.4. 




2fl 


iS 


1898.62 


239-4 


96.10 6.0. . 




in 


A 



The wide double companion BD was noted with 
the i8i/^-inch in 1878, and the brighter of the 
two found to be a close pair with the 36-inch in 
1802. 



fi3(xix)...^ (3i4i)-.-i3 {Piib.L. O. II). 
(3585).-.] 



P 48. Lalande 33729 



, Aitken 







R.A. i8h 


IS"' 55= I 












Decl. — 


19° 43' i 













// 










1874.86 


360.0 


2-33 


8.0. . 


. 10. 


3« 


J 


1877.58 


358.7 


2.17 


8.0. . 


- 9-5 


\n 


Cin 


1880.58 


360.6 


2.36 


9.0. . 


- 9-5 


Ml 


Cin 


1886.30 


358-8 


2-51 


9.0. . 


. 9.0 


\n 


LM 


1892.56 


360.2 


2.17 


8.2.. 


. 10.2 


\n 


Lv 


1898.72 


362.5 


2.26 


8.0. . 


. 10.7 


3" 


Bd 



Discovered with the 6 inch. W'itliout change. 

[P (I). . .p (.Mon. Xot. xxxill, 351). . .J (I). . .Cin^ . .Cin«. . . 
LM...LV (A.J. 278) (Proc. lluvevford Coll. Obsy. 1892 
. . . Boothroyd ( ) . . . J 



p 1252. Lalande 33818 

R.A. 18'' IS"- 55= ) 
Decl. — 11° 55' \ 



876.70 


182.4 


1.21 


8.0. . 


. 9.0 


in 


A 


891.46 


182.7 


1.23 


8.4.. 


. 9.1 


yi 


H 


898.49 


181.3 


1.29 


8.4.. 


• 9-7 


3« 


D 



Discovered with the 181^-inch June 22, 1875, 
but inadvertently omitted from my published cata- 
logues of that time. There seems to have been no 
change. 

[^ (xviii).../3(3ii3).../3 (Pub.L. O. u)...A (i, p. 347)... 
Doolittle {Pub. Flower Obsy. i). . .] 



P 640. Herculis 443 

R.A. i8h 16" 3= \ 
Decl. +27° 28' f 

O " 

1878.91 346.2 
1884.91 340.6 

1892.38 341. 1 
1893-66 338.4 

Discovered with the 18^-inch. 
are needed. Lalande 33880. 

[^ (x)...j3-...,33.../3 (3142)... /3 (Pub. L. 0. I!)... Hough 
(3234)... HS( )...] 



2-37 


7-5- 


. 12.2 


212 


/? 


2.49 






3" 


H2 


2.20 


8.0. 


.11.5 


in 


/? 


2.38 


7 - 


-13 


1)1 


Ho 



Later measures 



P 641. Lalande 33897 









R.A. 18" 


16™ 42= 


\ 










Decl. + 


21° 27' ^ 






1878.68 


356.4 


1.07 


8.2. 


. 9.0 


i>i 


J 


1880.12 


349 


2 


1. 00 


7.1 . 


. 9.0 


S" 


/3 


1884.22 


347 


4 


1.01 






3" 


H2 


1886.29 


345 





1. 10 


7-3- 


• 9-1 


Sn 


En 


1890.45 


345 


9 


l.OI 


7-3- 


. 9.0 


3" 


ft 


1890.71 


357 


I 


1.02 






2« 


^L1w 


1891.01 


351 


6 


0.87 






4« 


Sp 


1891.79 


355 


9 


0.94 






i« 


ALuv 


1892.81 


357 


5 


0.62 


7-5 • 


. 9.0 


ifi 


High- 
ton 


1894.77 


355 











in 


High- 
ion 


1894.77 


358 


4 








m 


Sc.-x- 
bioke 


1896.61 


336 


5 


I-31 






m 


Dyson 


1896.62 


346 


5 


0.92 






A" 


Lew 


1897-53 


349 


5 


1.04 






m 


Lew 


IS97.70 


342 


3 


0.97 






3" 


A 


Discovered with the 


iS'j-inch. 


.Apparently 


there is 


chang 


e 


n angle. 











178 



General Catalogue of Double Stars 



[/S (x).../3^..jS3...j3 (3048)... /3 {Pub. L. O. II)... /I (l)... 
Engelmann (2786)... Sp (ill). . .Seabroke and Highton 
{Mem. R. A.S. Ll). . .Maw {Me?n. R. A. S. l). . .Aitken 
{A.J. 429). . .Lewis and Uyson {Mon. Not. Lix, 400). . . 
HS( )...] 

P 49- O. Arg. S. 18155 







R 


A. i8h 


17" 3= 


\ 










Decl. — 


19° 38 


\ 






1875.19 




49.1 




7.82 


8.0 


■ ii-S 


yi 


A 


1877.66 


47.2 




7.86 


8.0 


. . II.O 


\n 


Cin 


1880.52 


44-8 




. . . 






\n 


Cin 


1892.55 


46.0 




8.39 


8.3 


. .10.7 


yi 


Lv 


1897.70 


45-5 




8.31 


7-5 


. .11.8 


211 


See 


1898.47 


46.5 




8.10 


8.0 


. . 10. 


yi 


A 


1898.50 


44.6 




8.08 


8.4 


.. 9.8 


VI 


D 



Discovered with the 6-inch, 
from A two more distant stars : 



Aitken measures 



301-3 
148.3 



21.73 
24.20 



. .12 5 
. . 12.0 



1898.47 



[/3 (I). . ./3 {Mon. Not. xxxill, 351). . .J (i). . .Cin^ . .Cin«. . . 
Lv {A.J. 278) {Proc. Haverford Coll. Ohsy. 1892)... See 
(3496) . . . Doolittle {Pub. Floxver Obsy. I )... Aitken 
(35«5)-..] 



p 1203. Serpentis 191 



R.A. 18'' 19"" 575 
Decl. + 0° 43' 



1890 
1892 

1893 
1896 
1899 



67 
40 

77 
74 
46 



67.8 
66.8 
48.0 
72.6 
72.0 



0.30 
0.32 
0.25: 
0.43 



7-5 
7.0 



7.0 



7-7 
7.2 



3« 
\n 
\n 

171 



Discovered with the 36-inch. 



- 7-3 
Lalande 34015 



/3 

Sp 

Lew 

A 



[/3 (XVII)... i3 (3047,3142)... /3 {Pub. L. O. II)... Sp (in)... 
Lewis {Mon. Not. lix, 400). . .Aitken ( ) . . .] 



P 965- S.D.(i7°)si96 

R.A. iS*" 20'" 2= 
Decl. — 17° 15' 

8. 1... 1 1. 8 3« /8 
8.1 ... 12.5 3« A 
8.3... 1 1. 8 3« D 

Discovered with the i8)^-inch. Relatively fixed. 

[/3 (xrii). . ./33. . .Aitken (3585). . .Doolittle {Pub. Floiver Obsy. 
I). .-J 



1880.60 


105.6 


1-57 


1898.60 


105-3 


1.60 


1898.63 


106.4 


1.44 







P 


133- B.A.C. 


5261 










R.A. i8h 


20'" 155 


[ 










Decl. — 


26° 42' 






1875.66 


265-3 


i''8o 


7-5 


• •• 7-5 


4« 


Sp 


1876.54 


85 


5 


1-77 


7-0 


■ - 7-5 


\n 


Cin 


1877-53 


261 


9 


1.96 


7-0 


. . 7.0 


\n 


Cin 


1878.97 


263 





1.72 


6-7 


.. 6.7 


yi 


Cin 


1888.52 


264 


7 


1.80 


5-8 


.. 6.2 


2n 


Lv 


1890.49 


267 


5 


2.07 


7.0 


.. 7.1 


2n 


GI 


1892.64 


264 


4 


1.79 


7-5 


■ - 7-5 


2« 


T 


1893.65 


260 


5 


1-37 


7-0 


.. 7.0 


2« 


Sel 


1895.46 


260 


5 


2.10 






2« 


Bar 


1897.50 


259 


3 


1-75 


iy2 


.- 7% 


3« 


Sc 


1897.68 


258 


7 


1.74 


7-5 


.. 8.0 


2« 


See 



Discovered with the 6-inch. Very little, if any, 
change. The /> star of a small equilateral triangle 
of 7 111 stars, about 1° 20' j of A Sagiitarii. Gould 
gives this 6.8 m. 

\P (ill). . .^ {Mon. Not. xxxiv, 59). . .Sp (11). . .Sp (2133). .. 
Cin 3. . .Cin ">. . .Cin 5. . .Lv '. . .Glasenapp (l). . .Tarrant 
(3186) . . . Sellors (3240). .. Barnard {A.J. 447). ..See 
(3496). . .Scott {Mon. Not. LIX, 427). . .] 



P 264. D.M.(27°) 3023 



R.A. 18'' 21"" 43= 
Decl. -j- 27° 16' 



1874.72 360: 



^.5. . .12 



\n (3 



This was noted with the above description with 
the 9.4-inch of the Dartmouth College Observa- 
tory. I could not see this with the 12-inch in i8gi, 
nor recently with the 40-inch. There is no doubt 
of the identity of the star. It is described in the 
original catalogue as i" 29^/2 2315. It was noted 
as "excessively faint" with the 9.4-inch, and it is 
possible that the conipanion has no real existence. 

[/3 (v). . ./3 {Mon. Not. xxxv, 31). . .] 



p 464. w xvin. 476 







R.A. 18" 


21"^ 45= ) 












Decl. + 


6° 29' \ 








1877.17 




III. 3 


// 
1.20 


8.5-. 


- 9-5 


2« 


A 


I89I.6I 


108.2 


1.03 


8.6.. 


• 9-7 


3" 


;8 


1898.53 


108.4 


1. 12 


8.9.. 


. 9.8 


V^ 


D 



Discovered from i8ji to i8gg by S. W. Burnham 



179 



Discovered with the 6-inch. There is a third 
star II m, 90°: 25". In a low-power field with 
02 350. 

[^ (ix). ..^{Mon. Not. xxxviil, 78). . .|8 (3114). ../3 {Pub. L. 
a II) ... /I (l) . . . Doolittle [Pub. Flower Obsy. l) . . . ] 



P 134- O. Arg. N. 18233 







R.A. iS^ 21 


"59^ 


[ 










Decl. -f 46 


° 49' 






1861.32 


138% 


II 
1.24 


7.2 


.. 9.2 


2H 


OS 


1875.18 


133-7 


1.07 


7-9 


.. 9-8 


4« 


J 


1879.47 


136. 1 


0-95 


8.0 


. . 10. 


111 


P 


1896.52 


137-3 


i-iS 


7-7 


-- 9-7 


3« 


Lv 


[896.74 


127.4 


1.08 






m 


Lew 


1898.62 


135-3 


1.04 






2.11 


Bow 


1898.64 


138.4 


1-13 






2/1 


Bry 



Discovered with the 6-inch, but it had been seen 
before at Poulkowa, and is 02 543, one of the sub- 
sequently published additions to the Poulkowa 
Catalogue (^Poulkowa Observations, Vol. IX). There 
is no change in the components. 

[^(lIl).../3 {Mon. Not. X'XXIV, 59).. .(33. . .OS {Potdkowa 
Obsns. IX)... ^ (l)...Lv {A.J. 407). .. Lewis, Bovvyer 
and Bryant (Mon. Not. Lix, 418). . .] 



P II28. B.A.C. 6285 

R.A. 18'' 23'" 12= I 
Decl. — 33° 4' \ 



1877-53 


204.8 


2.41 


6.0. 


. 12.0 


I /I 


Cin 


1889.42 


198.6 


3-17 


6.1. 


.11.5 


3« 


/3 


1892.56 


201.0 




6.0. 


. t I.O 


\i/ 


Lv 



When this pair was found with the 12-inch, its 
identity with one of Howe's, discovered in 1877 at 
Cincinnati, was overlooked. The Cape Catalogue 
gives the principal star a proper motion of o.''o7 in 
the direction of i8o°. If this is correct, and the 
small star is fixed in space, its distance from the 
primary should decrease annually by nearly this 
amount. 

[Cin''...j8 (XVI)...^ (2956)... j3 {Pub. L. O. 11)... Howe 
(Cin4) . . .Lv {Proc. Haverford Coll. Obsy. 1892) . . . ] 



P 966. B.A.C. 6301 

R.A. iS'' 25"- 25= } 
Decl. — 19' 3' \ 

B and C 



1880.61 120.2 
1898.68 120.6 
1898.75 120.5 



0.62 
0.70 
0.72 



9.0. 
8.0. 



■ 9-5 3« 
• 9-5 i« 
.10.2 4« 



/3 
A 

Cg 



A and BC 



1880.58 
1898.68 
1898.75 



252.8 
252.9 
252.7 



66.34 
66.82 
66.62 



6.7... 

6.5..- 

7.0. .. 



3« ^ 
m A 
3« Cg 



Discovered with the iSj^-inch. This is the prin- 
cipal star in the cluster. Messier 25. In Hels 
6-7 m ; Gould, 754^ ; B.A.C. 7. There is a wide 
pair of small stars in the field sp measured in Cin^ ; 
i73?o : iof96 : 8.0. . .8.5 (1879.39) i^^- Glase- 
NAPP measures a very distant 7.4m star from A, 
254?2 : 43o!66 (1893.66) 2n. 

[(3 (xill).../35 (pp. 196, 299)...Aitken (3585). . .Cogshall 
( )--.] 

P 247. Lalande 34253 

R.A. iV" 25'" 36= \ 
Decl. — 9° 27 ' ^ 



1875-43 


167.4 


7.62 


7-8 


. . 11.2 


3« 


J 


1878.54 


166.9 


7.70 


8.0 


..II. 5 


\n 


Cin 


1880.59 


169.0 


7.42 


7.0 


. . 10. 


\>i 


Cin 


1888.56 


167.9 


7-99 


6-5 


. . 10.8 


211 


Lv 


1891.66 


166.8 


7.69 






2« 


Col 



Discovered with the 6-inch. Without change. 

(v)...(3 {Mon. Not. XXXV, 31)... J (i). ..CinS.. .Cin«.., 
Lv\ . . Collins {Proc. Haverford Coll. Obsy. 1S91 ) . . . ] 



P 419. Lalande 34259 

R.A. iSh 25'" 42^ I 
Decl. - 7° 55M 



1877.03 


57-6 


1.22 


8.5. . 


. 9.2 


3" 


J 


1888.52 


56.6 


1-32 


S.o. . 


. 10. 


2/1 


Lv 


I89S.5I 


46.9 


1-54 


7.6.. 


. S.9 


:>" 


D 



Discovered with the 6-inch. Change? 

1/J {vil).../3 (2103) 1 (l) ..Lv'... Doolittle {Pub. Flo-ver 

Obsy. l)...J 



i8o 



General Catalogue of Doiible Stars 



P 420. W= XVIII. 722 



1873.13 277.0 
1880.44 277.4 
1893.44 276.6 



1880.42 198. 1 
1893.44 200.5 



.A. 18'' 25-" 53= 








eel. +37° 5' 








A and B 








1.45 9-7- 


. I I.O 


4;/ 


A 


1.64 8.5. 


. 10.2 


2« 


fi 


1.80 8.8. 


.10.5 


V 


w 


A and C 








// 
21.58 


. 1 1.0 


\n 


|8 


21.42 


.11.5 


y 


W 



Discovered with the 6-inch. 
[/3 (vii). . .^ (2103). . ./33. ..A (i). . .Wilson ( 

P 642. S.D. (10°) 4718 



)...] 







R.A. iS^ 26-" 45^ 












Decl. — 10° 32' 








1878.50 




91-5 


4. II 9.0. . 


. I 1.0 


111 


^ 


1891.62 


91.4 


4.14 8.9.. 


. 10.9 


3« 


/3 



Discovered with the i8i/^-inch. One of the 
principal stars in the cluster, Dreyer 6649. 

[^ (X). . .^K . .13 (3114). . -P {P'^b. L. O. II). . .] 

P 1253. Lyrae 28 



1891. 



156.3 



R.A. iSi^ 28-" 15= ) 








Decl. + 30° 28' \ 








II 
7.44 6.2.. 


■13-5 


3« 


i3 


7.31 6.0. . 


.13.2 


3« 


A 



1898.75 157. 1 

Discovered with the 36-inch. This is the naked- 
eye star in Lyra; HEis6.5m; Harvard 5.7. La- 
lande 34418. Kustner gives this star a proper 
motion of o!'oi5 in the direction of 35o?2. 

[^ (xviii). . .(3 (3113)- ■ -^ {Puh.L. O.ii). . . Aitken (3S8s)- • •] 
P 643. Lalande 34438 







R 


A. i8h 


29-" 41^ 












D 


eel. + 


4° SO' 














A and B 








1878.23 


338.2 




8'! 8 6 




.12.5 


yi 


/? 


1891.67 


336.3 




9.27 




.12.7 


in 


li 


1898.49 


334-5 




9-39 




.12.5 


in 


D 


1898.53 


335-8 




9-59 


. 


.12.5 


V 


A 



A and C (= S 2342) 



1830.71 


IT. 9 


26.91 


5-7- 


. 8.5 


/i,n 


s 


1865.58 


9-3 


28.07 


6-5- 


. 8.9 


S" 


J 


1877.63 


9.2 


28.88 






V 


Jed 


1891.67 


7-3 


29.12 




. 8.7 


yi 


/3 


1898.49 


7-1 


29-35 


6.5. 


. 8.0 


in 


D 


1898.53 


7.0 


29.28 


6.0. 


. . 8.2 


yi 


A 



The nearest companion was detected with the 
18^ -inch. The change in SrRUVE's star is evi- 
dently due to the proper motion of A. The meas- 
ures of AC in 1830 and 1898 give this as 0^05 in 
the direction of 144", and this movement accounts 
for the change in AB. There was a time when 
these two stars were separated by a distance of 
about 2". 

[^ (x). . ./3' . . .j33. . .j3 (3114). . ./3 {Pub. L. 0.u)...p (Ast. &- 
A.-F.xm, 16). . .Doolittle (Pui. Flower Obsy. l). . .Aitken 
(3585).-.] 

There are many measures of the wide pair, of 
which enough are given to show the character and 
extent of the relative motion. All the measures 
will be found in the following : 

[Madler {Fixstern-Systeme l) {Dorpat Obsns. xi, xill, xv) 
. . .Hersehel {Mem. R: A. S. VI, xxxvill). . .A (1573). . .A (11) 
. . . Jedrzejewicz (2369) . . . Gledhill, Wilson and Seabroke 
(Mem. R. A. S. XLll, XLVlll). . .Glasenapp (in). . .] 





p 


135' Lalande 


34476 










R.A. i8'' 


31-" 16= 


\ 










Decl. — 


14° 6' 


\ 






1875.08 




184.0 


2-45 


6-7 


..11.5 


4« 


A 


1878.49 


186.6 




6.7 


. . 1 1.5 


in 


Cin 


1879.59 


183.9 


2.27 


7.0 


. . 12.0 


in 


/8 


1882.47 


187-3 


2.49 


7-0 


. . II.O 


m 


W 


1886.44 


185.8 


. . . 


7-5 


..12.5 


m 


LM 


1892.52 


187. 1 


. . . 


8.0 


. . 12.0 


m 


Lv 


1893.54 


187.6 


2.24 


7.0 


- .12.5 


271 


Lv 


1893.67 


188.8 


2.26 


7-0 


. . 12.0 


2)1 


W 



Discovered with the 6-inch. Very difificult with 
that aperture. Probably without material change. 
The distance in my single measure in 1879 is 
erroneously reduced in ^^ It should be as given 
above. 

[/3 (ill)... (3 {Mon. Not. xxxiv, 59) . . .j33. . . Zl fi). . .CinS. . . 
Wilson (Cin"). . .LM. . .Lv {A.J. 278, 382) {Proc. Hav- 
erford Coll. Obsy. 1892) . . .Wilson ( ) . . . ] 



Discovered from iSyi to i8gg by S W. Burnham 



i«i 



P 967- S.D.(i4°)si52 







R.A. 18'' 


34 


m 5s 


\ 










Decl. — 


14 


° 36' 


\ 











II 












1880.54 


195.8 


2.44 




8.0. 


. . I I.I 


An 


iS 


1888.45 


196.9 






8.0. 


. . 1 1.2 


m 


Lv 


1893.54 


191. 1 


2-33 




7.8. 


. .11.8 


3« 


Lv 


1893.60 


200.2 


2.25 




8.5. 


. . I I.O 


\n 


W 


1898.50 


194.4 


2.21 




7-9'- 


..10.5 


Z'l 


D 


1898.73 


198.3 


2-43 




8.2. 


..12.5 


yi 


Bd 



Discovered with the 18}^ -inch. Probably un- 
changed.' The magnitude in S.D. is 8.3. 

\P (xni)...,33...Lv'...Lv (A.J. 382) .. .Wilson ( )... 
Doolittle [Pub. Flower Obsy. l) . . . Boothroyd ( ) . . . ] 



P 50. D.M. (39°) 3475 



R.A. iSii 34"" 9= 
Decl. + 39° 29' 

A and B 



1892.38 6.9 21.96 8. 5... 13.0 \n /? 

1899.42 8.7 21.36 9. 5... 12. 5 \n yS 



A and C 



1892.38 330-0 73-o6 
1899.42 329.9 73.52 



\n ^ 



C and D 



1892.38 167.2 5.85 9.5...11.0 \n /3 

1899.42 168.0 6.44 10 ...II 171 ^ 

Distant double companion noted with the 6-inch. 
Of no special interest as a double star. 

[ja (I). . ./3 {Mon. Not. XXXIII, 351). . ./3 (3142). . ./3 {Pub. L. 0, 
n)...] 

P 136. W XVIII. 893 



R.A. 18'' 37"" 0^ 
Decl. + 5° 37' 



1874.84 8.0 4.39 9.2... 9.7 3« d 

1892.54 7.7 4.68 9.0... 9.2 211 Lv 

1899.44 6.8 4.60 8.7... 9.0 I// p 

Faint pair noted with the 6-inch. In D.M. 
8.6m. It is 49''/' and 6' j- of OIS 361. 

[j3 (iii).../3 (Moil. Not. WWY, 59)... J (i)...Lv (A. J. 278) 
(Proc. Haverford Coll. Obsy. 1 892) . . . ] 



P 645. Hcrculis 475 

R.A. 18'' 38^ !>" \ 
Decl. -|- 19° 21 ' \ 



877-52 


304.0 


9-9 


7.0.. 


. 12.0 


\n 


13 


877-74 


307-3 


9-03 


7-0. 


. I 2.0 


111 


J 


883.57 


305-0 


9.22 






211 


H2 


896.58 


303-6 


9-53 


7.3. 


.11.8 


yt 


Lv 


898.69 


304.9 


9-92 


7-7- 


.11.7 


v 


D 



Discovered with the 18^-inch. In my single 
measure the distance was noted as uncertain, and J 
found it very difficult. On the whole there is no 
evidence of change. Lalande 34772. 

[P (x).../3'...Zl(i)...Lv (//./. 407)... Doolittle (Pub. Flower 
Obsy.\)...\\J:.( )...] 



P 1254. W XVIII. 935 

R.A. 18'' 38'" 52= } 
Decl. — 13° 48' \ 

1875 8odz 2.5iiz 8.0. ..12.0 2« /3 

1889.67 74.5 2.43 8.0... 12.0 211 Ho 

1891.50 78.2 2.67 8.2...11.0 6;/ ^ 

1897.58 73-7 2.35 8.0...11.0 yi A 

Discovered with the 18^-inch in 1S75, but inad- 
vertently omitted from the catalogues of new pairs 
of that time. It was found independentl_y and sub- 
sequently published by Hough (= Ho 438). 

[/3 (xvm)...^ (3ii3).../3 (Pub. L. O. 11)... Hough (3234) 
. . .Aitken (3466). . .] 



p 968. 1^ Lyme 

R.A. 18'' 40" 38= \ 
Decl. +37° 29' S 



A and B 



1889.43 48. 7 26.93 
189S.63 50.7 27.04 



.157 211 /3 
.14.7 yi A 



A and C 



1880.50 275.4 43-37 ..-L^-' 2// ^ 

1S98.63 273.1 45.55 ...14.0 3« A 



l82 



General Catalogue of Do7Lble Stars 



A and D (= 2 38 App. i) 



1835-23 


149-7 


43-71 4- 


1840.71 


150.0 


43-79 


1868.20 


149.6 


43.69 4. 


1878.23 


149.6 


44-1 1 


1880.49 


149.6 


43-48 


1889.43 


149-3 


43-73 

A and E 


1880.49 


304-1 


6i'!66 


1898.63 


302.8 


61.79 



v8 



5« 


1 


V 


02 


6n 


J 


on 


Ted 


2)1 


iS 


211 


/8 



. . II.4 If! ^ 

..13.0 yi A 



The small stars, C and E, were discovered with 
the i8j^-inch, and subsequently a still fainter 
and nearer companion was detected with the 36- 
inch. 

There is no suggestion of motion in the old 
companion (= HM''. 2 = Sh 279 = 238 App 1 = 
02 (App) 173) since the measures of Struve in 
1835. AuwERS gives the proper motions of these 
stars : 



A =^ 0.027 



m 37.1 



D 



0.029 ^^ 23.8 



The measures indicate a common proper motion. 
It will have to be determined hereafter whether or 
not the faint stars share in this movement. 



[/3 (xiii).../33...,3 (2957)... iS {Fud. L. 0. ti) 
tory IV, 18). . .Aitken (3585). . .] 



. /3 [Observa- 



A few onlv of the measures of AD are given. All 
will be found in the following references : 

[OS {Poulkowa Obsns. x) . . .J (11) . . .Dawes {Mem. R. A. 
S. xxxv). . .Herschel {Mem. R. A. S. v). . .Plummer {Oxford 
Obsns. No. l). . .Radcliffe Obsns. xxi, xxv, xxvii, xxxv, 
XXXVIII. . .BAliDufisink Obsns., Partv). . .'H.3.\\{lVas/i. Obsns. 
1886) (11). . .Hunt (0(5.ff;-i'a/ory III, 605). . .Jedrzejewicz (2340) 
. . .Tarrant (2866). . .Franz {3080). . .Maiebekto {Double Star 
Measures 1892). . .Glasenapp (ll. III, iv) . . .] 



P 465- D.M.(56 = ) 2130 



1877.29 292.8 
1891.59 295.4 
1895.64 292.8 



R.A. 18'' 41"" 39= I 








Decl. + 56' 


45M 








3-15 


9.0. . 


.11.0 


21! 


J 


3-12 


8.4. 


.10.5 


yi 


/3 


3-13 


8.1. 


. 10.4 


Z" 


A 



Discovered with the 6 inch. Fixed. 

[/3 fix). . ./3 {Mon. i\'ot. XXXVIII, 78). . .;3 (3114). . ./3 {Pub. L. 
O. II). . .Aitken {Ast. Soc. Pac. VII, 305). . .] 



P5I- D.M. (39 = )3523 

R.A. i8h 41'° 42= ) 
Decl. + 39° 34' \ 

B and C 
1898.56 297.5 6.13 10. 2.. .11. 2 yi D 

A and B 

1898.56 185.2 74.65 9.0... yi D 

Unimportant triple a short distance / e Lyrae; 
noted with the 6 -inch. 

[/3 (i). . .iS [Man. Not. xxxill, 351). . .Doolittle {Pub. Flower 
Obsy.i)...\ 



P 969. S.D. (8 = ) 4726 

R.A. iSi" 43" 49= } 
Decl. — 8= 3' f 

1880.51 236.6 
1892.38 238.0 

1892.56 23S.3 

1898.70 237.6 

Discovered with the 18^ -inch. Probably fixed. 
The principal star is Xo. 219 of Schjellerup'' s Cata- 
logue of Red Stars. 

[/3 (xili)...i33...^(3i42)...(3(/'«<^.Z. aii)...Lv {A.J. 278) 
{Proc. Haverford Coll. Obsy. 1S92). . .Cogshall ( )...] 



14-33 


7.0. . 


.11.9 


4« 


P 


14. II 


7.0.. 


.11.8 


i« 


/3 


14-79 


7-5- 


.11.6 


in 


Lv 


14.26 


7-2. 


.11.5 


i" 


Cg 



p 970. 



S.D. 



') 4729 



R.A. i8h 44" 



Decl. 



8' 



15M 

8M 



1880.58 107.3 
1892.38 107.9 
1898.72 106.8 



1.43 8. 3... II. 2 4;/ /? 
1.54 8.3. . . 10.7 i/i /8 

1.44 8. 5... II. 7 yt Cg 



Discovered with the i8>4-inch. In S.D. 8.8m. 
It is closely /the last pair. 

[i3 (xni). . .(33.. .^ (3142). . ./3 (/■«#. Z. 0. 11). ..Cogshall 
( )-■•] 



Discovered from iSji to i8gg by S. W. Burnham 



P 971. Draconis 205 



R.A, iSi" 44" 245 
Decl. + 49" 18' 



1879.39 350.1 ... 8.0... 8.0 \n Cin 
1879.88 354.7 0.54 6.5. .. 8.5 211 (3 
1891.48 364.5 0.36 6.8... 9.2 3« /3 

1893.54 107.0 0.25zt ... 2/1 Lv 

1894.61 Single, 36-inch 2/1 Bai 

1897.43 II. 6 0.30 ... in Lew 

1898.70 5.2 0.36 6.5... 9.0 i/i A 

Discovered with the i8j^-inch. It is certainly a 
binary, and in rapid motion. In 1891 it had 
become a difficult pair with the 36-inch, and ap- 
peared to be rapidly closing. Three years later 
Barnard found it single with the same instrument. 
Under fair conditions 1898.56 I could not see any 
certain elongation with the 40-inch. The single 
observation of Aitken is noted as " very difficult 
and uncertain." The difference in magnitude of 
the components makes it a much more difficult 
pair than it would at first seem to be. The meas- 
ures indicate that the plane of the orbit is nearly in 
the line of sight. This is B.A.C. 0421 = Lalande 

35119- 

(/3 (XIII). . .(33. . .(3 (3ii4).../3 (F!//>. L. O. 11) . . .CinS. . . 

Lv (/4./. 382). . .Barnard (A.J. 447). . .Lewis {Mon. Not. 

Lix, 400). . .Aitken ( )...] 





p 


265. La 


lande 


35060 










R.A. 18'' 


44 


m 38S 


( 










Deck + 


II 


° 23' 






1875.29 


235-9 


I '.'46 




7-1 


. . 9.1 


i,n 


J 


1877.28 


228.4 


1.04 




9 


. . 10 


3'' 


HI 


1879-55 


235-1 


1.36 




7.0 


. . 9.2 


2/1 


0% 


1881.60 


232-4 


1-34 




7-7 


- - 9-3 


3« 


li 


1884.61 


227-8 


1.40 








2« 


H2 


1885.55 


229.1 


1-3^ 








3^' 


HI 


1888.58 


233-2 


1-33 




7-5 


.. 9-8 


2/1 


Lv 


IS89.38 


234-2 


1.46 








3" 


Maw 


1898.65 


233-3 


1.38 








2/1 


Hu 


1898.72 


235-0 


1.25 




7-8 


.. 9-8 


3" 


Bd 



Discovered with the 9.4-inch at the Dartmouth 
College Observatory. The measures show no mo- 
tion. 

[(3 (v). . .(3 [Mon. Not. xxxv, 31). . .(34. . . J (i). . .Hall (1, 11) 
...lis ( )...OS {PoiM-owa 0/niis.x)...\.y\..y\A\y 
(Mnii. A'. .4. S. I., 75). . .llussev ( ) . . . Boolliroyd 



293. p Lyme 

R.A. iS"- 45™ 39^ } 
Decl. + ly 13' f 

A and C 

O II 

1878.36 248.0 46.30 •••13 2;/ /3 

1898.65 247.6 47.13 ...13-2 3« A 

A and B (= S 39 App. \) 

O II 

1835.23 149.8 45.77 3-0--- 6.7 5« 2 

1877.64 149. 1 45-8.5 ... 12/1 HI 
1895.08 149.0 45-70 ...7.1 4« Gl 

A and D 

o // 

1898.65 68.3 64.26 ...14.3 3« A 

A and E 

o // 

1879-33 317-7 66.25 ... 9.2 yi /3 

1898.65 317.8 67.22 ... 9.7 3« A 

A and F 

1879.33 i8!8 85^78 .:. 9.0 3;/ /3 

1898.66 19.0 86.28 ... 9.0 2/1 A 

The faint star, C, was noted with the Washington 
26-inch ; and the still fainter companion, D, was 
added by Aitken with the 36-inch. Auwers gives 
the proper motion of /8 Ly/ae, o.''oo9 in the direc- 
tion of 303?6. Between 1835 and 1877 this would 
increase the distance of the Herschel star about 
of6. As the line of motion is nearly identical with 
the direction of B, the position-angle would remain 
unchanged. The measures of these stars do not 
appear to show any trace of relative motion, and it 
is therefore probable that they have the same proper 
motion. 

[(3 (v) ...^ {J/o». Not. xxxv, 31) . . ./3' . . . |33 . . . Aitken 

(3SS5)-.-] 

The measures of AB (= H' V. 3 = Sh 281 = 
2 39, App I = 02 (App) 275) will be found in 
the following : 

[Herschel {Mem. R. A. S. I v)... Dawes (Mem. K. A. S. 
xxxv). . .Rndcliffe Obsns. xxu, xxvi, xxviii. . .J (11). . .Ball 
(Dunsink Obsns. Part v)...Hall (i, p. 20)... Hunt (Observa- 
tory in, 605) . . . Engeimann (2662) .. .Tarrant (2S66) . . . 
Jedrzejewicz (2340). .. Franz (30S0). . .Glasenap|) (1. 11. iii, 
iv)...] 



i8 + 



General Catalogue of Double Stars 



P 1033- 



V ' Sarittarii 

o 



R.A. iSi^ 46" 56= \ 
Decl. — 22° 53' ) 







A an 


d B 








1888.68 




104.0 


1.86 


5-5- 


. I I.O 


\n 


/? 


1897.62 


97.0 


2.36 


5 - 


■13-9 


271 


See 


1898.48 


96.0 


2.54 




. 10.9 


411 


A 


1898.54 


106.4 


2.32 




. 12 


\n 


/3 



A and C (= H 5072) 



1837-5 


60.3 










H 


1877.66 


59-5 








\n 


Cin 


1878.52 


57-8 


29.00 


4-5- 


..10.5 


111 


Cin 


1897.65 


59-2 


28.22 




. .12.8 


m 


See 


1898.58 


59-6 


28.22 




..10.5 


3« 


/3 



The close star was discovered with the 36-inch. 
The distance in the first measure b}- an error in 
reducing was printed in /3 (xiv) i ['37. It should 
have been as given above. The proper motion of 
the principal star is o!o43 in the direction of 243?8 
(AuwERs). This in the interval covered by the 
measures would diminish the angle of B 7° and 
increase the distance 0^3 if that star was fixed in 
space. 

The foregoing are all the measures of the Her- 
schel companion. The angle appears to have 
remained constant, but this would not be affected 
by the proper motion of A. The distance of C, if 
fixed in space, should be 2f6 more than at the time 
of Herschel's observation. 

[(S (XIV)... ;3 (2875)... /3 {Ful>. L. O. II)... See (3496)... 
Aitken (3585). . .Cin". . .Cms. . .] 



P 421. W^ XVIII. 1452 



R.A. l8h 48" 3^ \ 
Decl. + 43° 15' \ 



1877.16 289.9 

1893.43 292.4 

1893.49 288.5 

1898.48 290.8 



1893-43 230.8 
1898.48 229.9 



A an 


d B 








1. 00 


9.1. . 


• 9-3 


A'l 


J 


1.09 


9.0.. 


- 9-4 


2« 


w 


0.90 


9.0. . 


. 9.2 


211 


Lv 


1.02 


9.2.. 


. 9.6 


3;/ 


D 


AB and C 








39-05 




. 9.2 


211 


w 


39-04 




• 9-1 


yi 


D 



Discovered with the 6-inch. So far without 
change. 

[/3 (vii)...^ (2io3)...zl (i)... Wilson ( ). . .Lv (^./. 382) 
. . .Doolittle {Pub. Flower Obsy. l). . .] 



P 646. 1 13 Herailis 



1877-53 159-2 
1S92.71 332.4 
1898.69 150.8 



R.A. 18'^ 49™ 41 = 
Decl. -|- 22° 30' 



B and C 

// 
7.0 12.5. ..12.5 \7l /3 

6.48 12.0... 12. 1 2« Ho 

13-0... 13-5 i« D 







A ar 


id B 






1878.68 




34-2 


35-48 


6 ... 


171 


iS 


1892.70 


31-9 


35-29 


6 ... 


171 


Ho 


1898.69 


Zl-^ 


35-63 
A ar 


id C 


in 


D 


IS78.68 



24.9 


40^68 


... 


itt 


/8 



Discovered with the 18 ^4 -inch. This star has a 
proper motion of o!'o24 in the direction of 3o5?8 
(AuwERs). 

[j3 (x). :/3i... Hough (3234). ..Doolittle [Pub. Flower Obsy. 
I)...] 



P 137- W^ XVIII. 1503 







R.A. 18'' 


49™ 4«' 


I 












Decl. + 


37° 14' S 












A and B 








1875-33 




123.8 


I-I5 


8.2. . 


8.7 


4« 


J 


1875.68 


123.9 


1-15 


8.2.. 


. 8.7 


471 


Sp 


1880.47 


126.9 


1. 10 


8.3 




8.5 


171 


^ 


1883.57 


130.2 


1-45 


8.0 




. 8.4 


671 


En 


1888.77 


127.8 


1. 17 


8.0 




8.5 


671 


T 


1891.49 


130.0 


1. 14 


8.3 




8.5 


yi 


/8 


1896.60 


132.3 


1-34 








yi 


Lew 


1896:77 


136.7 


1.47 








m 


Bow 


1897.44 


128.2 


1-47 








171 


Bow 


1897.46 


130.6 


1.24 








271 


Lew 


1898.47 


127.9 


1.29 








171 


Lew 


1898.59 


I3I-9 


I-13 


8.8. 




9-4 


y 


D 


1898.62 


127-3 


1.29 








171 


Bow 



Discovered from iSji to i8gg by S. W. Burnham 



185 



A and C 



1000.47 142.0 17-92 

1884.64 141. 9 17.68 

1896.46 141. o 18.20 

1897.47 140.6 19.15 
1898.59 141. 6 18.68 



II. 5 m ji 

1 1.5 ifi En 

III Lew 

in Lew 

II. 5 3// D 



Discovered with the 6-inch. There is no chansre 

o 

in AB unless it is a slight advance in the angle. 

[/3 (lll)...;8 (Afow. iVo/. XXXIV, S9).../33.../3(3ii4)...^ [Pub. 
L.O.n)...A (i)...Sp (2133). ..Sp (11). . .Engelmann 
(2678). . .Tarrant (2991). . . Doolittle [Fub. Flower Obsy. 
I). . . Lewis and Bowyer (ATon. Not. Lix, 400). . .] 



P 972. 



K.A. 18'' 49" 59 
Decl. — 0° 43 



Schj. 7042 
\ 



1880.42 
1892.70 
1893.49 
1893.65 



1880.42 
1893.49 
1893.65 



4-7 
5-3 
5-4 
3-0 



14.4 
14.2 
14.3 



A and B 

;; 
1.09 



o 94 
1.20 



8.9. 

8-5- 
8.6. 
9.0. 



9.6 
9.0 

9-4 
10. o 



5^' 
1)1 
211 
2/1 



Ho 
Lv 
W 



A and C 



73-58 
73-48 
73-48 



9.1 


4;; 


;8 


9.0 


2/1 


Lv 


9-5 


2« 


W 



Discovered with the i8yi-inch. 

[/3 (xin)...|33... Hough (3234). ..Lv (^. /. 382) .. .Wilson 
( )■■-] 



P 647. D.M. (13°) 3816 

R.A. i8'' so'" 295 I 
DecL + 13° 27' \ 







A and B 








1877.52 




I4.I 


i± 


9.0.. 


. 9.0 


IN 


a 


1877.72 


II-5 


1. 01 


9-0- - 


. 9.2 


211 


J 


1892.58 


8.0 


0.81 


9.0.. 


- 9-0 


\n 


Ho 


1898.57 


10.3 


1. 16 
AB 


9.0. . 
ind C 


■ 9-5 


4" 


A 


1877.72 


215-8 


19.56 


. . 


. 9.2 


2« 


J 


1885.56 


21 7.2 


19.30 




. 


VI 


deB 


1892.58 


216.5 


19.25 




. 9.0 


Ml 


Ho 


1898.57 


217.7 


19.09 




. 9.0 


V 


A 



Discovered with the 183^-inch. Change in dis- 
tance of C? 

[^ {x)...^'...A (I)... Hough (3234)... de Ball (2753)... 
Aiiken(3585)...] 



P 1255. B.A.C. 6476 

R.A. i8h 51- 37- } 
Deci. +4«M3' S 



1891.58 


880 


1.56 


5-8.. 


.12.5 


3;/ 


13 


1898.56 


88.8 


1.56 


6.0. 


.13.0 


in 


(3 


1898.64 


89-3 


1.78 


6.0. 


.12.5 


yt 


A 



Discovered with the 36-inch. A naked-eye star in 
Draco.. Heis 6m; Harvard 5.9. The measures 
of Lewls {Mon. Not. lix. 420) evidently belong to 
some other pair. 

[^ (.xvill). . .j3 (3113). . .j3 (Pub. L. 0. II). . .Aitken (3585)- • •] 



P 648. B.A.C. 6480 

R.A. i8h 52"> 30= \ 
Decl. + 32^ 45' \ 

II 
0.60 6.0. . . 9.5 

0.66 6.5 . . . 9.0 

1. 00 

1. 1 9 
1.04 
1.26 
1. 10 



1878 

1879 
1883 
1885 
1889 
1891 
1891 
1891 
1892 
1892 
1893 
1893 
1893 
1894 

1S95 
1896 
1S96 
1896 
1896 
1S96 
1896 
1897 
1897 
1897 
1897 



47 
47 
64 
61 

87 
33 
63 
84 
38 
70 

43 
49 
77 
78 
90 

45 
47 
49 
57 
62 

77 
44 
54 
70 

74 



312.5 

298.3 

273-4 
258.0 

247-4 
247.7 
249.6 
241.4 
245.6 
242.5 
246.1 
240.2 
240.8 
237-9 
237-9 
23S.7 
225.1 

231-5 
233-4 
233-2 
23-^.6 
229.1 
231.2 
229.8 
235-5 



1-37 
1.29 
1. 21 
1.26 
1.40 
1. 12 
1.22 
1.49 
1.62 
1-33 
1-34 
1-45 
1.27 
1.30 
1.36 
1. 14 

1.40 



6.0 
6.0 

6.0 

6.0 
6.0 



6.0 



6.0 



211 13 



10.3 
9-5 

9-2 

8.8 
8.8 



9.8 



8.8 



2n 
m 
III 
T.n 



H2 
H2 
Sp 

311 T 

m H2 

5^' /8 

41! Sp 

2« W 

2// Lv 
III Sp 
V Sp 
Lew 
/3 

Dy 
A 
Lv 
Lew 
Sp 
Bow 
Lew 
.V 
Br 



III 
III 
■in 



y 

3" 
m 

4" 

3" 
211 



i86 



General Catalogue of Double Stars 



1898 
1898 
1898 
1898 
1899 



40 

54 
67 
92 
34 



227.7 
230.2 
228.3 
228.2 
223-3 



■1-33 
1-5° 
1.24 
1. 21 
1.26 



9.2 



9-5 
9.0 



\n 
zn 

2?t 



A 

Lew 
Bry 
/3 



3;; A 



Discovered with the 18 >< -inch. At that time it 
was a very difficult object, but in recent years the 
distance has considerably increased, and it has been 
measurable with moderate apertures. It was cer- 
tain at the beginning that this was a binary system, 
since the two stars must have the same proper 
motion, as otherwise it would have been recorded 
as a double star long before. The principal star 
has an annual proper motion oEof23i in the direc- 
tion of i34?8 (Porter). The maximum distance 
of the companion appears to have been reached, 
and the change in angle is now slow. It will be 
impossible to form any idea of the apparent orbit 
for some time to come, but there can be no doubt 
that this will be a most interesting physical sys- 
tem for investigation in the future. This is a 
naked-eye star near y Lyrae. 




P 649. D.M. (32") 3285I 



m^ 



Scdie 

13 648 

[/3 (x).../3'.../3(3ii4,3l42)...i3 {Puh.L. O.u) .. .p (Observa- 
tory, Dec. l89i)...Sp (lU). . .Tarrant (3186) .. .Wilson 
( ) . . . Gaudibert {L Astronomic, Sept. 1892) . . . Lv {A. J. 
382, 407). . .Lewis {Mart. Not. LVI, 359) [Green-wick Obsns. 
1895). . . Aitken {3396,3585) {A.J. 4291. . .Lewis, Bowyer 
and Dyson (^/o?i. A'o/. Lix, 400). .. Aitken ( )...HS 
( ). . .Brown ( ). . .] 







R.A. i8h 


54™ 245 I 










Decl, + 


32 


°i8'^ 






T878.46 



12.8 


II 

^•57 




8.5. ..II. 7 


2« 


/? 


1891.37 


7-3 


1-59 




8.2. . . 10.6 


VI 


/8 


1897.75 


7-9 


1-44 






zn 


Lew 


1898.70 


2.8 


1.76 




. . . 


III 


Bry 



Discovered with the i8i^-inch. This pair is 13' 
s oi y Lyrae. 

\P (x)...;8^../3 (3ii4)...i3 [Pub. L. O. 11)... Lewis and Bry- 
ant {Mon. Not. Lix, 400). . .] 



1880.13 350.7 
1890.61 350.0 
1898.73 350-1 



73. D.M. (8°) 3945 






R.A. iS^ 55" 58^ ) 
Decl. -f 8°3S' i 










A and B 






1.43 9.1 .. . 12.0 


S" 


^ 


1.60 9.0. . . 11.6 


VI 


/3 


1.72 8.3. ..12.5 


yi 


Bd 



C and D (= Howe) 



1879.31 


249-3 




II. 0. 


. 12.0 


in 


Cin 


1880.13 


262.7 


2.90 


II. 4. 


. 12.0 


S" 


/« 


1890.61 


260.1 


3-24 


II. 0. 


. II. 2 


yi 


^ 


1898.73 


261.2 


3-77 


II. 8. 


. 12. 1 


yi 


Bd 






A and C 








1880.58 



20.7 


10-73 


, 




V 


i3 


1890.61 


19.8 


11.06 


. 




VI 


/3 


1898.73 


20.7 


1 1. 10 


. 




V 


Bd 



1827.67 


12.3 


10.25 


1847.66 


12.3 




1876.58 


8.8 


10.38 


1879.31 


12.6 


9-23 


1880. t6 


5-9 


9-84 


1890.60 


12.2 


10.10 


1898.73 


4.2 


10.07 



A and D (= S 2435) 

8.5... 1 1. 5 



zn 


2 


\n 


Ma 


\n 


02 


m 


Cm 


yi 


P 


zn 


fi 


V 


Bd 



The smaller component of S 2435 was discovered 
to be double by Howe at Cincinnati. In measur- 
ing this with the 18^-inch I found that the prin- 
cipal star was also double. There are but few 
measures of the Struve pair. In 1864 Dem- 
BOWSKi was unable to see the companion. In 1873 



Discovered from iSji to i8gg by S. W. Burnham 



i; 



I examined it with the 6-inch, ;ind saw it without 
difficulty, and noted it as "certainly much brighter 
than 11.5m." It was called " extremely difficult " 
by OS in 1876. 

So far there is no evidence of relative motion 
in either of the new pairs. All the measures of 
AD are given above. 

[/3 (xill). . .(33. . ./3 (3048). . .^ [Pub. L. O. 11). . .(3 (Ast. Reg. 
XIX, 120). . .Cin5. . .Boothroyd ( ). . .Madltx (Fixstern- 
Systeme II) . . . Herschel [Metii. R. A. S. xxxvill). . . /I 
(1736). . .OS {Poulkowa Obsns. x). . .] 



P 974- Schj. 7133 

R.A. i8'i 58-" 53^ } 
Decl. — 6° 21' ^ 



1880.60 


87.8 


0.72 


9.4. . 


. 9-8 


3'' 


^ 


1891.40 


84.4 


0.96 


9.0. . 


. 9.2 


211 


/8 


1898.69 


87-5 


0.91 


8.2.. 


. 9.8 


VI 


Bd 



Discovered with the i8V2-inch. There is a 12 m 
star about 25" distant in 100°. 

[/3 {xiii)...(33...,3 (3ii4)...i3 [Pub. L. O. 11). .. Boothroyd 
( )...] 



P 52. W= XVIII. 1804 

R.A. 18'^ sS"" 54^ ] 
Decl. + 25° 51 ' f 



B and C 



1896.61 171. o 
1898.73 171. 5 



1896.61 299.8 
1898.73 299.8 



8.65 
8.90 



9.6. 
10.3. 



"•5 3« 



Lv 



A and B 



51-91 
51.66 



8.2. 
8.6. 



1 1.2 5;/ D 



in Lv 
5;/ D 



Discovered with the 6inch. The distances are 
too great to make it an object of any interest. In 
the field with 2 2444. 

[/3 (i).../3 [Mon. Not. xxxm, 351). . . Lv (^./. 407). . .Doo- 
little 'yPub. Flower Obsy. l) . . . ] 

P 1285. Lalande 35740 

R..\. 18'' 59'" 31^ ) 
Decl. +33° 58' f 

A and V> 

O II 

1899.31 295.1 II. 10 7. 1... 13. 3 3// /3 



A and C 

O II 

1899.44 208.4 39-84 ...10.5 m 13 

In my Mt. Hamilton observing book of May 27, 
1892, I find this star noted with the 36-inch, " pos- 
sibly a close pair. There is a faint star 10" or 12" 
p." I have looked at this a number of times with 
the 40-inch, and measured the distant companions 
as given above, but cannot sav whether or not the 
large star is a close pair. Further observations 
with a large aperture are necessary to settle this 
point. AiTKEN found the principal star single 
1899.44 with the 36-inch on a good night with 
power of 1000. 



P 466. W XVIII. 1503 

R.A. i8h 59™ 34= I 
Decl. -{- 10^ 39' ) 

o // 

1877.73 165. I 1. 71 9.2...IO.O 2« J 

1891.77 165.9 ^-84 8.5... 9.0 2fl {3 

Discovered with the 6-inch. 

[^(ix)...i3 (Mon. Not. xxxviii, 78). . ./3 (31 14). . . j3 {,Pub. L. 
0.ii)...i(i)...] 



P 287. 1^ Aqidlae 

R.A. 18" 59-" 54' I 
Decl. + 13° 41' \ 



1874.60 


58.9 


5-53 3 ■ 


. 12 


i;/ 


New 


1878.54 


59-6 


4.92 


. 12 


3^' 


/? 


1878.90 


59-7 


5-95 3-2. 


. I 2 


y 


02 


1879.08 


61.1 


5-55 3 - 


- 15 


?,» 


HI 


1879-53 


60.1 


4-74 


-13 


4" 


/? 


1885.68 


62.4 


5.64 




2>1 


HI 


1886.89 


59-5 


5-75 




S« 


H2 


1889.43 


57-3 


5-63 


•13 


y> 


/8 


1894.38 


57-0 


6. 1 8 




IN 


Bar 


1896.64 


56.8 


5-87 




V 


Lew 


1898.61 


59-0 


5.98 


.13.2 


3" 


D 



Discovered with the 26 inch at the Naval Ob- 
servatory. AuwERs gives the proper motion of 
i, A(jtii/a€, o'.oc)6i in the direction of 203^1. If 
the small star was stationary, in twenty years its 
position-angle would diminish 10"', and the distance 
increase i.'y by virtue of the proper motion of A. 



i88 



General Catalogue of Double Stars 



It is obvious from the measures that the two are 
moving together, as there has been no sensible 
relative change. 

[/3 (v)...|3 {Mon.Not. xxxv, 31). . .j3'. . ./33. . ./3 (2957)... |3 
{Pub. L. O. 11). . .Newcombe [Wash. Obsiis. 1874). • -OS 
{Poulkowa Obs7is. x) . . .Hall (l, 11) . . .HS ( ).. .Bar- 
nard {A. J. 447) . . .Doolitlle {Pub. Flower Obsy. l) . . . 
Lewis {Mon. Not: lix, 400). . . ] 



P 359- W= XVIII. 1849 

R.A. 19'' 0™ 7^ \ 
Decl. +23° 15' \ 

o II 

1876.97 82.6 4.29 8.8...IO.O 6>i J 
1891.77 86.4 3.84 8.4... 9.3 211 /3 

1898.73 81.7 4.20 8.9... 9.7 4H D 

Discovered with the 6-inch. 

[p (vi)...(3 (2062,3114).. ./3 (Pub. L. O. \\)...A (i)... Doo- 
litlle (Pub. Flower Obsy. l). . .] 



P 1204. Aqidlae 56 







R.A. 19" 6"' \^ 


\ 










Decl. -]- 2° 25' 


\ 










A and B 








1890.56 




3-8 


0.44 7.7. 


■ 8.5 


yi 


13 


1893.24 


5-7 


0.3 + 




2.71 


S] 


1898.74 


8.6 


0-38 7-5- 
A and C 


. 8.0 


2« 


A 


1890.57 


195.0 


12.89 


. 14.0 


4;? 


/3 


1898.76 


197. 1 


13-03 

A and D 


.14.2 


3« 


A 


1890.61 


159-9 


// 
21.23 


.14.8 


V'l 


13 


1898.76 


160.6 


21.24 

A and E 


.14.8 


2?l 


A 


1890.57 


317-4 


26.30 


.14.2 


2n 


/3 


1898.76 


315-6 


26.65 

A and F 


•14-5 


211 


A 


1890.57 


292.5 


27.77 


. 14.0 


yi 


f3 


1898.76 


291. 1 


27.82 


.14.0 


211 


A 







A 


and G (- 


S 2476) 






1828.65 


209.3 


26.47 


6.7 ... II 


i;z 


H= 


1830 


61 


214.7 


31-41 


6.2 ... 1 1. 


271 


2 


1843 


70 


214-3 


32.38 




m 


Ma 


1866 


70 


214. 1 


31.88 


6.2 ... II. 2 


yi 


A 


1879 


58 


213.2 


31-42 


7.0. . . 10.7 


2 72 


Cin 


1890 


55 


213.8 


31-36 


7.1 .. . 10.2 


211 


)8 


1898 


76 


214.0 


31-52 


. . . 10.2 


3« 


A 



The principal star of 2 2476 was found to be a 
close pair with the 36-inch. That instrument 
shows four other stars nearer the Struve compan- 
ion. There is no change in this star since the first 
measures by Struve. All the measures are given 
above. The principal star is Lalande 36008. 

[(3 (xvil). . ./3 (3047). . .(3 (Pub. L. O. II). . . Aitken (3585). . . 
Sp(in). . .Herschel (Mem. R.A.S.v). . .M2iA\tx (Fixstern- 
Systei/ie l) (Dorpat Obs7ts. yi\) . . . A (11). . .CiiiS. . .] 





p 


138. La 


lande 36013 










R.A. 19'' 


gm 37s > 










Decl. — 


14° 39' S 



















1875.07 


278.3 


1-54 


7-5-- -10-9 


4« 


J 


1877-57 . 


280.2 


1.26 


7.5. . .10.0 


111 


Cin 


1880.59 


281.7 


1.09 


8.0. . . 10. 


m 


Cin 


1892.58 


280.5 


■ 0.79 


8.0. . . 10. 


111 


Ho 


1893-75 


289.8 


1. 14 


8.0 . . . 10. 


2>" 


W 


1898.57 


288.6 


1.27 


7.2 . . . 10.2 


3« 


A 


1898.71 


277.2 


1.05 


7.1 . .-: 10.8 


211 


D 



Discovered with the 6-inch. The measures are 

not very accordant, and further observations are 

needed to show whether or not there is any motion. 

[(3 (hi). . .fi (Mon. Not. xxxiv, 59). . .^ (i). . .CinV . .Cin*. . . 
Hough (3234). . .Wilson ( )... Aitken (3585). . .Doo- 
little (Pub. Flower Obsy. l). . .] 



P 139. AqiiUae 59 









R.A. 19'^ 


ym J2S 


I 












Decl. + 


16° 39' 












A and B 










1874.70 


140.7 


II 
0.79 








271 


New 


1875 


58 


137-4 


0-59 


6.7. 




8.0 


S'l 


Sp 


1875 


88 


139-5 


0.72 


6.7. 




8.0 


671 


J 


1883 


66 


140.9 


0.56 


8.0. 




8.2 


211 


Ho 


1887 


63 


140.2 


0-53 








471 


Sp 


1888 


73 


140.5 


0.61 








3'' 


Sp 


1888 


76 


140.0 


0.58 


7-0. 




8.0 


411 


T 


1898 


57 


140.9 


0.84 


7-2. 




8.1 


471 


A 


1898 


85 


140.2 


0.61 








17/ 


Maw 



Discovered from i8ji to i8gg by S. W. Burnham 



189 



AB and C (= Os (App.) 177) 

o // 

1874.96 288.3 120.76 ... 7.5 2,1! A 

1891.08 287.1 118.07 6.7... 7.7 4;? Fr 
1898.56 286.5 116.54 ... 7.0 2« A 

The principal star of this very wide pair of bright 
stars was found to be a close double with the 6-inch. 
The measures, so far, show no change. There are 
several other faint stars nearer than C ; one a 13m 
star from AB, io3?6:27f75 (1899.44). The 
change in C is due to proper motion. All the 
measures are given. Auwers gives the proper mo- 
tions of the two bright stars : 

II o 

AB 0.030 in 270.0 = Lalande 36081 
C 0.223 ii^ 148.5 = Lalande 36074 

[/3 (ni). . .|3 {Mo)i. Not. XXXIV, 59). . .Newcomb {Wash. Obsns 
i874)...Sp(n, app)...Sp {2133)... zl {\)...A (2086)... 
Hough (2978) . . . Sp (in) . . . Tarrant (2991) . . . Franz. 
(3464). . . Rechenberg (3482). . .Maw {Mem. li. A. S. Liu) 
...Ailken(3S8s)...] 



P 422. O. Arg. S. 19281 



R.A. igh 7™ 43S 
Uecl. — 18° 16' 



1879.54 44.1 ... 8.0... 12.0 \n Cin 

1891.57 44.6 12.40 8. 2... 1 1. 8 yi /3 
1898.54 42.0 12.61 7.6... 9.9 yi D 

Discovered with the 6-inch. 

[/3 (VH). . .(3 (2103,3114). . .^3 {Pub. L. O. n). . .CinS. . .Doo- 
little {Pub. Flower Obsy. i). . .] 



P 975- Lalande 36263 

R.A. 19'' 10'" i,^ \ 
Decl. -f 34° 21' f 







B and C 








1880.59 




221.8 


0.77 




■ 9-4 


y> 


/3 


1881.63 


220.3 


0.82 


10. . 


. 10.2 


3" 


Ho 


1890.63 


222.3 


0.83 


9-3- 


. 10.2 


v 


^ 



A and BC (= OS 367 ny.) 



1843-66 


229.5 


11 73 






\7l 


Ma 


1866.86 


228.1 


33-57 


6.8. . 


■ 9-3 


v 


d 


1880.59 


228.0 


33-42 


7.4.. 


. 8.9 


211 


/3 


18SI.62 


226.6 


33-54 


8 . 


. 10 


III 


Ho 


1890.63 


227.3 


33-34 


7-5-- 




111 


(i 



The close pair was discovered with the 18^- 
inch. There seems to be no material change in 
this or in 02 367 ?-e;. This was excluded from the 
last edition of the Poulkowa Catalogue by reason of 
the distance between the components. All the 
measures of these stars are given above. Hough 
measures a 12m star from A, 68?4 : 22.'95 
(1881.26) \n. 

[^ (xiii)... ^3... /3 (2341,3048)...^ {Pub. L. O. II)... Hough 
(2978) . . . Madler {Dorpat Obsns. xi). . .A (1) . . . ] 



P 140. Lalande 36185 

R.A. 19'' 10"' 12^ } 
Decl. — 11° n ' ) 

B and C 



1879.54 


206.9 


. . . 




.11.0 


ifi 


Cin 


1891.56 


209.3 


7.18 


II. 0. 


.11.2 


2fl 


/? 


1896.66 


208.6 


7.66 


10.9 . 


.11.6 


y 


Lv 


1898.59 


209.6 


7-13 






2)1 


/3 


1898.66 


209.8 


7-35 
A ai 


10.7.. 
id B 


. II. 2 


yt 


D 


1879-54 


317-9 


33-98 


8.0. 


. 12.0 


III 


Cin 


1891-55 


326.9 


36.87 


7.6. 




?," 


/3 


1896.66 


324-9 


37-30 






3« 


Lv 


1898.59 


325-5 


37.26 






2tl 


P 


1898.66 


325-9 


37-46 


7.2.. 




yt 


D 



Discovered with the 6-inch. There appears to 
be no change in either companion. There is evi- 
dently an error in the first distance of AB. With 
a correction of one revolution in reading the 
micrometer, the distance would become 37. '34. 

[ft (iii).../3 (.l/ow.AV. XXXIV. 59)...(3 (3ii4).../3 {Pub.L.O. 
II). . .CinS.. .Lv {A.J. 407). . . Doohttle {Pub. Flower 
Obsy. l)... 



P 1256. W XIX. 265 



R.A. iq'' 12"' 36^ 
Decl. + 6° 



1891.56 



!7-i 



C.64 8.3... 8.3 y, /3 



1893-77 38-2 0.51b 



i« 



1898.59 j 



6.8 



8.4. . . 8.9 yi .V 

\ii Brv 



1898.74 36.1 0.60 

Discovered with the 36-inch. The planetary 
nebula, Dreyer 6781, is 12' //. 

(/3 (.\viii).../3 (3ii3)...Sp (m)...Aitken (35S5) ... Bryant 
(A/o/i. Not. Lix. 400). . .J 



IQO 



General Catalogue of Double Stars 



P 248. 2 Vidpeculae 



R.A.. igh 12'" -iff 
Decl. + 22° 49' 



1876.ll 


125.0 


1.86 


5-7- 


• 9-5 


6« 


A 


1879.43 


127.8 


1.89 


6.0. 


■ 9-5 


\n 


^ 


1879.58 


124.2 


1-79 


5.8. 


- 9-3 


An 


OS 


1881.64 


124.7 


1.78 


6 . 


. 10 


2)1 


Ho 


1883.82 


120.0 


1.8 






1)1 


Perry 


1884.ll 


130-5 


2.08 


6.1. 


. 9.2 


bn 


En 


1885.26 


128. 1 


1.94 






S'i 


H2 


1887.76 


134.2 


2.12 


5-7- 


• 9-3 


6r! 


T 


1888.68 


125. 1 


1.69 






2« 


Maw 


1888.72 


128.2 


2.00 


5-5- 


• 9-5 


S>i 


T 


1889.51 


125.9 


1.70 






6)1 


Sp 


1890.63 


125.4 


1.86 






3« 


/8 


1891.71 


126.8 


1.92 






2)1 


Col 


1896.85 


129.6 


1.84 






2)1 


Maw 


1898.73 


127.7 


1.97 






y 


D 



Discovered with the 6-inch. A fine pair with a 
moderate aperture, but so far the measures do not 
show any relative change. The authorities assign 
no proper motion to the principal star. 

\p (V). . .(3 {Mon. Not. XXXV, 31). . ./33. . .;3 (3048). . .;8 (^Pub. 
L. 0.\\)...A[\)...A (2086). . .OS {Pub. Poulkowa Obsy. 
x)... Hough (2978). . .Perry {Eng. Mech. xxxvi, 65; 
XXXIX, 1 1) . . .HS ( ).. .Engelmann (2678) .. .Tarrant 
(2899.2991). . .Maw [Metii. R. A. S. l). . .Sp (m). . .Col- 
lins {Proc. Haverford Coll. Obsy. i8qi). . .Doolittle (Pub- 
Flower Obsy. l) . . . Maw {Mem. R. A. S. l.lll) . . . ] 



P 360. Riimker 7334 



1876.61 72.2 
1891.77 71.8 
1899.44 70-7 



R.A. 19'' 14™ 19= 
Decl. -f 35° 0' 

A and B 



6.27 8.4. . . 10. o 4« 

6.48 8.4. . . 9.7 211 

6.58 8.5. . . 8.8 \n 

A and C 



1876.61 343.4 36.57 
1891.77 342.1 36.45 
1899.44 343-1 36.94 



10.6 

"•5 
8.9 



A,) I 
2« 
\)l 



y8 



Discovered with the 6-inch. Unchanged. The 
principal star is D.M. (34°) 3494 ; magnitude 8.2. 
[^ (VI). . ./3 (2062,31 14). . .(3 {Pub. L.O.\\)...A{\)...\ 



P 141. Lalande 36553 







R.A. 19'^ 


16™ 50= 


) 










Decl. + 


22° 17 ' 


\ 










A and B 








1875-71 




81.4 


// 
0.70 


7-5 


. . 9.0 


4« 


Sp 


1875-97 


80.6 


0.71 


7-5 


. . 9.1 


6« 


A 


1876.56 


76.7 


0.77 


7-5 


... 8.5 


\n 


OS 


1885.71 


85.6 


0.84 






6)1 


HS 


1887.71 


82.5 


0.69 






2)1 


Sp 


1888.72 


78.5 


0.64 






3« 


Sp 


1890.64 


79-2 


0.80 


7-5 


.. 8.5 


3« 


!i 


1897-57 


81.6 


0.84 






\)i 


Lew 


1897.95 


78.9 


0.86 






m 


Bry 


1898.59 


80.0 


0.86 
C ai 


7.2 
d D 


.. 8.5 


3« 


A 



1897.57 183.0 5.75 10. 2... 10. 5 m Lew 

1897.95 181. 7 5.39 ... i« Bry 

1898.59 177.2 4.90 12.0... 12. 7 2>'i A 





AB 


and C 


(= H 28 


67) 






1830 


329-5 


// 

20ztz 


9 - - 


-15 


m 


H 


1875.27 


335-2 


26.53 




.11.5 


\>i 


A 


1898.59 


333-8 


28.75 


• 




2)1 


A 






AB and E 








1877-78 



90-5 


50-75 




. 1 r.o 


\n 


A 


1898.59 


90-5 


50.28 




• 9-7 


3« 


A 



AB and F 

o // 

.64 214.4 50.22 



.12.5 m A 



The principal star of H 2867 was found to be a 
close pair with the 6-inch ; and the 36-inch shows 
a faint attendant to the other star. 

[/3 (in). . .(3 {Mon. Not. xxxiv, 59). . ./3 (3048). . ./3 {Pub. L. 
O. n). . .A (i). . .Sp (11 app ; ni) . . .OS {Poulkowa Obsns. 
x) . . . Aitken (3585) . . . Lewis and Bryant {Mon. Not. Lix, 
400)...] 



p 1 129. Groomhridge 2829 



i.62 





R.A. 19'^ 18'" 51= ) 










Decl. +52° 9' S 








344-3 


11 
0.34 6.3.. 


. 6.3 


i" 


P 


340.0 


0.44 6.5.. 


. 6.5 


V 


A 



Discovered with the 36-inch. The Asf. Gess. 
Catalogue gives the proper motion of this star 



Discovered from i8yi to i8gg by S. W. Burnham 



IQI 



ofo54 in the direction of 36? 2. If that is substan- 
tially correct, this is a physical system. If either 
component was fixed, this movement of the other 
star would change the position-angle in the above 
interval not less than 80°. The magnitude in D.M. 
is 7.1. 

[(8 (XVI). . .(3 (2956). . .(3 (Pub. L. O. 11). . .Aitken (3585). . .] 



P 423- O. Arg. S. 19560 







R.A. 19I' 


20 


" 18^ ] 












Decl. — 


29 


° 44' f 








1878.63 




122.3 


1.25 




7-5- • 


8-5 


211 


Cin 


1886.78 


124.3 


1.27 








\n 


LM 


1893.68 


125.4 


1.09 




9 .. 


10 


2/1 


Sel 


1897.70 


124.9 


I-3I 




7.1. . 


8.6 


\n 


See 


1898.63 


126.5 


1.26 




8.7.. 


9.2 


yi 


D 



Discovered with the 6-inch. Apparently without 
material change. 

[/3 (vii). . .;3 (2103). . .Cint. . .Cin'. . .LM ... Sellers (3240). . . 
See (3496). . .Doolittle [Pub. Flower Obsy. i). . .] 



P 142. 



= Schj. 28). Aquilae 106 







R.A. 19'^ 


21'" 30" 












Decl. — 


12° 23' S 






1874.08 


317-7 


1-37 


7.9. 


. 8.2 


5« 


A 


1878.89 


319.6 


1-37 


7 


8. 


. 8.0 


V 


Cin 


1879.16 


319-5 


1.58 


8 


0. 


. 8.2 


A" 


Sp 


1882.54 


324-3 


1.68 


7 


7- 


. 8.0 


A'l 


w 


1883.62 


325-8 


1. 10 


7 


. 


- 7-2 


yi 


Ho 


1886.54 


327.6 


1.68 


8 


. 


.. 8.2 


in 


LM 


1888.54 


328.3 


1.60 


7 


8. 


- 7-9 


yi 


Lv 


1888.70 


326.3 


1.47 


7 


7- 


. 8.0 


yi 


T 


1893.49 


330.8 


1-53 


7 


4- 


- 7-9 


yi 


Lv 


1896.50 


333-8 


1.56 


7 


7- 


. 8.0 


2)1 


Lv 


1896.51 


331-4 


1.62 


7 


5- 


. 7-6 


211 


Soulc 


1897.69 


332-7 


1-53 


. 




4« 


Scott 


1898.65 

T? 1 


333-5 

._ ■i.l_ j.1. 


1-55 

_ /■ : 1- 




_. 




2« 


Scott 



Found with the 6-inch, and given in ^ (iii) be- 
fore I was aware of the fact that it had been dis- 
covered and published long before by Schjellerup. 
It is given here in order to say that hereafter it 
should be referred to as Schj. 28, which is the num- 
ber in his list of new pairs in A.N. 1485. There 
has been some confusion in regard to his numbers 
from the fact of two lists having been printed 



which are not identical. The other list is unnum- 
bered, and is found in the introduction to his Cata- 
logue of 10,000 Stars. Each list contains some 
stars not found in the other, but all the doubles of 
any consequence are given in A.N., and as those 
stars have a current number, that list was probably 
intended by the author to be used for future refer- 
ence. Two of the pairs given in the catalogue and 
repeated in the A.N. list are identical with double 
stars in Herschel and Struve, and it was doubt- 
less the purpose to exclude all previously known 
pairs, but that has not been entirely done. No. i 
is H 658 ; No. 5 is 2 1077 ; and Nos. 15 to 18 
inclusive are respectively 2 3090, 2 3094, 2 3096, 
and 2 3101. 

The measures of the pair given above show slow, 
direct angular movement. This star is Lalande 
36712. 

[/3 (ni)...;8 {Mon. Not. xxxiv, 59)...^ (i). . .CinS. . .Sp (n) 
...Wilson (Cm""). ..Hough (2978). . . LM . . .Lv ■. . . Lv 
[Sid. Mess, vm, 77) (A.J. 382,407). . .Tarrant (2991)... 
Souie (A. J. 410). . .Scott (Alan. Not. Lix, 427). . . J 

P 1286. W= XIX. 629 

R..-V. 19'' 21'" 39= ] 
Decl. + 35° 41' 'I 

B and C 

O II 

1899.48 67.4 1.59 9. 3... 12. 5 yi /3 



A and B 

o ;/ 

1899.48 118. 5 5.90 8.6... 



5;/ /? 



Discovered with the 40-inch in looking for the 
next pair (/3 424), which is closely nf. This star is 
noted " duplex 10" " in Weisse. As the distance is 
now less than 6", there may be some change from 
proper motion or otherwise. 



p 424. \v= XIX. 676 



R.A. iq'' 23"' 5^ \ 
Decl. + 35° 49' \ 



877.14 


38.0 


2.76 


8.7-. 


. 10. 1 


4// J 


891-77 


40. 1 


2.60 


8.7.. 


• 9-3 


2« ^ 


899.44 


39-5 


2.62 


8.6. . 


. 9-1 


211 /8 



Discovered with the 6-inch. Without change. 
[^ (vii). . ./3 (2103,3114). . .^ {I'uh. L.O.^^)...^y\)...\ 



ig: 



General Catalogue of Double Stars 



P 651. D.M.(27°)3409 



R.A. 19" 25"" 44S 
Decl. +28° 2' 



1878.47 291.5 6.36 8. 5... 12. 5 1)1 (3 

1892.38 288.6 6.44 8. 4... II. 4 2H /3 

Discovered with tlie 18^ -inch. This is 19. '5 'i 
oi /3 Cyg->n. 
[i3(x)...|S'.../3(3i42).../3(P«/.. Z. 0.11)...] 



P 650. Lalande 36958 



R.A. 19'' 


26" 20= 








Decl. + 


6° 15'.' i 








A and B 








// 

7-4± 


8.5- ■ 


.11.8 


m 


/3 


6.61 


8.1. . 


.11.6 


211 


li 


6.43 


8.7.. 


.11.2 


2>" 


D 


A and C 








lodz 


. . 




m 


/3 


1 1. 61 




•13 


2fl 


/3 


"•59 




.12.3 


3« 


D 


A and D 








25± 


. . 




m 


i8 


26.63 




. 10 


211 


/3 


26.67 




. 10. 1 


3« 


D 



I877.52 142.0 

1891.49 143.7 
1898.52 145.4 



1877-52 332-6 
1891.49 332-3 

1898.52 331.8 



1877.52 252.8 
1891.49 254.5 
1898.52 253.3 



Discovered with the 185^-inch. In the first 
instance the principal star was erroneously identi- 
fied with Lalande 36918. The correct place is 
given above. 

\P (x).../3'...(3 (3ii4)...|3 {Pub. L. O. 11). . .Doolittle {Pub. 
Flower Obsy. l) . . . ] 



P 976. Aquilac 122 



R.A. ly'' 26"^ 27" 
Decl. -f 9° 5' 



1880.59 


105.0 


2.01 


7-0- 


. 10.8 


4« 


^ 


1889.87 


106.0 


2.18 






\ii 


Sp 


1891.42 


104-3 


2.16 


7-2- 


. 10.7 


3« 


^ 



Discovered with the 183^-inch. Lalande 36963. 
[/3(xiu).../33...^ {lii^)...^{Pub.L. an)...Sp (III)...] 



P 143' Lalande 37049 







R.A. 19" 26" 39= \ 






Decl. -f 49° IS \ 


1875.61 


192.7 


11 
2.20 8.0. . . 9.1 4« A 


1893-51 


192.9 


2.15 7.8. .. 8.7 yt Lv 


1898.45 


193.2 


2.21 9.0 . . . 9.6 yi D 


Discovered w 


th the 6-inch. Probably fixed. 


|3 (III)... 


;8 {M071. . 


IVot. xxxiv, 59) ... /I (i) . . . Lv {A. J. 382) 



.Doolittle {Pub. Flower Obsy. l). . .] 



P 438. D.M. (36°) 35? 







R.A. 19'^ 27"' 3= I 












Decl. 4-36= 27' \ 












A and B 








1879.46 




40.9 


4-37 


13 


in 


P 


1891-53 


40.5 


4.05 7-9--- 
A and C 


12.7 


211 


li 


1878.47 


238°5 


II 
21.09 


13 


111 


13 


1891.52 


236.7 


21.52 


12.8 


211 


^ 






A and D (= S 2538) 






1830.85 



245-2 


53.04 8.2.. 


8-3 


211 


S 


1866.35 


247.4 


52.86 8.1... 


8.4 


3« 


A 


1886.57 


246.1 


52.91 7.9... 


8-3 


3« 


Per 


1891-53 


246.0 


53-04 
D and E 




211 


/3 


1830.87 



52.5 


// 
6.08 


8-7 


yi 


2 


1866.35 


53-3 


6.08 


8.6 


i" 


J 


1886.57 


51-3 


6.05 


8-5 


yi 


Per 


I89I.5I 


53-8 


6.06 
A and E 


8.0 


211 


i8 



111 


J 


1/1 


En 


211 


/3 



1862.64 247.4 46.81 ... 

1883.70 246.8 47.13 
I89I.5I 247.9 46.94 

The faint attendant to the principal star of the 
triple, 2 2538 (— S 719), and the little star between 
the two pairs were discovered with the i8j5^-inch. 
There is no change in the relation of the original 
components. A few only of the measures are 
given to show their relative fixity. 

[(3 (VIII). . .p {Am. Jour. Sri. July 1877). . ./3'. . ./33. . ./3 (3114) 
...j3 {Pub. Z. a II)...] 



Discovered from iSji to i8gg by S. W. Burnham 



t03 



The following include all the observations of the 
old stars : 

[Herschel (Mem. A'. A. S. iv, v). . .Madler [Dorpat Obsns. 
XI) {Fixstem-Systeme I). . .02 (Poulkowa Obsns. ix ; x, pp. 42, 
183). . .Gledhill, Wilson and Seabroke [Mem. R. A. S. xlii, 
XLlll, XLVlIl). . .Secchi {Cat. 1321 5/arj) . . . Perrotin (Antials 
Nice Obsy. \\)...A (11) . . .Engelmann (2677) . . . Glasenapp 
(III)--.] 



P 652. Piazzi XIX. 169 



R.A. igi" 27™ 16^ 
Decl. +28° I' 







A ar 


id B 








1878.97 


32 8?6 


4-33 




..13.0 


271 


/3 


1884.24 


325-3 


5-29 






in 


HS 


1892.38 


325-3 


5-17 




■ -^l-l 


y> 


fi 



A and C (= S 2539) 



1830.69 


5-2 


5-36 


7-9-- 


• 9-7 


47? 


2 


1867.03 


2.4 


5-38 


7-5- • 


- 9-3 


yi 


J 


1878.73 


3-8 


5.60 


8.0. . 


• 9-0 


\>i 


(i 


1887.78 


2.8 


5-34 


7-5 - - 


- 9-3 


A'l 


T 


1892.38 


3-5 


5-40 


8.0. . 


. 8.7 


yi 


fi 



The faint companion to the principal star of 1 
2539 (=H' II. 99 = S 718) was discovered with 
the 18^-inch. There is no change in AC since 
the first measures of Struve. 

[j3(x)...i3'...^^..|3(^./. 268).../3 (3142)... /3 (Pub. L. O. 
n)...HS( )...] 

A few of the measures of 2 2539 are given above. 
All will be found in the original double-star cata- 
logue referred to, and in the following : 

[Madler (Fixstern Sysioiie 11) (Dorpat Obsns. XI, xiu). . . 
Secchi (Catalogo di /321 Stelle Doppie) . . .Gledliill, Wilson and 
Seabroke {Mem. R. A. S. XLII, xi.lll)...-! (11). . .Tarrant 
(2898). . .Lewis, etc. {Mon. Not. lix, 421). . .] 



P 653. |x Aquilae 

R.A. 19'' 28'" 14^ \ 
Decl. -f 7° V S 







A and 


B 








1 8 78.07 


274.9 


21.42 


4-5- 


■13 


Ml 


iS 


1891.43 


276.6 


24.98 




. 


211 


^ 


1896.49 


278.2 


26.56 


4-5 • 


■13 


211 


Lv 


1898.57 


278.3 


27.29 


5 • 




3« 


A 



A and C 



1878.62 
1891.43 
1896.49 
1898.57 



285.7 
288.4 
289.0 
288.9 



21.18 
25.12 
26.58 
27-13 



13 
13 



2« /3 

2« j8 

2)1 Lv 

3« A 



B and C 



1877.51 194.4 
1891.43 195.7 
1898.57 196.4 



5-2± 

5.06 

5.22 



12.2 . . . 12.3 

II. 3.. .11.8 



\n 

2)1 

3« 



/3 
A 



These faint companions were discovered with the 
1 8 jE^ -inch. The change in the distance from the 
primary is the result of the proper motion of A, 
which is given, 0^233 in the direction of i24?7 
("AuwERs). There seems to be no relative change 
in BC. Engelhardt {Obstis. Astroti. 11, iii) has 
measured two distant stars : 



1887.65 349.7 
1899.55 347.5 



59.60 
60.94 



12.5 



9.6 



1)1 


Eng 


\1l 


/? 


2)1 


Eng 


2)1 


Eng 


1)1 


/? 



1887.65 71.9 183.06 

1894.71 71-3 182.15 
1899.55 70-9 180.78 

[/3 {x).../3-...^ (3ii4).../3 (Pub.L. C. ii)...Lv (^.7.407 
...Aitken(3585)...] 



P 1130. 9 Vtdpeciilae 

R.A. 19'' 29"" 195 \ 
Decl. + 19° 31' \ 



1889.43 


31-3 


9-53 


5-5- 


.14.0 


3" 


P 


1898.57 


31-7 


9.19 




-13-3 


3« 


/? 


1898.77 


33-0 


9-30 


5 • 


. 14.2 


V 


A 



The faint companion was discovered with the 36- 
inch. AuwERS gives the proper motion of A, o.'o27 
in the direction of 3i3°S. The interval between 
the measures is too short to say whether or not the 
companion is moving with it. 

[^ ixvi). . .^ (2956). . ./3 (P„b. L. O. II). . . Aitken (35S5). • .] 

P 654. 52 Sagittarii 

R..\. 19" 29'" 24* / 
Decl. — 25^ 9' \ 



1878.57 
1878.72 
1889.42 



I60.S 


2-93 


5.0. 


. lo.S 


3" 


/8 


163.2 


2.64 


4.2. . 


. 9-7 


2)1 


Cin 


1 59- 1 


3.00 


5-I- 


.11.5 


4« 


/J 



1 94 



General Catalogue of Double Stars 



1897.69 164.3 
1898.73 163.0 



2.89 4.8. . . 11.8 yi See 
3.02 ... 10. 1 A^n D 



Discovered with the i8>^-inch. The large star 
has a proper motion of ofo24 in the direction of 
ii4?3 (AuwERs). Further measures are necessary 
to show whether this belongs to both components. 

[/3 (x)...i3'.../3 (2957)... (3 {Ptih. L. U. II)... Cms... See 
(3496) . . . Doolittle {Pub. Flower Obsy. l) . . . ] 



P 53- D.M. (n")3902 



R.A. 
Decl. 



jgh 29m 48 ) 
+ 11= II' \ 



1875.07 246.8 1.40 9. 5... 10. 2 4;? A 

1891.72 249.6 1.43 8.8... 9.7 yi /3 

Discovered with the 6-inch. 

[/3 {i)...p(Mon. Not. xxxiIl,35i).../3 (31 14J .. ./3 (/>?</). Z. O. 
II). ..4(1)...] 

P 655. D.M. (63^) 1533 



R.A. 191^ 29™ 55= 
Decl. +63° 3' 



C and D 

O H 

1878.48 152.6 1.93 ...12.5 

A and B (= S 2549) 

o // 

7-7 
7-1 



6.7 

7-7 
8.0 



1832.24 


291.3 


21.12 


1847-39 


291.8 


21.90 


1864.61 


289.6 


22.32 


1878.48 


289.4 


22.86 


1884.65 


288.6 


22.75 


1895.64 


288.3 


23-58 


1896.57 


288.6 


23-75 


1898.59 


288.2 


24.00 


1898.60 


288.6 


24.02 



8.9 


4" 


2 




\n 


Ma 


8.8 


4« 


J 




Ml 


i8 


7-9 


4;/ 


Fr 


8.9 


2)1 


Gl 


8.9 


211 


Lv 


8.2 


2« 


A 




in 


/3 



1832.24 


278.8 


47.48 


1864.61 


277-2 


48.98 


1878.48 


276.7 


49-79 


1884.65 


276.1 


49.71 


1895.64 


275-4 


50-36 


1896.57 


275.2 


50.62 


1898.59 


275.2 


50.61 


1898.60 


275.6 


50.22 



A and C (= S 2549) 



7-1 

6.8 

7-7 



7-7 


4« 


•% 


7-3 


A'i 


A 




111 


/3 


6.6 


5« 


Fr 


7-3 


211 


Gl 


8.2 


2n 


Lv 


7 


2)1 


A 




III 


/8 







C and B 


1832.24 




89.0 


26!'88 


1864.61 


87.1 


27-45 


1878.48 


85-9 


27.63 


1895.64 


84.0 


27.93 


1898.59 


84.9 

1 ■. . 


27.86 

r .1 1 . • 1 



4;/ 


2 


4« 


J 


\n 


iS 


211 


Gl 


211 


A 



The preceding star of the wide triple was found 
to be double with the 183^ -inch. There has been 
some change in the components of 2 2549, prob- 
ably from proper motion. At least two of the 
three principal stars have some movement, as the 
distance of CB is evidently increasing. A, B, and 
C are respectively Nos. 10572, 1057 i, and 10570 of 
Kruegers A. G. Catalogue. 

[^(x).../3'...] 

The complete measures of the wide stars are 
given. The observations will be found as follows : 

[Madler (Fixstern-Sysieme l\)...A (1474)... J (11)... 
Franz (2649)... Lv (A.J. 407). . .Glasenapp (iv). . . Nobile 
{Rend. Accad. Sci. Napoli, Jan. 1S75). . .Aitken ( ). . .] 



P 1257. Lalande 37156 



R.A. 19!^ 30"" 27S 
Decl. + 10° 50' 



1891.72 175.5 3-72 6. 8... 13. 2 3;/ /? 

1898.74 178.6 4.08 7.0... 13. 2 211 A 

Discovered with the 36-inch. In D.M. 6.8 m. 

[j3 (xvill). . .^ (3113). . ./3 {Pub. L. 0. 11). . .Aitken (3585)- . .] 





p 


761. L 


acaille 8174 










R.A. 19'' 


31 


"45^ / 
° 42' \ 










Decl. — 


39 






1879.68 




197.4 


// 

2± 




8.0. . . 10.5 


yi 


^ 


1886.71 


198.7 


2-55 




7 . . .11 


\n 


Pol 


1889.42 


198.2 


2-45 




7.7. ..10.2 


I" 


/3 


1896.63 


196.0 


2-33 






3« 


See 



Discovered with the 6-inch on Mt. Hamilton in 
1879. The measures show no motion. 

[/3 (xi).. .(3^ ../3 (2957).. .p(Pub. L. a I, II). ..Pollock {Pub. 
Sydney Obsy. 1891) {Mon. A'oAXLVll, 473) {Mem. R. A.S. 
L)... See (3496)...] 



Discovered from iS"]! to i8gg by S. W. Burnham 



105 



P 249. Lalande 37227 



R.A. i9'> 32" 13' 
Decl. + 0° 4' 



1875-56 


141-7 


1.29 


7.2.. 


- 9-3 


91 


A 


1876.61 


149. 1 


1-55 


7-5- ■ 


. 10. 


in 


02 


1879.17 


141-5 


1.20 


7-2. 


. 9.2 


m 


Sp 


1884.25 


137-8 


1.76 






in 


H2 


1891.72 


137-4 


1.23 


7-4-- 


- 9-3 


3« 


li 



Discovered with the 6-inch. Little or no change 
A distant companion in 45°. 

[/3 {v)...p(Mo>!. Not. XXXV, 31)... i? (3ii4)...i3 {Pub. L. 0. 
n)...A (l)...OS {Poulkowa Obsns. x)...Sp (11)... HS 
( )---] 

P 144. D.M. (30°) 3664 







R.A. 19" 


33 


" 3^ I 












Decl. + 


30 


° 5'i 








1875-37 


351-0 


il 

6-34 




8.9.. 


. 8.9 


4;/ 


J 


1880.43 


352.1 


6.24 




8.7.. 


. 8.8 


i« 


y8 


1883.76 


350-9 


6.48 




9.1. . 


. 9.1 


6;/ 


En 


1888.77 


351-0 


6.57 




. . 




2« 


Maw 



Discovered with the 6-inch. Fixed. 

[jS (iii)...i3 {A/on. Not. xxxiv, 59). . .(33. . . zl (i)...Engel- 
mann (2678). . .Maw {Mem. R. A. S. L, 75). . .] 



P 1 131. 6 Cygni 

R.A. igh 33" 13=^ I 
Decl. + 49° 56' \ 







A ar 


id B 








1889.37 




43-9 


// 
3.62 


5 - 


--I4-3 


3« 


/8 


1892.38 


47.0 


3-79 




--14-5 


\n 


i8 


1898.46 


49-2 


3-37 






\n 


/3 


1898.63 


46.9 


3-71 


5 - 


- -14-5 


V 


A 






A and C 








1852.69 


1 86% 


29.90 




. . I i.o 


111 





1882.62 


183.8 


37-27 






in 





1898.45 


182.8 


42.16 




- -10.3 


V 


/? 


1899-55 


1S3.0 


42.30 


. 


. . 


\n 


/? 



The close star was discovered with the 36-inch. 
It is a difficult object and beyond the reach of all 
but large retractors. Auwers gives the proper 
motion of Q Cygni, o''.2^\\xi the direction of 35i?8. 



It is evident from the measures that the faint com- 
panion is moving with it, and we certainly have a 
most interesting physical system. So far the rela- 
tive change is small. The change in C is accounted 
for by the proper motion of A, which is nearly 
in the opposite direction, and therefore principally 
affects the distance. 

\p (xvi). . .(3 (2912,2956,3142). . ./3 {Pub. L. O. li). . .Aitken 
(3585). . .OS {Poulkowa Obsns. X, 105). . .] 



P 1287 

R.A. 19^ 34™ 5= 
Decl. — 16^ 36' 



1899.44 144.0 1.07 



10 ... 10 



m li 



A close pair of small stars found with the 40-inch. 
This star is not given in S.D. It is 245 .'5 from 
54 Sagittarii n\ the direction of iii?7 (1899.44). 

P 977- Lalande 37329 



R.A. ig'' 34" 19= 
Decl. + 4° 4' 



1880.70 


58.9 


3-78 


8.3- 


.12.3 


3« 


^ 


1891.63 


56.7 


4.14 


8.1. 


.11.7 


2« 


ii 


1898.62 


52.0 


3-76 


8.2.. 


-13-5 


in 


D 



Discovered with the i8i4-inch. 

/3 (xiii).../33...j3 (3 1 1 4)... (3 {/'«*. Z. an)...Doolittle {Pub. 
Flower Obsy. I) . . . ] 



P54. 



W^XIX. 1088 



R.A. 19'' 34" 49' ( 
Decl. + 29° 28' S 



1876.61 303.5 
1878.47 303.4 
1880.43 301.5 



A and C 








2 I "86 




..II. 5 


I// 


02 


20.95 




. . 1 1.0 


\v 


^ 


21.12 




. . 10.5 


Ml 


y3 



A and B (= 2 2557) 



1831.7S 104.7 

1843-77 105-7 

1868.32 104.4 

1876.61 104.2 

1879.45 103-6 



11.42 


7-3- 


.. 9.S 


3" 


2 


II. 17 






in 


Ma 


1 1. 16 


7.2. 


. 10.0 


:•>" 


J 


I 1.22 






IN 


02 


10.94 






2// 


fi 



iq6 



General Catalogue of Double Stars 



The more distant star, C, was added with the 
6-inch. Neither of the companions is likely to be 
of much interest. The above are all the measures 
of AB. The measures of J (1573) belong to H 
2888, another double of the same RA, and exactly 
10" J. 

[|8 (i). . .;3 {Mon. Not. xxxill, 351). . .^S^ . .,83. . .Madler {Fix- 
sternSyste?iie \) {Dorpat Odsns. xi) . . . A (n)...A (1573, 
1736). . .OS {Poulko-dua Obsns. x). . .] 



P 1288. 55 Sagiitarii 



R.A. igh 35-" 39^ 
Decl. — 16° 24' 



In looking over my Mt. Hamilton observing 
books I find that on June 7, 1889, I examined this 
star with the 12-inch, and recorded it as a close 
equal pair, with magnitudes 5}^ and 5^, and 
"distance less than of 2." The angle was meas- 
ured with the highest power of that instrument, 
giving 340? 7. This observation was overlooked 
by me, and the star not subsequently examined 
either with the 12 or 36-inch. As I have no reason 
to doubt the substantial correctness of the original 
observation, I give this star a place here, with the 
confident expectation that it will be hereafter veri- 
fied. Professor Aitken has examined it with the 
36-inch several times this year (1899) at my request. 
At one time there was a slight suspicion of possible 
elongation, but if double it was too close for even 
that instrument. 



P 656. Lalande 37475 







R.A. igh 


35 


"> 48= 


\ 










Decl. + 


51 


° 33' 


\ 






1878.17 


257.6 


// 
0.50 




8.0. 


. 9.2 


3;/ 


/8 


1878.33 


259.1 


0.51 




8.3- 


. 9.0 


VI 


J 


1884-57 


256-3 


0.73 




. 




211 


H2 


1890.47 


257-9 


0.69 








S" 


Sp 


1898.48 


256.0 


0.78 




8.4. 


. 9.1 


5« 


D 



Discovered with the i8j^-inch. Rogers {A. G. 
Catalogue) gives the star a proper motion of o!'o46 
in the direction of gofo. The measures show no 
relative motion. 

[/i (x). . .p\ . .^ (l). . .Sp (ill). . .Doolittle [Pztb. Flower Ohsy. 
I)...HS( )...] 



P 145. Lalande 37464 







R.A. \q^ 36™ 31^ 
Decl. + 30° 26' 






















A and B 








1875-13 


2 68!2 


o!'87 6.8.. 


9-5 


4« 


A 


1878.63 


258.1 


0.93 7.2.. 


9-7 


2« 


02 


1885.53 


264.9 


1.05 




m 


HS 


1888.78 


266.4 


0-73 




4« 


Sp 


1893.50 


266.1 


0.87 7.2.. 
AB and C 


9-7 


3« 


W 


1878.43 



32-6 


8*5 1 7.5.. 


13.0 


\n 


/3 


1879.66 


24-5 


g.62 


II. 8 


■271 


02 


1885.53 


28.5 


9.08 




\)i 


H2 


1893.50 


28.7 


9.30 
AB and D 


12.8 


2« 


W 


1876.70 


155-9 


II 
27-39 


10.5 


I« 


02 


1878.43 


157-3 


26.67 


10.8 


Ml 


/3 


1885.53 


156.9 


26.80 




\n 


H2 


1893.50 


157-6 


26.76 


II. 


zn 


W 


Discovered wi 


th the 6-inch. 








[i3(m)... 


(3 i^Mon. Not. XXXIV, 59). . ./33. 


..A (I) 


...OSiiFou 



kowa Obsns. x) . .. Wilson ( ) . • • } 



P 827. Lalande 37470 



R.A. 19^ 38"> 75 



Decl. 



268.0 
269.9 
1893.76 264.5 



1881.62 
1888.05 



0.87 
0.98 
1.02 



II 29 

8.3.. 
8.5.. 
8.5-- 



9.1 
9-5 
9-7 



3« 



Com 
W 



Discovered with the i5i/<-inch at the Washburn 
Observatory. The measures credited to this star 
by Collins i^Proc. Haverford Coll. Obsy. 1S91) 
belong to a new pair 15 ' n ol (id,2-]. It is somewhat 
similar to this in angle and magnitudes. Collins 
gives 25i?8 : i ."34 : 8.5. . .9.5 (1891.72) 2n. 

[j3 (xil). . .(3^ . .Comstock [Pub. Washburn Obsy. vi) . . .Wil- 
son ( ) . . . ] 

P I132. W= XIX. 1204 



1889.56 


227.3 


0-49 


1897.68 


227.1 


0.47 


1898.82 


225.2 


0.42 



R.A. 19'' 38" 11= 
Decl. + 26° 39' 

/; 

8.3. 



8-7 



8.3.. . 9.0 



yi 


P 


211 


Lew 


2H 


A 



Discovered from i8']i to i8gg by S. W, Burnham 



IQ7 



Discovered with the 36-inch. 

[;S (XVI). . ./3 (2956). . ./3 {Pub. L. O. II). . .Lewis {Mon. Not. 
Lix, 400) . . . Aitken (3585) . . . ] 



P 657. W^ XIX. 1209 

R.A. ig'' 38'" 40^^ 
Decl. + 22° 21 ' 

o /; 

1877.74 140. 1 0.93 9.2...IO.O 211 /J 

1878.78 144.4 o-QO 9. 2... 10. 7 \)i (3 

1892.71 328.2 0.80 9.0...10.0 2u Ho 

1898.65 147.7 °-84 9.0...10.0 3;/ A 

Discovered with the 18^-inch. The change, if 
any, is slow. 
[^ (X). . .13'... A (I). . .Hough (3234). . .Aitken (3585). • ■] 



P 658. B.A.C. 6762 



R.A. ig'' 3g™ 1 = 
Decl. -|- 26° 51 ' 



1878 



I 
I 

I 

I 

1889 

t897 

i8q8 



53 295 



62 
68 
16 
56 
86 

63 

72 



295 
286 
290 
299 
297 
291 
310 



0-57 
0.63 
0.51 
0.56 
0.50 

0-4S: 
0.50 

0-59: 



6.5 
7.0 

6.5 
6.7 



6.0 



10. o 
10. o 
10. o 

9-7 
10.5 



m 
m 
in 

y 

271 



OS 

Perry 

H2 

/3 

Sp 

Lew 

D 



Discovered with the 181^-inch. Relative change 
is not very certain, but the components evidently 
have the same movement in space. The proper 
motion of the principal star is 0^062 in the direc- 
tion of i95?o (AuwERs), and this is therefore a 
physical system. 

r/3 (x). . .j3'. . .(3 (2957). . ./3 [Pub. L. O. II). . .OS (Poidko7ca 
Obsns. x). . .Perry {Ens;. Mech. xxxvi, 65). . .Sp (m). . . 
Doolittle [Pub. Flower Obsy. l) . . .Lewis [Mon. Not. i.ix, 
400)... HS( )...] 



P 467- O. Arg. S. 19936 







R.A. 


19'' 


39 


■" 24= 


; 














Decl. 


— 


21 


° 49' 










1879.61 


i35°o 


2 


61 




7-7- 




10 





211 


Cin 


1886.72 


131-2 


3 


04 




7.8. 




10 


7 


y 


LM 


1892.52 


134-2 


3 


13 




8.0 




IT 





III 


Lv 


1897-75 


136-7 


3 


27 




7-5 




10 


.8 


III 


See 


1898.62 


133-4 


3 


07 




7-5- 




10 


7 


y 


D 



Discovered with the 6- inch. Probably without 
change. 

[/3 (IX). . ./3 (Mon. Not. xxxvil, 78). . .CinS. . .LM. . .Lv {A.J. 
278) [Proc. Haverjord Coll. Obsy. 1892)... See (3496)... 
Doolittle [Pub. Flower Obsy. I). . .] 

P 468. Lalande 37571 

R.A. igh 39™ 58^ ; 
Decl. + 3'- 57' \ 



1876.97 


182.4 


9-55 


7.0. 


.11.3 


y 


A 


1878.58 


181. 1 


9-77 


7-0. 


.10.5 


in 


OS 


1884.60 


182.2 


9.72 






2 71 


H2 


1891.63 


183.0 


9.81 


6.6. 


. I I.O 


271 


^ 


1899.42 


183.0 


9-58 


6.7. 


.11.5 


211 


/? 



Discovered with the 6 -inch. 

[/3 (IX). . ./3 (Mon. Not. xxxviir, 78). . ./S (3114). . .^ (Pub. L. 
0.\\)...A (i) ... OS {Poulkowa Obsns. x) . . . ] 



P 146. Lalande 37544 







R.A. igh 


40 


m 5s 1 












Decl. — 


20 


Mo'i 













// 












1873-50 


290 + 


I ±: 




9.0. . 


.10.5 




/? 


1879-57 


301.8 


0.91 




8.3.. 


. 9.0 


in 


/3 


1879.64 


295-7 


1. 00 




8.0. . 


. lO.O 


m 


Cin 


1891.73 


308.4 


0.91 




8. 1.. 


- 9-2 


y 


/3 


1893.70 


3I5-I 


1.07 




8.0. . 


• 9-3 


y 


AV 


1897.74 


305-8 


1.09 




8.1. . 


. 9.2 


VI 


A 



Discovered with the 6-inch. In a low-power 
field with 56 Sagittarii, 43^ /and 7 .'4 .f of that star. 

[/3 (in). . .l3(AIon. Not. xxxiv , S9) ■■■ P^ ■ ■ -P (jIM")- - ./3 (/'«*. 
Z. 0. II)... Wilson ( )... Aitken (.^./. 429)...] 



P55. 

R.A. 19'' 40" 30^ ) 
Decl. + 10° 16' ) 

A and B 

1891.73 28. 3 3.69 9.6... 9.7 271 /3 

1898.57 30.2 3.67 ... 171/3 

A and C 

O II 

1898.57 260.6 33.26 ... 9.6 17/ /3 

A pair of small stars about 3' j of -y Aquilac. 
Not in the D.M. 

[,8 (i)...i3 (.]/,)«. Not. xxxm, 351)... /3 (3ii4).../3 (Pub. L. 
0.\\)...\ 



iq8 



General Catalogue of Double Stars 



P 828. D.M. (5) 4290 

R.A. 19'' 41'" 3= \ 
Decl. + 5" 52 \ 



1881.64 


10. I 


2.87 


8.3.. 


. 10.2 


yi 


^ 


1887.92 


5-6 


3.02 


8.0. 


. 10. 


411 


Com 


1891.73 


9.0 


2.74 


8.3. 


. 10.2 


i" 


i8 


1899.42 


9.4 


2-57 


8.3. 


.10.5 


211 


/3 



Discovered with 155^ -inch at the Washburn Ob- 
servatory. Without change. 

[/3 (xil). ../3^ . ./3 (3ii4).../3 [Pub. L. O. 11). . .Comstock 
[Pub. Washburn Obsy. vi). . .] 



P 147- D.M. (31°) 3770 



R.A. igh 42"^ 16^ 
Decl. +31° 48' 



1875-37 


298.8 


8.66 


8.7 


. . 10.6 


4" 


J 


1877.67 


300.4 


8-55 


8-5 


. . 10. 


211 


Sp 


1893-54 


297.6 


8.86 


8-3 


- - 9-3 


V 


Lv 


1898.60 


297.4 


8.70 


8.2 


• - 9-5 


y 


D 


Discovered wi 


th the 6- 


inch. 


No mo 


tion. 





[(3 (in). . .^(Mon.Not. xxxiv,59). . .J (i). . .Sp (11, p. 137). . 
Lv {A.J. 382). . .Doolittle {Pub. Flower Obsy. l) . . .] 



P 829. D.M. (5°) 4299 







R.A. igh 


43 


- 2^ I 












Decl. + 


5 


°27't 








1881.65 




312.0 


0.72 




8.4.. 


. 8.8 


yi 


/8 


1887.71 


314-2 


0-93 




8-5 -- 


. 10. 


3« 


Com 


1892.52 


319.0 


0.80 




8.0. . 


. 8.6 


211 


Lv 


1892.70 


306.6 


0.60 




8-5-- 


. 8.7 


1)1 


Ho 


1896.54 


308.6 


0.72 




8.0. . 


. 8.7 


4« 


Lv 


1898.64 


308.9 


0.83 




8.2. . 


. 8.6 


3« 


A 



Discovered with the 155^ -inch at the Washburn 
Observatory. The measures are not consistent in 
angle, but there is probably no material change. 

[/3 (xil). . ./S^. . .Comstock [Pub. Washburn Obsy. Vl)...Lv 
{A.J. 278,407) {Proc. Haverford Coll. Obsy. 1892)... 
Hough (3234) • - • Aitken (3585) - - - ] 

P 361. W^' XIX. 1429 







R.A. 19'^ 4S"> 7= ) 
Decl. + 22° 22' \ 








1875.89 

1892.52 


350-0 
350-0 


u 

3.49 9.2... 
3.96 9.0... 


9.9 
9.1 


4;/ 

21! 


Lv 



Discovered with the 6-inch. In a low-power 
field with 12 Vulpcculae. 

[/3 (VI) ...^ (2062) ...A (1) . . . Lv (^. /. 278) {Proc. Haverford 
Coll. Obsy. 1892). ..] 

P 148. Lalande Ji'j'jjg 



R.A. 19'' 45" 27= 
Decl. — . 10° 40' 

A and B 



1875.26 333.2 

1879-25 331-2 

1888.51 325.9 

1891.63 323.3 

1893.66 322.5 

1898.75 321.4 



0.91 
0.87 
0.79 
0.78 
0.78 
0-95 



.9. 


. 8. 


.8. 


. 8. 


.0. 


. 8. 


-4- 


- 7- 


.8. 


. 8. 


.9. 


. 8. 



3 


4« 


J 


4 


i;z 


Cin 


5 


1?7 


Lv 


7 


211 


iS 


5 


4« 


W 


4 


yr 


D 



A and C 



1891.63 
1893.62 
1898.75 



64.7 

63-3 
64.0 



26.32 
26.51 
27-13 



•- -13-5 
. . . 12.0 
. . . 12.6 



2)1 
1)1 

3« 



i3 

W 

D 



Discovered with the 6-inch. There seems to be 
slow retrograde motion in the angle of the close 
pair. 

\^ (iii).../3 {Mon. Not. xxxiv, 59).../? (3ii4)...i3 [Pub. L. 
0.ll)...A (i).. .CinS. . .Lv'.. .Wilson ( ).. .Doolittle 
{Pub. Flower Obsy. i).. .) 



P 978. W^ XIX. 1470 



R.A. 19^ 


46"" 22^^ ] 








Decl. + 


23 


°I3M 








0.94 




8.3-. 


. 8.4 


yi 


/8 


0.99 








4« 


Sp 


1.05 




8-5-. 


- 8.5 


3« 


A 



1880.48 234.2 

1889.84 235.6 
1898.64 233.8 

Discovered with the i8}<-inch. 
[^ (XIII). . ./3^ . .Sp (III). . .Aitken (3585)- - -] 

P 979. W" XIX. 1496 



R.A. igii 46"" 57= 1 








Decl. -f 22° 58' \ 








2.24 8.3.. 


.11.1 


3« 


/? 


2.25 8.1. . 


.11.5 


4>t 


Lv 



IS80.49 338.7 
1893-53 335-9 

Discovered with the 18^^ -inch. 
[^(xiii)...j33...Lv (^.7.382)...] 



Discovered from ^Sji to i8gg by S. W. Burnham 



1 99 



P 659. Riimker 7844 



K.A. 19'' 48"" 48= 
Deal. + 6° 50' 



1878.62 316.0 

1884.58 314.2 

1891.50 315.6 

1898.68 314.5 



12.32 
12.13 
12.39 
12.47 



6.5. ..12.5 iti (3 

211 HS 

6.6. ..12.5 5« /3 

6. 7... 12. 3 yi D 



Discovered with the 18}^ inch. The change, if 
any, is smalL This is D.M. (6°) 4351, 7.0 m. 

[/S (x)...i3'...)3 (3ii4).../3 {Pub. L. O. 11) . . .Doolittle {Pub. 
Flower Obsy. l) . . . HS ( ) . . . ] 





p 


830. Lalande 37916 










R.A. igh 


49"" 0" ] 










Decl. — 


1° 9'^ 






1881.74 




106.4 


2.72 


8.0. . . I 1.2 


211 


i8 


1886.80 


106.3 


2.69 


7.7. ..12.0 


2/1 


Ho 


1886.87 


105.6 


2.90 




211 


UL 


1887.81 


106.0 


2.81 


8.2.. .11.8 


VI 


Com 



Discovered with the 15^-inch at the Washburn 
Observatory. Without change. 

[/3 (xil). . ./3=. . .Hough (2978). . .Updegraff and Lamb {Pub. 
Washburn Obsy. v) . . .Comstock {Pub. Washbtirn Obsy. 
VI)...] 



P 980. T) Cygui 







R.A. 19'' 51 


M8= { 










Decl. + 34 


" 46' \ 










A and B 






1879.89 




209.6 


7.07 


5 ---13 


5« 


/3 


1887.27 


207.3 


7-44 




5« 


HS 


1889.51 


2 10.4 


7.21 


4 - --13 


4« 


fi 


1898.56 


208.2 


7-23 


. ..13 


211 


/3 


1898.91 


209.0 


7.70 


4 ...14.2 


2)1 


A 



A and C (= H 1455) 



1828 332.0 3o±: 

1879.47 325.3 46.17 

1889.51 326.2 46.08 

1898.56 326.2 46.00 



. .18 


1)1 


H 


..II. 5 


\>! 


/3 


. . I I.O 


2)1 


/3 


..12.5 


211 


^ 



A and D (=■ H 1455) 



1828 I70±: 

1879.47 170.0 

1889.51 169. 1 

1898.56 168.0 



1898.56 247.3 



20lb 




. .t8 


If! 


H 


49-52 




..II. 5 


1!/ 


/3 


49.82 




. .10.7 


2/1 


ft 


49-65 




..12.5 


2/1 


ft 


A ar 


id E 








61.72 


. 


. .12.5 


171 


ft 



The faint companion was detected with the 183^- 
inch. Au\VER.s gives the proper motion of -q Cygni 
as 0^046 in the direction of 23i?o. This move- 
ment would increase the distance of B, if fixed, 
about o''4 in the time covered bj' the measures. 
The object is not an easy one to measure, and it is 
impossible at this time to say whether these stars 
have the same proper motion. The probabilities 
are that they form a system. The relation will be 
apparent from the measures of the ne.xt few years. 

The distant stars, C and D, noted by Herschel 
[Foti/-th Catalo°;ue),c3j\ only be optical companions. 
All the measures of these stars are given. 



\P (xm). . .j33. . ./3 (2957). . ./3 {Pub. L. O. 11). . .H2 
Aitken (3585). ••] 



P 831. D.M. (47°) 2955 



( )... 







R.A. 19'' 


51 


"^59= } 












Decl. + 


47 


° 4M 








1881.46 


I2S°0 


0,94 




8.6. . 


. 9.0 


2," 


ft 


1888.20 


128.3 


0.92 




8.9.. 


. 9-6 


An 


Com 


1898.59 


128.4 


1.08 




8.6.. 


• 9-3 


V> 


D 



Discovered with the 15^-inch at the Washburn 
Observatory. AVithout change. 

[/S (xii). . ./3=. . .Comstock {Pub. Washburn Obsy. vi). . -.Doo- 
little (Pub. Flower Obsy. l). . .] 

P 266. W' XIX. 1282 







R.A. ig" 


52 


m 13s j 












Decl. + 


II 


3, j 








875-31 


167.3 


15-65 




7.2.. 


.11.3 


3« 


J 


892.57 


167.0 


15-94 




S.O. . 


. I 1.0 


Ml 


Lv 


898.55 


166.4 


15-55 




7.5. . 


• 9-5 


V 


D 



Discovered with the 6-inch. 

[/3 (v).../3 {Moil. Not. XXXV, 31)... J (i)...l.v (.././. 278) 
{Proc. Haverford Coll. Obsy. 1S92 ) . . . Dooliltle {Pub. 
Flo'Wir Obsy. 1) . . . ] 



200 



General Catalogiie of Do7ible Stars 





p 


425. La 


lande 38087 










R.A. igh 


52"" 15= ) 
19° 5«' \ 










Decl. + 










A and B 






1876.29 




24-3 


1.26 


8.8. 


. 9.0 


V^ 


J 


1879-55 


241.2 


1. 41 


83-. 


. 8.4 


3" 


/3 


1883.46 


63-7 


1.70 


8.4. 


. 8.6 


6;/ 


En 


1891.50 


242.1 


1.30 


8.4. 


- 8.5 


3;; 


/3 


1896.61 


242.1 


1.28 






111 


Lew 


1898.58 


241.5 


1.32 






5" 


Bow 


1898.66 


240.9 


1-39 


8.5- 


- 8.5 


A" 


D 


1899.60 


237-4 


1.25 






m 


Bar 






A and C 






1879-55 




40.4 


19.81 


. . . 12.0 


V 


^ 


1898.66 


39-5 


19.85 


. 


. 10.9 


411 


D 



[^ 



Discovered with the 6-inch. Fixed. 

:vil). . ./3 (2103,3114). . ./3-. . ./33. . .(3 [Pub. L. O. u)...A 
(l). . .Engelmann (2678). . .Lewis and Bowyer {Mo7i. Not. 
Lix, 400). . .Doolittle {Pub. Floiuer Obsy l)... Barnard 



P 981. W^ XIX, 1687 







R.A. 19'' 52" 40^ 


. 










Decl. + 20° 13' 












A and B 








1880.31 




III. 4 


3.07 8.0.. 


.11.4 


4« 


/3 


I89I.5I 


109.7 


3-32 8.2.. 


. 10. 


in 


/3 


1898.55 


109. 1 


2.86 8.7. 


.11.9 


3« 


D 






A and C 








1880.48 


5 8° 8 


// 
32.10 


. 


i« 


ii 


1898.55 


58.5 


32.61 


.10.7 


3« 


D 



Discovered with the i8j4-inch. 

[/3 (xin). . ./33. . .(3 (3114). . .^{Pub. L. O. 11). 
Flower Obsy. l). . .] 



P 149' Lalande 38105 



R.A. 19'^ 52"" 47= 
Decl. + 16° 10' 



.Doolittle {Pub. 



1893.54 199.8 
1898.64 199.5 



B and C 

// 
8.32 9.9 . . . 12.5 \n Lv 

8.38 8.5... II. 5 yi A 



A and B 

o /; 

1893-54 278.6 126.57 6.5... 3// Lv 

1898.64 278.6 127.75 7-0... 3// A. 

Distant double companion noted with the 6-inch. 
Probably unimportant. The principal star has a 
very small proper motion of ofoo5 in the direction 
of 324? 2 {Berlin A. G. Catalogue). 

[/3 (ni). . ./3 (Mon. Not. xxxiv, 59). . . Lv {A.J. 382). . .Aitken 
(3585)...] 



P 469. W= XIX. 1757 



R.A. 19^ 54" 28= 
Decl. -|- 24° 24' 



1877.01 175.4 14.43 8. 3... 10. 7 yi J 
1891.50 177.3 14-34 8. 1... 10. 8 3« ^ 

Discovered with the 6 inch. Too wide to be of 
any interest as a double star. 

[;3 (IX). . .j3 {Afo)/. Not. xxxvill, 78). . ./3 (3114). . ./3 [Pub. L. 
aii)...^(l)...] 



P II33. Lalande 38224 



R.A. igh 54" 56= 



1889.56 
1897.67 
1897.79 
1898.73 



338.6 
335-4 
335-3 
337-4 



Decl. +31° 30' 

o!'87 6.8.. 

0.68 

0.93 

0-73 



9-5 



3« /3 

2n L 

3« A ■ 

\n Bow 



Discovered with the 36-inch. 



[j3 (xvi). . .j3 (2956). . ./3 {Pub. L. O. n). . .Aitlcen [A.J. 429) 
. . . Lewis and Bowyer {Mon. Not. LIX, 400) . . . ] 



P 1258. D.M. (2q") 3838 



R.A. 19*' 55™ 26= 
Decl. + 29° 35' 



1878 
189-1 
1897 
1897 
1898 

In 

first 



.41 

-49 
.78 

•79 
-73 



159-9 
157-4 
153-2 
153-9 
156.3 



1.52 

1-45 
1.23 
1.56 
1-35 



8.0 
8.0 

8.0 



. 12.0 
.10.8 

. 10.8 



\n 
2," 

\7l 

3« 
\n 



/8 
/3 
L 
A 
Bow 



attempting to remeasure /8 439 in 1878, the 
observation given above was made. It was 



Discovered froTn ^8yi to i8gg by S. W. Burnham 



20I 



evidently a case of unusual motion in a pair of this 
kind, or of mistaken identity. The matter was 
investigated with the 36-inch, and it was found that 
the measure of 1878 belonc^ed to a new pair 30^/ 
P 439. There is no obvious change in the com- 
ponents. 

[/S (xviii).../3 (3ll3)...i3'.../3 (Pitb. L. O. 11) . . . .\itken (^. 
J. 429). . .Lewis and Bowyer (Mon. A'ot. Lix, 400). . .] 



P 439- D.M. (29^) 3845 







Decl. -|- 29° 30' 








1876.80 


249.7 


2^70 8 . 




I// 


/8 


1891.50 


248.2 


3-05 7-9-- 


.12.7 


yi 


a 


1897-75 


241.8 


3-28 


. 


m 


L 



Discovered with the i8j^-inch. The measure in 
;8', credited to this pair, really belongs to anew 
pair in the field «/. (See /? 1258.) 

[/3 (vill). . .;3 {Am. Jour. Sci. July 1877). . ./3 (3114). . .(3 {Fi,b. 
L. O. a) . . . Lewis [Mon. Not. lix, 400) . . . ] 



P 1289. W= XIX. 1835 



R.A. igh 56" 38^ 
Ded. + 37° 23' 

A and B 



O II 



1899-32 57-7 0-84 8.3... 9.2 yi /3 

A and C 

... 9.0 3;/ /3 



o // 

1899.32 90.0 21.51 



The close pair was discovered with the i8>^j-inch 
July 13, 1880, but forgotten at the time, and only 
found upon a recent examination of the old ob- 
serving records of twenty years ago. The meas- 
ures given above were made with the 40-inch. C 
is W"" XIX. 1838. The distance from the meridian 
positions of 1825 is 22!4i. 

P 56. Lalande 38343 



1875.43 162.2 
1879.26 164.3 
1886.73 165.0 



R.A. I9i> 58'" 47^ 
Decl. — 4" 39' 



1. 61 8.2 . . . 9.2 4// J 

1.57 7-7- - • 9-0 3" Cin 
1.65 7-9- • • 8.9 3« LM 



1888.57 165.6 1.70 7-7. -. 9-0 iJi Lv 

1892.70 168.2 2.43 7.5... 9.1 1)1 Gl 

1896.52 165.7 1.55 8.0... 8.9 yi Lv 

1898.62 167.4 1. 71 ... ifi Cg 

1898.63 166. 1 1.55 8.2... 9.5 yi Bd 

Discovered with the 6-inch. Probably fixed. 

I 
[j3 (i)...(3 [Mon. Not. xxxni, 351)... 4 (i). . .CinS. . . L.M . . . 
.. . . Lv' . . . Lv [A. J. 407) . . . Glasenapp (ll) . . . Boothroyd 
and Cogshall ( ) . • . ] 



p 426 and p 427. O. Arg. N. 19938 



R.A. ig"" 59" 13=^ 
Decl. + 54' 18' 



A and B (= ^ 426) 

o // 

1877.05 310.0 5.75 8. 2... 10. 2 6// J 

1884.49 311-5 6.02 8. 3... 10. 1 6« En 

1893-49 310-1 5-71 8. 1... 10.7 3;/ Lv 

1898.48 308.8 5.78 8.6... 9.1 in D 

C and D (=/3 427) 

o // 

1877.05 336.5 3.01 8.I...IO.O 611 J 

1884.49 337-3 3-18 8.3... 10. o 6// En 



1893.49 


335-7 


2.93 8.3. 


. 10 


5 


y 


Lv 


1898.48 


333-8 


2.90 8.5. 
A and C 


- 9 


5 


i>i 


D 


1877.18 



53-3 


;/ 
166.17 


. 




4« 


J 


1884.78 


53-4 


165.99 






2tl 


En 


1898.48 


53-2 


164.64 






3" 


D 



The two pairs, forming a wide quadruple group, 
were discovered with the 6-inch. All are probably 
relatively fixed. C is O. Arg. N. 19952. 

[/3 (vii). . ./3 (2103). . .J (0. . .Engelmann (2742). . .Lv (A.J. 
382). . .Doolittle [Pub. Flower Obsy. i). . . ] 



P 57. Lalande 38415 

R.A. 19" 59™ 55' \ 
Decl. -|- 15'' 9' S 



[875.10 


II8.9 


2-33 


6.2. 


. 10.6 


4" 


J 


1876.60 


120.7 


2.09 


6.5. 


. 1 0.0 


Ml 


0^ 


1877.70 


123.4 


2.50 






\tl 


^ 


1884.31 


121. S 


2-53 






•>" 


H2 


1891.50 


I1S.3 


2.60 


6.7.. 


.11.3 


0" 


/3 



202 



General Catalogue of Double Stars 



Without change. 



Discovered with the 6-inch. 
The magnitude in D.M. is 6.0 ; Harvard, 6.5. 



[^ (\)...!^{Mon. A^o/. XXXIII, 351)... /3'.../3 (3114)... i3 {Pub. 
L. O. II)... J (i)...()S {PoulAowa Obsns. x) . . . HS 



P 832. S.D. (11=) 5230 







R.A. 20^ 





" 5' I 












Dec). — 


10 


°59't 








1881.65 


ioi!8 


// 
1-34 




8.6. . 


. 8.9 


y 


y8 


1886.74 


lOI.I 






9 •• 


■ 9 


in 


LM 


1886.87 


104.0 


1.36 








211 


UL 


1887.79 


103-3 


1.49 




8.6.. 


■ 9-5 


V 


Com 


1888.51 


100.2 


1-34 




8.7.. 


. 9.2 


in 


Lv 


1898.68 


104.2 


1.80 




8.7.. 


■ 9-7 


yi 


Cg 



Discovered with the 15^ -inch at the Washburn 
Observatory. The measures show no change. 

[iS (xil). . ./3^ . .LM. . .Updegraff and Lamb {Pub. Washburn 
Obsy. v). . . Lv'. . .Comstock {Pub. Washburn Obsy. vi). . . 
Cogshall ( )...] 



P 428. U.M. (12") 4226 

R.A. aoh I'" 5= \ 
Decl. + 12° 36' \ 



A and C (= j3 429) 



1876.49 


343-7 


0.56 


7.2. . 


. 8.5 


3« 


A 


1878.58 


353-2 


1.04 


7-5- ■ 


- 9-5 


\n 


02 


1885.52 


355-5 


0.60 






2« 


HS 


1892.57 


351-4 


0.61 


7-5- • 


. 8.8 


\n 


Lv 


1893.72 


350.2 


0.68 


7.8.. 


. 9.2 


yi 


W 


1897.73 


351-6 


0-73 






yi 


Dob 



Discovered with the 6-inch. Probably un- 
changed. 

[/3 (vil).../3 (2103). . .A (l).. .OS {Poulkowa Obsns. x) . . .HS 
( )...Lv (A./. 278) {Proc. Flaverford Coll. Obsy. 1892) 
. . . Wilson ( ) . . . Doberck {3466) . . . ] 



P 429 and P 440. Lalande 38520 



R.A. 20'' I™ 27" 
Decl. + 35° 27' 

A and B (= /S 440) 

6.47 7.0 . . . 12.0 \n /3 
6.63 7.0. . . 12.5 \n (3 
6.93 7.0. . . 12.0 in Ho 



1876.80 61.3 
1878.53 61. 1 
1892.80 60.6 



1876.73 


25.8 


7-75 


7.0. 


. I I.O 


2/1 


A 


1878.53 


25.1 


8-39 


. 


. 12.0 


m 


/3 



1892.80 26.3 



1876.73 106.8 
1892.80 106.3 



A and E (= /3 429) 



28.15 
27.84 



... I 1.5 2« 

... 1 1.0 in 



Ho 



A 
Ho 



A and D (=H' IIL 113 = Sh 314) 



1783-75 


296.0 


1 1.27 


. 




m 


H^ 


1823.58 


301.0 


10.79 




. . 12 


m 


Sh 


1876.73 


300.7 


II. II 


. 


• • 9-5 


2« 


J 


1892. So 


300.3 


11-34 


• 


. . 10. 


m 


Ho 






A and F 









m H' 

27/ Sh 

7.7 2JI A 

8.0 in Ho 



F and G 








/ 
.12 


. . 12 


m 


|8 


.25 


. . 12 


m 


Ho 



1783-75 32-8 29.45 

1823.58 28.2 36.52 

1876.73 28.2 35.98 

1892.80 28.4 35.97 



1876.80 113. o 10.12 
1892.80 104.5 



The near faint companions were discovered with 
the i8i-<-inch. A, D, and F make the wide triple, 
H' III, 113 (= Sh 314 = 2 2630 rej). These stars 
are probably unchanged. All the measures are 
given above. 

[/3 (vil, vili). . .|9 (2103) {Am. Jour. Sci. July 1877). . .^'. ..A 
(I)... Hough (3234)...] 



P 470. O. Arg. N. 20079 



R.A. 20^ 3" 41^ 
Decl. + 63° 25' 



1877.69 214.8 2.40 9.5...11.0 2;/ A 

1892.63 215.7 2.48 8.3... 10. 5 yi W 

Discovered with the 6-inch. In the field 16^/ 
and 4' n of 2, 2642. 

[(3 (ix)...j3 {Mon. Not. xxxvill, ^?,) . . . A (l)... Wilson 
( )■•-] 



Discovered from i8ji to i8gg by S. W. Burnham 



20' 



P 833- Lalande 38625 



A and B (= S 738) 







R.A. 20^ 


5" 


' 11^ 


\ 










Decl. — 


6= 


30' 


\ 










B and 


C 













II 












1881.74 


63-7 


2.30 




8.8. 


..II. 7 


211 


/3 


1884.82 


58-4 


2.10 




8.5. 


. . 11.5 


i/i 


Ho 


1886.86 


76.0 


2.52 








III 


UL 


1888.08 


50.2 


2-45 




8.5- 


. .12.1 


i" 


Com 


1898.53 


59-9 


2.18 




8.9. 


• .12.5 


3« 


D 


1898.62 


57-7 


2.41 




8.3- 


..II. 6 


V 


A 


1898.73 


61. 1 


2.13 






..12.6 


A» 


Bd 






A and B 








1881.74 




63-5 


IT 8^58 




8.4. 


.. 


211 


/3 


1886.86 


63.0 


119.65 








3« 


UL 


1898.60 


63.1 


119.74 




8.0. 


.. 8.3 


3;; 


A 


1898.72 


63.1 


120.66 




8.0. 


.. 8.5 


3« 


Bd 



Discovered with the 15^-inch at the Washburn 
Observatory Probably no change. Boothroyd 
measures a 12m star from A, 357^2 : 43^63 
(1898.72) 3«. 

[jS (xil)...j34... Hough (2978)... Updegraff and Lamb [Pub- 
Washburn Obsy. v.) . . . Comstock [Pub. Washburn Obsy. 
Vl). . .Doolittle [Pub. Flower Obsy. i). . . .\itken (3585). . . 
Boothroyd ( ) . . . J 



P 1205. Lalande 38649 







R.A. 20^ 5" 47 






Decl. — 8° 27 


1890.65 



50.0 


0^56 8.1 


1897.71 


46.6 


0.70 


1897.79 


48.2 


0-59 



9-4 3« )8 



111 



A 
Br 



Discovered with the 12-inch. In S.D. 7.0 m. 

:(xvil)...i3(3047)...j3 [Pub. L. O. ll)...Aitken [A.J. 429) 
. . . Brown ( ) . . . ] 



p 150. W^ XX. 176 

R..\. 2o'> 5"' 56s \ 
Decl. ^ir 17' \ 

B and C 



1840.82 


191. 6 


1-55 


8.0. . 


- 9-5 


\n 


02 


1875-45 


1S7.1 


1.66 


8.1. . 


. 10. 


A" 


J 


1893-51 


187.7 


1.85 


8.0. . 


. 9.8 


i'l 


I.v 



1898.75 IS7.2 



1.78 



9.6 4« D 



1824.69 


112. 3 


41.86 


8 .. . 


1840.82 


III. 7 


41.24 


7-5 • - - 


1875-76 


no. 3 


41-15 


7.0. .. 


1885.91 


no. 3 


41.40 




1898.74 


109.2 


41.26 


7.1. .. 



\n- 


S 


IH 


02 


3« 


J 


':>>' 


Eng 


2 71 


D 



The duplicity of the smaller member of the wide 
pair, S 738, was discovered with the 6 inch. It had 
been previously seen, however, and was given as 
02 541 in l\\t Foiilkowa Observalioiis, IX, published 
after /3 (m). All the measures of these stars are 
given above. There is no evidence of change. 

[/3 (m). . ./S [Mon. Not. xxxiv, 59). ..A (i). . .OS [Poulkowa 
Observations IX, X, p. 45). . . Lv [.4. J. 382). . .Engelhardt 
(2785) [Astron. Obsns. 11). . .Doolittle [Pub. Flower Obsy. 

n...] 

P 430. D.M. (35^) 4008 



1877.30 

1893-51 
1898.76 





R 


.\. 20'' 


6" 48= 


\ 








Decl. + 


35° 28' 


f 










A and B 













II 










18.7 




1. 10 


9-3- 


. . 10.2 


V> 


J 


21. I 




0.98 


8.9. 


. . 10. 


y 


Lv 


23-8 




0-97 


8.7. 


.. 9.7 


4« 


D 



AB and C (= H 1489) 



1828 


236-3 


i3-± 


9-10. . 


. 10 


Ml 


H 


1877.61 


51-3 


17.09 


9-3- - 


. 9.2 


211 


J 


1893-55 


52-5 


17-15 




- 9-3 


\n 


Lv 


1898.76 


51.6 


16.87 




. 9-8 


VI 


D 



The close pair was discovered with the 6-inch. 
It is probable there is an error of iSo" in the 
angle of the wide pair bv H, as the / star is ob- 
viously the brightest, and so in D.M., where the 
respective magnitudes are 9.3 and 9.5. 

[/3 (vil) . . .)3 (2103). . . J (I). . . Lv [A.J. 382). . .Doolittle [Pub. 
Flower Obsy. I ) . . . ] 

p 982. D.^r. (25 )4i46 

R.A. 20'' 6™ 51^ \ 
Decl. +26° \' \ 

O It 

1SS0.47 51-0 0-87 S.S...IO.O 211 /3 
1893.51 50.1 o.Si 9. 1... 10. 3 3// Lv 

Discovered with the 185^-inch. It is the sf star 
of a wide pair. There is a 6.2 m star 6.5 n. 
[/3(xiii)...^3...Lv{.^.y. 382)...] 



204 



General Catalogue of Double Stars 



P 762. Lacaille 8392 



R.A. 20'' 9" 19=* 
Decl. — 32° 59' 



1877-65 303-3 2.49 7-7--- 8-0 2« Cin 

1887.72 303.8 2.78 8 ... 8 4;z Pol 

1891.13 303.3 2.36 8.1. .. 8.3 3« ^ 

1891.74 301.6 2.21 7 ... 8 111 Sel 

1893.68 303.1 2.25 7J^... 7/'3 I''/ Sel 

1896.69 301.7 2.33 7.8... 8.2 5;/ See 
1897.62 303.8 2.49 7 ... 8 2// Sc 

Discovered with the 6-inch. Without change. 

\P (XI). . ./3=. . .i3 {3114). . ./3 {Pub. L. O.ll). . .Cin". . .Pollock 
{Pub. Sydney Obsy. 1891) {Mem. R. A. S. L)...Sellors 
(3158,3240). . .See(3496). . .Scott(;J/o«. AW. lix, 427). . .] 



P 660. B.A.C. 6963 



R.A. 20'' 9™ 40^ 
Decl. +43° I' 



1878.65 318.I 9.44 7.0... 13. 5 \n /3 

1884.55 320.5 9.72 ... 2n H5 

1898.57 320.2 9.60 6. 5... 13.0 3;/ A 

Discovered with the iS^-inch. In Heis 6.7 m. 
[^(x).../3-...Aitken(358s)...HS( )...] 



P 294. 3 Capricoi'jii 



R.A. 20'' 9"" 44= 
Decl. — 12° 42' 

B and C 



1891.64 177.9 8.17 13.0... 13. 5 211 fi 

1898.56 180.4 7.49 13. 5... 14. 5 211' A 

A and B 

O II 

1891.64 36.2 27.14 5.7... 2n 13 

1898.56 36.0 26.54 6.5... 2/1 A 

These faint companions were noted with the 26- 
inch of the Naval Observatory. The large star has 
a proper motion of o '020 in the direction of 275?6 

(AUWERS). 

[/3 fv)...p {Mon. Not. xxxv, 31). . ./3 (31 14). . ./3 {Pub. L. 0. 
ii)...Aitken(358s)...] 



P 983- B.A.C 6966 

R.A. 20*' 10™ 11^ ] 
Decl. -j- 25° 14' \ 

a II 

1879.86 154.9 0.86 6. 1... 10. 2 3;/ /3 
1888.84 155-6 0.81 ... 5// Sp 

1899.51 152.6 1.04 5. 8... 10. 3 3« A 

Discovered with the 18}^ inch. In Heis and 
Argelander this star is 5 m ( Viilpeciila) ; Harvard 
photometry 4.8. 
i^ (xiii)...i33...Sp (in)...Aitken ( )...] 



P 59- W' XX. 213 



R.A. 20'' 10™ 36= 
Decl. + 4° 45' 



1875.66 118. 8 8.79 9.1...11.0 4;/ A 

1892.65 116. 5 8.72 8.8...11.0 yi VV 

1898.46 116. o 8.59 9.0... 9.7 3« D 

Discovered with the 6-inch. 

[(3(i). . ./3 (J/o«. iVb/. xxxill, 351). ..A (i).. .Wilson ( ). 
DoolitLle {Pub. Flower Obsy. l) . . .] 



P 295. a' Capricorni 







R.A. 20" 


II™ 0^ 


> 










Decl. — 


12° 53' 












A and B 













// 










i875-75 


181. 8 


40 dz 


4 - • 


.16 


lU 


Hn 


1891.83 


181. 9 


43-46 




-13-5 


2« 


^ 


1899.43 


.81.5 


43-46 




.13.0 


2/1 


/3 



A and C (= H 607) 



1830.56 


220.1 


44.14 


1879-49 


221. 1 


44-32 


1881.85 


221.2 


44-65 


1890.52 


220.8 


44-37 


1891.83 


221.5 


44-65 


1899.43 


22 I.I 


44.84 



. . . 9-10 


I /I 


Dawes 


... 9.0 


3« 


/3 




i« 


Big 


. .. 8.0 


2/1 


Gl 


. .. 8.9 


2/1 


/? 


... 9.5 


2/1 


/3 



The faint star was added with the Washington 
26-inch. All the measures of AC are given. 
AuwERS gives the proper motion of the large star, 
0^028 in the direction of 335?8. 

[/3 (v)...^ {Mo7t. Not. xxxv, 31)... iS (3ii4).../S {Pub. L. O. 
ll)...Holden {Wash. Obsns. 1875). . .Dawes (Met/i. R. 
A. S. Xix). . . Bigourdan {Paris Obsns. 1883). . .Glasenapp 
(I)...] 



Discovered from iSji to i8gg by S. W. Burnham 



205 





p 


442. vv^xx. 


41 


7 










R.A. 20" 


I a™ 4= 


s 












Decl. + 


37° 13' 












A and B 










1876.77 




104. 1 


i8!'47 


8.0. 




8-5 


m 


13 


1879.43 


103-7 


19.02 


8.0 




9-5 


m 


Cin 


1898.60 


102.2 


18.83 








m 


/3 






B and C 










1876.77 


48° 6 


17.69 






8-5 


III 


13 


1879.47 


48-5 


17.41 


7.0. 




8-5 


in 


Cin 


1898.76 


50.6 


[6.82 








\n 


(3 



1876.77 

1888.60 



1879.43 
1898.60 



1879.43 

1898.60 



1879-43 

1898.60 



A and a 



1876.77 


157-5 


4.40 


. . 


. 


m 


/3 


1879.47 


155-3 


4.01 


8.7. 


. 10.2 


2n 


Cin 


1898.60 


156.9 


3-88 






\n 


(3 



i57± 
156.7 



A and d 

II 

7± 
9.01 

A and c 



C and/ 



in P 
m /3 



1876.77 
1879.43 
1898.60 


332.5 
331-2 

333-2 


19-55 
18.88 
19.01 

B and d 


- -10.5 


m 
III 
in 


Cin 
13 


1898.76 




128. 1 


II 
3.68 

B and <? 


. .14 


in 


(3 


1876.77 

1879-43 
I89S.60 



164.3 

165-3 

163.7 


8.12 

5± 
6.77 


■ -13 


in 
in 
in 


f3 
Cin 

13 



109.4 

no. 3 



116. 1 

116. 2 



3056 
306.1 



11.26 
12.65 



C and e 



20.52 
20.83 



C and A 



i5± 
15-57 



. I i.o 



. 1 1.0 



13.0 



in Cin 

m ji 



in Cin 



T// Cin 
in /3 



A multiple star or group, discovered with the 
18^-inch, except the extremely faint star d, which 
was detected with the 40-inch in measuring the 
other stars. This is probably only a perspective 
group. 

[|3 (viu)...^{Am./ozcr. Sa. July 1877). . .CinS. . .] 



P 984. D.M. (25") 4184 



R.A. 20'' 


12m 21S ^ 








Decl. + 


26 


^ oM 








II 
0.86 




7.9. . 


. 8.2 


2n 


13 


0.63 




8.0. . 


. 8.0 


yi 
in 


Ho 
Lv 



1880.47 204.1 

1883.70 199.8 

1888.49 203.1 

1890.85 207.5 0.73 ... 7« Sp 

Discovered with the 18^-inch. 
[/3 (XII1J.../33... Hough (2978)...Lv'...Sp (in)...] 





p 


441' Lalande 39013 










R.A. 20'' 


12 


" 37^ ( 










D 


.cl. + 


28 


° 46' \ 






1876.80 




65-4 




5-87 




7.0. .. 


in 


13 


1877.68 


67.6 




5-74 




6.7. . . II. 5 


2« 


J 


1878.58 


67.5 




6.07 




7.0 . . . 10. 


m 


02 


1880.47 


65-7 




5-67 




6.5. . .11.5 


in 


/3 


1883.62 


65-5 




6.10 






2n 


H2 


1893-51 


65.6 




5-93 




6.3. ..II. 5 


3« 


Lv 


1896.80 


66.3 




5-70 






y 


.Morgan 



Discovered with the iSi/-inch. Without change. 



[|8 (vni).../3 {A»i./o//r. Sn.]u\y 1877) 
( )...OS {Poidkowa Obsns. x). 
Morgan {A.J. 439)..-] 



,../33...J (I). ..lis 
. Lv {A. J. 382) . . . 



661. Cygni 166 







R.A. 20'' 12™ 30^ \ 






Decl. -\- 40° 0' \ 


1878.52 




67.0 


11 
12.60 6.2 . . 


1884.56 


66.5 


12.81 


IS9I.50 


65.1 


12.99 5.8. . 



2n H 
2n H2 

y 13 



Discovered with tlie iS'/j-inch. The Harvard 
photometric magnitude is 3.3. B..V.C. OqSo. 

[/i IX)... ;8'...^ (S'M)...^ (/■'//.. Z. an)... IIS ( )...] 



206 



General Catalogue of Double Stars 



P 985. w= XX. 448 



R.A. 20'' 13"" 12= 
Decl. + 25° 16' 







A and B 








I8S0.66 


i48°7 


5-03 7-5. 


•I3-5 


V^ 


/3 


1898.83 


146.8 


4.72 6.8. 
C and D 


■13-5 


211 


A 


1893.59 


61^8 


/; 
8.89 


.12.7 


i" 


W 


1898.83 


63-7 


9.83 


.13.0 


2/1 


A 



A and C (= H 1499) 



1828 


358.4 i5± 8 ...13 


III 


W 


T880.66 


356.0 21.39 ...10.3 


?>n 


/8 


1893.58 


356.4 21.54 7.5. ..10.2 


yi 


W 


1898.83 


355.8 21.62 ...lO.O 


211 


A 


Discovered with the i8i4-inch. All 


the 


meas 


ures of ¥. 


1499 are given here. 






[^(xni).. 


.i33... Wilson ( )...Aitken (3585). 

P 662. S.D. (20°) 5904 

R.A. 20'' 14" 0^ ) 
Decl. — 19° 59' ', 


■ •] 




1878.52 


II 
3oozb i.7± 9 ... 10 




^ 


1898.74 


300.6 1. 61 9 ... II. 7 


VI 


Cg 



Discovered with the 183^-inch. This is the most 
northern of two small stars 2. '7 apart. A 7^ ra 



star 28^/ and 2 .'6 s. 
[^(x)... /?'... Cogshall( 



■ ] 



P 986. W= XX. 491 







R.A. 20'' 14'" 10=^ 












Decl. + 34° 44' 








1880.51 




242.1 


4.41 8.1 . . 


. II. 4 


5« 


(i 


1892.72 


240.6 


4.20 8.5.. 


.11.8 


yi 


w 



Discovered with the 18^-inch. 
[/3 (xili).../33... Wilson ( )...] 





pi 


206. Lalande39ii5 










R.A. 20'^ 14" 


'36^ I 
23' \ 




> 






Decl. + 36' 






1890.52 


363-0 


1.90 


7.8. . . 10.8 


3^' 


/8 


1897.74 


359-7 


1.80 


. . . 


I// 


L 


1897.83 


355-6 


2.25 




in 


A 


1897.99 


365-6 


2.14 


. . . 


\)i 


Br 



Discovered with t\x& 36-inch 

[/3 (xvii).../3 (3047).../3 {Pub. L. O. ll)...Aitken (A.J. 429) 
. . . Lewis (Moil. Not. lix, 400) . . .Brown ( ). . . ] 



P 431. W= XX. 530 



R.A. 20'' 15" 255 
Decl. + 35° 53' 



1877-33 


220.8 


0.56 


8.5-- 


. 8.8 


6« 


J 


1884.25 


42.4 


0.72 






3« 


HS 


1884.84 


53-1 


0.42 


8.0. . 


. 8.5 


in 


En 


1889.53 


38.2 


0.66 


8.6. . 


. 8.6 


4« 


iS 


1898.60 


38-0 


0.75 


8.4.. 


■ 8.5 


4« 


A 



Discovered with the 6-inch. Change uncertain. 

/3(vii).../3 (2103, 2957)... ;3(/'«/;. L. au).../d (l)...Engel- 
mann (2742). . . H2 ( ). . .Aitken (3585). . .J 





p 


763. K 


^ Sagittari 










R.A. 20'' 


15'" 43^^ 


( 










Decl. — 


42° 48' 


\ 






1887.38 




213-3 


0-93 


7 ■ 


. 8 


\n 


Pol 


1889.47 


21 1.2 


1-33 


6.0. 


. 8.9 


A,fl 


^ 


1891.04 


216.0 


0.88 


6 . 


- 9 


Ml 


Sel 


1894.71 


213-4 


0-73 


6 . 


. 8 


211 


Sel 


1897.78 


I95-I 


1.40 


7-0. 


. 8.9 


\n 


See 


1898.58 


212.9 


1. 00 


6.0. 


. 8.8 


3« 


A 



Discovered with the 6-inch at Mt. Hamilton in 
1879. The Cordoba magnitude is 5.6. Probably 
unchanged. See measures a 14m star 209?3 :29f3i 
(1897.78) i«. 

[/3 (xI).../3^../3 (2957)... j3 {Pub. L.O.\\)...V oWocV [Pub. 
Sydney Obsy. 1891) (yI/o?z. Ao/. XLVII, 473) [Mem R. A. 
S. L)...Ssllors (3154,3303)... Aitken (3585)- -.] 



P 1207. Lalande 39198 



R.A. 20'' 16'" 25= I 








Decl. -f 43° 28' \ 








5-76 7-7-- 


-13-5 


3« 


/? 


5-83 7-3-- 


•-3-5 


y 


A 



1890.58 217.8 
1898.66 215.7 



Discovered with the 36-inch. One of the VVolf- 
Rayet stars in Cygniis. 

[i3xvii).../3 (3047)... /3 [Pub. L. O. 11)... Aitken (3585)...] 



Discovered from i8ji to i8qq by S. W. Burnham 



207 



P 1259. w= XX. 563 

R.A. 20*" ib"^ 27'' ] 
Decl. + 30° 13' f 

1891.65 171. 9 0.47 8.3. . . 8.7 3« /? 

1895.01 172.9 0.37 ... 5« Sp 

1898.60 167.5 0-63 8.6... 8.7 yi A 

Discovered with the 36-inch. It is 11^ p a 7 m 
star. 

[;3 (xviii). . .(3 (3113). . .(3 (Pub.L. O.ii). . .Sp (ill). . .Aitken 
(358S)...] 



P 1260. D.M. (55°) 2368 

R.A. 20'' i6"" 33= \ 
Decl. + 55° 19' \ 

o // 

1891.57 169.4 0.47 8. 2. ..10. 8 yi ;8 

Discovered with the 36-inch. This is 18' n of 
of 2 2761. 

[^(xviii)...^(3ii3).../3(/'«3. Z. O. 11)...] 



P 663. Lalande 39260 



R.A. 20"^ 17" i(f 
Decl. + 53° 13' 



A and B 

6.58 6. 3... 15. 2 2« /3 
7.80 * 6.0 . . . 15.5 \>i A 



A an 


d C 








8.3± 




..12.5 


I// 


/5 


7.80 




, . 


2n 


H2 


7.67 




• • 12.5 


yi 


/3 


7.60 


. 


..13.0 


\n 


A 



1891.54 313.6 

1898.67 311. 4 



1877.57 79-4 

1885.52 77.5 

1891.53 75.2 
1898.67 76.7 



The faint star, C, was discovered with the 183^- 
inch, and in measuring that with the 36-inch a still 
nearer companion was detected. This is a difficult 
object with a large aperture. Rogers (^A. G. C) 
gives the proper motion, 0^092 in the direction of 

o 

270 . 

liS (X)... /?'... ^ (3114)...^ (/W-. /.. O. II)... Aitken (3585) 
...112;( )...] 



P 665. Y Cygui 

R.A. 20'' 17'" 555 } 
Decl. + 39° 52' f 



1878.52 305.1 
1891-53 302.0 
1898.55 300.2 



1878.19 196.5 140.44 

1891.53 196.4 141-13 

1898.54 196.2 141.32 



B and C 








1. 41 10. 0. . 


. I I.O 


2« 


fi 


1.78 10.4. 


. 10.4 


3« 


(i 


1.86 10. 0. 


. TO.O 


3« 


A 


A and BC 









2-3- 



3« /3 
3« fi 
in A 



The distant double companion was discovered 
with the 1 83^ -inch. There ar.e several small stars 
nearer A than this. Auwers gives the proper 
motion of y Cygj/i o".oi() in the direction of i76?5. 

Mitchell at Cincinnati has a companion which is 
ascribed to y Cygni (Cin^) 233?3 : 33:80 (1847.54). 
He gave the colors, A red, B greenish. There is no 
doubt that the observation really belongs to /3 
Cygni, there being an error of 180° in the position 
angle. With this correction the measure and de- 
scription apply perfectly. 

[^(x). . .|3'. . ./3(3II4). . ./3 {Pub.L. an). . .Aitken (3585). . .] 
P 664. Aqiiilae 264 



1878.62 285.1 

1885.13 289.0 

1893.66 290.0 

1896.71 287.0 

1898.68 2S8.2 



R.A. 20" i8"^ 
Decl. -f 5° 

/; 
9.66 

8.78 

8.90 

8.76 

8.90 



36^ \ 

r S 
7.0. . 

7.2. . 

7-5- 
7.0. 



12-5 



- ^0-^ 

.12.2 
.12.2 



I /I 
4/1 

3« 
1/1 



HS 

w 

Lv 
A 



Discovered with the iS^<-inch. Probably with- 
out change. Lalande 39236. 

[(3 (x) ...i3'...Lv (.4. /. 407) ...Wilson ( )... Aitken 
(358S).--nS( )--■] 



P 666. D.M. (53^) 2392 

R.A. 20'' 19'" 95 ) 
Decl. +53= IS' \ 



1877. 58 121.4 
1877.86 124.7 
1892.82 121.6 

Discovered with the iSV^-inch. 

[/3 (x)...^-..,J (1).. .Hough (3234)-. -1 



i-7± 


8.5. 


. 1 1.0 


\/i 


fi 


2.00 


9.0. . 


. 12.0 


\ti 


J 


1.58 


9.0. 


• 10.5 


\ti 


Ho 



2o8 



General Catalogtie of Double Stars 



P 443. Lalande 39293 



R.A. 2oi^ 


19 


^> 12= 








Decl. + 


28 


^ 37' i 








A and 


B 








// 
12.98 




7-5- 


.11.5 


111 


P 


^Z-l^ 








\)i 


02 


13.16 




7-5- - 


. 12.0 


2n 


W 


13.64 




7-5- 


.11.5 


2)1 


^ 


A and C 








// 

35-22 






. 12.0 


111 


/8 


35-18 






■JO. 5 


211 


W 


35-38 








211 


iS 



1878.47 134.3 

1878.58 132.9 

1892.81 133.2 

1898.51 136.2 



1878.47 87.4 

1892.81 88.8 
1898.51 89.2 

Discovered with the iS^/^ inch. The 40-inch 
shows a faint star in the direction of B, which is 
nearer than C. 

[i3 (vni)...i3 {Am. Jour. Sci. July 1877)... OS [Poidkowa 
(9fo«.f. x). . .Wilson ( )...] 



P II34. D.M. (63°) 1618 

R.A. 20*^ 19™ 29^ } 
Decl. + 63° 36' S 

1889.48 8o!8 4*32 5. 8... 12. 7 3« (i 

Discovered with the 36-inch. A naked-eye star 
in Cephcus, but not given as such by Heis and 
Argelander. The Harvard photometric magni- 
tude is 5.8. 
[iS (x VI) . . . iS (2956) ...p {Pub. Z. C>. II) . . . ] 



p 432, W= XX. 







R.A. 2d^ 


20 


m J3S , 

° 22' \ 












Decl. 4- 


35 








1877.23 




195.2 


1.24 




8.6. . 


9-9 


5« 


A 


1878.65 


199.6 


1-34 




8.5-- 


9-5 


111 


OS 


1892.72 


197.8 


1-44 




8.3-- 


9-7 


yi 


w 


1897.79 


192.7 


1-35 








\n 


Br 


1898.60 


196. 1 


1-44 




8.4.. 


9-5 


A>> 


A 



Discovered with the 6-inch, 
change. 

[)3 {vir).../3(2i03).../l (I)... Wilson ( 
ObsHS. x) . . . Wilson ( 
( ).-•] 



Without relative 

). . .OS {Poulkoum 
. . Aitken (3585) . . . Brown 



P 60. IT Capricomi 







R.A. 20'' 


20™ 27' 


( 










Decl. — 


18° 36' 










A and B 








1846.70 




I45-I 


// 
2.85 






Sn 


Mh 


1871.80 


144.9 


3-15 


6.0 


■ -10.3 


V 


Kn 


1874.96 


145.2 


3-27 


51 


.. 8.7 


411 


A 


1876.64 


146.2 


3-47 


5-0 


•■ 9-7 


yi 


Cin 


1877-64 


144.2 


3.16 


4-7 


.. 8.7 


2n 


Cin 


1880.72 


145-4 


3-31 






211 


Pt 


1887.79 


145.0 


3-34 


5-0 


. . . 9.0 


2)1 


T 


1888.60 


146.2 


3-49 


5-0 


. . 8.2 


611 


Lv 


1888.71 


146.9 


3-53 


5-0 


.. 8.5 


2)1 


T 


1889.69 


I45-I 


3-43 


5 


- - 9 


2)1 


HI 


1897.74 


146.5 


3-45 


4-9 


.. 7-8 


2)1 


See 


I89S.5I 


144.2 


3-15 




.. 7-8 


in 


D 


1898.56 


144.2 


3-40 


5-0 


• - 9-3 


2)1 


A 



A and C (= /3 296) 



1874 


45± 


3o± 


•••13-5 




P 


1898.56 


43-5 


38.12 


. . . 14.0 


211 


A 



The close pair was discovered with the 6-inch in 
1 87 1, but it had b6en seen long prior by Mitchell 
at Cincinnati, although not published until 1876. 
The principal star has a proper motion of ofoi7 in 
the direction of 313^2 (Auwers). If the smaller 
star was fixed, the distance should increase about 
o!'8 in the time covered by the measures. The 
measures appear to indicate some change in this 
respect. The distant star was added with the Wash- 
ington 26-inch. 

[13 (i, v)...(3 {A/on. Not. xxxiil, 351; xxxv, 31). . .Mitchell 
(Cin')...J {\)...A (2081).. .Knott (y^/fOT./e. ^. 5. XLlll) 
. . .Cin3. . .Cui't. . . I^ritchett {Pub. Morrison Obsy. l). . . 
Tarrant (2899,2991). . .Lv'. . .Hall (il)...See (3496)... 
Doolittle {Pub. Floiver Obsy. l). . .Aitken (3585). . .] 



P 61. p Capricomi 



R.A. 20'' 22"" I 



Decl 



18° 13' 



A and C 



1891.49 151. 4 55.21 
1898.63 151. 3 55.16 
1899.44 151. 1 55.32 



• -13-2 

• • 12.3 

• -13-0 



3« i8 

yi D 

Ml ^ 



Discovered from i8yi to i8gg by S. W. Burnham 



209 



A and B (= H ' II. 51 = Sh 323) 



1823.78 


177-3 


4.02 


5 • 


. 10 


271 


Sh 


1869.01 


1 74- 1 


2-83 


5-0- 


• 7-1 


A,n 


J 


1872.28 


172.4 


2.92 






2)1 


Sp 


1898.63 


172.2 


2.58 


. . 


• 7-5 


yi 


D 



A and D (=H' VI. 29 = Sh 322) 

o // 

1823.78 150.7 238.02 5 ... 7 2« Sh 
1899.44 150. 1 246.96 •■-7 m (i 

The faint star, C, was noted with the 6-inch. 
There are many measures of AB, which, taken 
together, do not show any sensible change. The 
principal star has a proper motion of 0^040 in the 
direction of 26o?o (Auwers). It would appear 
from the measures that A and B are moving 
together. The very distant star, D, is Lalande 
39364. The Cordoba meridian observations give 
for AD, i49?9 : 245:8. 

[^ (i)...j3 {Mon. Not. XXXIII, 351)... /3 (3114).../? (Pid. L. 
O. II) Doolittle [Pub. Flowa- Ohsy. l) . . . lierschel {Cape 
0/wj.).. .Mitchell (Cin^) .. .Jacob (Mem. P. A. S. xvu, 
xvill). . .Secchi {Catalogo di 1321 Slelle Doppie) [Mem. 
Coll. Rotnano, 1855). . .Secchi (1017). . .Knott (Mem. R. 
A. S. XLIll) . . .A (I) . . . Sp (11) . . . Pritchett {Pub. Morrison 
Obsy. I). . .Cin3. . .,Cin«. ..Tarrant ( 2899 ). . .Lv'. . .LM 
. . . Scott {Brit. Ast. Asso. V, 75 ; VI, 250) ... J 

p 62. Lalande 39445 



R.A. 20'' 23"" 6= ) 
Decl. + 29° 44' ) 



1875-52 135-5 
1892.59 137.6 
1898.54 136.2 



Discovered with the 6-inch. 



1.20 


8-5.. 


- 9-4 


4// 


J 


I. 21 


8.2. . 


. 9-8 


2n 


w 


I. 16 


8.1. . 


. 9.2 


yi 


D 



[/3(i)...j3 {Mon. Not.xxww, 351)... zl (i). . .Wilson ( ). 
Doolittle [Pub. Flower Obsy. 1). . .] 



P 433. D.M. (55°)2399 



1892.74 208.6 
1898.47 206.0 



1892.74 244.8 
1898.47 244.0 



R.A. 20'' 23'" 36^ \ 




Decl. +55° 55' i 




A and B 




7-38 9-0- 


.11.2 


7.81 8.8. . 


- 9-9 


A and C 




27.09 


. 10. 


27-57 


. 9.2 



w 

D 



I) 



Discovered with the 6-inch. 



[/3 (vii).. .iS {2103)... Wilson 
Obsy. I)...] 



). . .Doolittle {Pub. Flower 



P 363. Vtilpeciilae 93 







R.A. 20'' 


24-" 28^ ) 










Decl. + 


20 


'l2-( 






878.71 


62^8 


21.77 




7.0 . . . I 1.0 


I« 


/? 


879-54 


61.8 


20. ±: 




7.0. . . 12.0 


\n 


Cin 


892.68 


65-4 


19.72 




7.2 .. . 12.2 


2« 


W 



Discovered with the 6-inch. Wilson measures 
a'third star, i97?5 : 44:14 (1892.68) 2«. The prin- 
cipal star is W^ xx, 807. 

[i3(vi)...i3 (2062)... /i^..Cin5... Wilson ( )...] 



P 63. I Delpliini 







R.A. 20h 


24" 33' 












Decl. + 


10° 30' \ 












A and B 








1874.70 




350-0 


// 
0.64 






i« 


N 


1874.92 


343-3 


0.84 


6.0. . 


. 8.0 


A" 


J 


1878.46 


345-0 




6.0.. 


. 8.0 


\n 


/3 


1878.60 


338.9 


0-85 


6.5-- 


- 8.5 


m 


02 


1879.70 


344-9 


0.67 






\n 


/3 


1880.19 


345-4 


0.88 


6.4.. 


■ 7-9 


3« 


/3 


1884-97 


346.6 


0.91 






y 


H2 


1887.60 


344-8 


0.89 


6.0. . 


. 8.0 


V 


T 


1887.84 


347-4 


0.79 


6 . . 


. 10 


211 


HI 


1888.59 


347-0 


0.89 


5-9- - 


. 8.0 


y> 


Lv 


1888.62 


347-9 


0.67 






s« 


Sp 


1888.69 


346-4 


0.8S 


6.0. . 


. 8.0 


2« 


T 


1891.69 


353-0 


1.06 






2// 


Maw 


1897.82 


346-5 


I.I I 






2« 


Br 


1898.48 


343-6 


0.93 


7-3- • 


- 8.3 


211 


D 


1898.64 


346-7 


0.88 


6.1. . 


. 8.5 


2H 


/3 


1898.70 


344-0 


1. 14 


6.0. . 


. 8.9 


4" 


A 


1898.85 


353-9 


0-93 






\v 


Maw 



A and C (= /3 297) 



1874 36oi!z 

1885.60 349.0 

189S.48 352.7 

1S98.55 346.6 

1898.79 346.6 



i5± 


• • '3-5 




/8 


16.71 




Ml 


IIS 


15-81 


- - 13-5 


2U 


D 


16.79 


..14.2 


2n 


li 


'7-77 


--I3-5 


3" 


A 



2IO 



General Catalogue of Double Stars 



The close pair was discovered with the 6-inch, 
and the distant star added with the Washington 
26-inch. So far there appears to be no sensible 
change in AB. The proper motion of the prin- 
cipal star is very small — oroii4 in the direction 
of 345?o. If this is substantially correct as to 
amount, the components are moving together, as 
otherwise the distance would be increased nearly 
o!'3 in the time covered by the measures. 

{p (l). . .^ {Mon. A^ot. XXXlll). . ./3'. . ./33. . .Newcomb {Wash. 
Obsns. 1874).../] (l)...^ (2081)... OS (Poulkowa Oisns. 
x). ..Tarrant (2899,2991). . .Lv^ . .Hall (ii)...Sp (in) 
. . . Maw {Mem. J?. A. S. L, ltii) . . .Doolittle {Pub. Flower 
Obsy. l) . . . Aitken (3585) . . . Brown ( ) . . . ] 



P 987' Lalande 39506 



R.A. 20'^ 24" 50' 
Dec). +19' I ' 







A and B 








1880.15 




127.7 


2.32 7.2. 


-II-5 


5'^ 


H 


1893-59 


130-7 


2.40 7.5. 


.11.7 


Z» 


W 



A and C (= S 752) 



1824.98 288.6 105.38 

1879.99 288.5 106.17 



1% 3« S 
7.2 2;/ /3 



The close companion to A was discovered with 
the 1 8 J^ -inch. The foregoing are all the measures 
of AC. The Berlin A. G. Catalogue gives the 
proper motion of the principal star o''o4i in the 
direction of 290?!. 

[i3(xin).../33... Wilson ( ). ..] 



P II35- Lalande 39561 



R.A. 20*^ 


25 


-10= 








Decl. -f 45 


° 20' 








1-53 




8.3.. 


.10.7 


4;/ 


P 


1.40 




8.1. . 


. II. 4 


3« 


A 


1.56 




. . 




in 


A 



1889.53 338.3 
1895.78 336.8 
1897-78 340.4 



Discovered with the 12-inch. 

p (XVI)... iS (2956)...^ (/'«/;. L. O. II)... Aitken {A.J. 429) 
{As/. Soc. Pac. vn, 305). . . ] 





F 


\ 668. 


B.A.C. 7080 










R.A. 20^ 


25" 49' \ 










Decl. — 


10° 16' \ 






1878.63 



29.0 


4.64 


6.2 ... 1 1.7 


l" 


/8 


1881.67 


26.1 


4.99 


6.5. . . 12.4 


4« 


^ 


1890.57 


25.0 


4.80 


6.8. . .11.2 


3« 


/? 


1891.49 


27.8 


4.64 


6.0.. .11.5 


yi 


i8 


1898.56 


27-3 


4-75 


6.5 ... I 2.0 


2n 


i8 


1898.57 


25.6 


4.96 


6.9 . . .12.2 


yi 


A 


1898.70 


26.3 


4.66 


6.7. ..II. 3 


4« 


D 



Discovered with the 18^ -inch. A very interest- 
ing physical svstem from the considerable proper 
motion of the components. This motion of the 
principal star is given : 



Bonn - 

Auwers 
Porter 



0.309 in 67.7 
0.309 in 72.1 
0.305 in 66.2 



There has been very little, if any, change in the 
position of the small star in twenty years. This is 
a naked-eye star in Capricornits. The Harvard 
photometric magnitude is 5.6. 

[/3 (x) .../3V..(34.../3 (3048,3114)... /3 {Pub. L. O. 11)... 
Aitken (3585). . .-Doolitttle {Pub. Flower Obsy. l) . . . ] 



P669. 



Cyg?ii 



R.A. 20"^ 26" 20^ ^ 
Decl. +48° 33' S 



1878.65 342.5 
1898.51 342.2 



17.26 
18. II 



A and B 

5-5- --13-5 



y> 



A and C 



1878.65 
1893.65 
1898.49 



86.3 
86.6 
86.5 



56.28 
55-86 
56.02 



1898.51 86.3 56.39 



. . 10. o m f3 

. . 10.9 4« ^^' 

. . 8.7 2« D 

3n (3 



These distant companions were noted with the 
18^-inch. AuwERS gives the proper motion 
o!'o42 in the direction of i6o?8. This would 
increase the distance of B in twenty years about 
o'S, and this change is shown by the measures. 

[/3 (x). ../?'.. .Wilson ( ).. .Doolittle {Pub. Flower Obsy. 
I)...] 



Discovered from iSji to i8gg by S. W. Burnham 



21 1 



P 670. D.M. (I3")4435 







R.A. 20'' : 


27" 17= 


( 








' 




Dec). + 


1,3° 32' 








1877-75 




58.3 


// 
0.76 


8.5 




8.8 


2>l 


)8 


1877.83 


53-5 


0.63 


8.5- 




9.0 


\n 


J 


1889.87 


50.7 


o.6± 








5" 


Sp 


1893-51 


47-3 


0-53 


8.5. 




8.9 


y 


Lv 


1896.12 


44-8 


0.62 


8.2. 




9-2 


2« 


W 


1897.84 


48.4 


0.45 








2n 


Br 


1898.75 


47.1 


0-57 


8.7 




9.2 


3'^ 


A 



Discovered with the i8i^-inch. The measures 
suggest angular motion. The southern star of a 
wide pair. 

[/3 (x).../3'. ..Zl (i)...Sp (ni)...Lv {A.J. 382). . .Aitken 
(3585). ..Wilson ( )... Brown ( ). . .] 



P 434. W= XX. 941 



R.A. 20'' 28"" 5= 
Decl. + 41° 28' 

II 
1.37 9.1. 

1.56 9.0. 



1877.29 lOI.I 
1892.70 100.8 



9.9 T,n A 
9.8 2// W 



Discovered with the 6-inch. 
[(3(vn).../3(2i03)...i (I)... Wilson ( )...] 

P 1 136. Lalandc 39698 

R.A. 20" 28™ 6' I 
Decl. + 49° 8' I) 

o // 

1889.54 206.6 0.35 8.1... 9.7 yi /? 

Discovered with the 12-inch. Recent measures 
are wanting. 

f/3(xvi)...^(2q56).../3 {Pub. L. C. n),..] 



P 1208. Lalande 39656 

R.A. 20'^ 28"" 38=^ ^ 
Uecl. + 6" 28' \ 

O II 

1890-55 335-5 2.94 7. 4... 12. 2 3« /? 

1897.80 333.0 3.12 ... i« Br 

1899.45 330.8 3.02 7. 2... 13.0 2// A 

Discovered with the 36-inch. 

[i3 (xvil).../3 (3047).. .|8 {Pu/>. /.. O. 11). ..Hrown ( )... 
Aitken ( ). ..] 



P 671. O. Arg. X. 20741 







R.A. 20'' 29 


■"33^ \ 












Decl. + 62 


' 3'^ 








1877-57 


334-8 


o-5=t 


8.0. . 


10. 


m 


ft 


1877-78 


335-9 


0.47 


8.0. . 


8.5 


in 


J 


1879.49 


333-9 


0.42 


7-5- ■ 


9.0 


\>i 


/3 


1881.57 


333-2 


0.49 


8.0. . 


"-5 


in 


/3 


1885.53 


337-9 


o.6± 






171 


H2 


1898.65 


336.0 


0.49 


7.9.. 


8.7 


2)1 


D 



Discovered with the 185^ -inch. No certain 
change. 

[j3 (.x). . ./3'. . .^3. . .(34. . .A (i). . .Doolittle {Pub. Flower Obsy. 
l)...HS( )...] 



P 151. P Delphini 









R.A. 20'' 31 


■"55= 


\ 










Decl. + 14 


° II ' 


\ 










A and B 








1873.60 


355± 


// 
o.7± 








ft 


1874.66 


15-5 


0.65 


4-1 


■ ■ 5-4 


-:,» 


J 


.70 


13 


6 


0.49 






3« 


New 


•73 


8 





0.69 


3-5 


-- • 4-5 


\n 


02 


1875.61 


14 


7 


0.42 


4-0 


. .. 6.0 


4;/ 


Sp 


•65 


20 


I 


0-54 


4-3 


.. 6.7 


4« 


J 


1876.65 


25 


8 


0.48 


4-1 


-- 6.3 


A>i 


J 


-85 


54 


4 


obi. 






i?i 


02 


1877.27 


17 


7 


0-35 






2« 


Sp 


•71 


29 


7 


0.51 


4.6 


- . 5-0 


S" 


J 


-79 


40 


8 


0.32 






2n 


ft 


1878.65 


53 


7 


0.24 






4« 


ft 


-75 


59 


2 


. . . 






111 


J 


1880.68 


133 


6 


0.26 






y 


ft 


■75 


214 


5 


0.2ih 






2)1 


HI 


1881.54 


149 


2 


0.26 






5« 


ft 


.88 


154 


7 


. . . 






Ml 


Big 


1882.60 


167 


5 


0.26 






V 


ft^ 


18S3.25 


183 


9 


0.19 






v 


En 


-55 


182 


5 


0.23 






3" 


ft 


1884.69 


195 


9 


0.32 






3" 


HI 


-71 


197 


7 


0.32 






4" 


En 


-77 


199 


2 


0.29 






5" 


ft 


18S5.61 


222 


9 


o.4dr 






Ml 


H2 


•75 






Single 






111 


HI 


.91 


216 


6 


0.38 






Sii 


En 


1886.77 


257 


8 


. . . 






\ii 


H2 


.88 


23S 


I 


o.25±: 






1" 


Sp 



212 



General Catalogtie of Double Stars 



1886.91 


219^5 


0.39 


A'l 


En 


1887.45 


287.3 


0.2± 


^n 


Sp 


•55 


278.5 


0.36 


5« 


T 


.66 


272.0 


0.41 


5« 


HS 


•75 


308.1 


o.3± 


\n 


Ho 


•85 


287.8 


0.2± 


%n 


Sp 


18S8.65 


310. 1 


0.29 


rn 


13 


.81 


300.9 


0.35 


3« 


H2 


•83 


3ii^5 


0.25zb 


i-u 


Sp 


1889.50 


314-2 


0.31 


S" 


/8 


•78 


318.5 


0.43 


6)1 


HS 


.86 


319.2 


o-37± 


1 1 « 


Sp 


1890.49 


324.2 


0-45 


A" 


13 


.89 


326.5 


0.43 


12/1 


Sp 


1891.45 


33i^6 


0.38 


A" 


iS 


■52 


338.4 


0-79 


111 


See 


• 64 


330-1 


0.39 


yi 


HI 


.76 


334-0 


0.47 


5" 


H2 


•84 


338.2 




m 


Big 


.88 


333-5 


0.46 


gn 


Sp 


1892.39 


338-7 


0.50 


An 


/3 


.87 


337.6 


0-49 


211 


Bar 


.92 


340-7 


0.54 


5« 


Sp 


1893-52 


339-2 


0.58 4.0 . . 


. 7.0 2« 


Lv 


•53 


338-8 


0-73 5-5- ■ 


. 8.0 211 


^^■ 


•63 


335-3 


0.57 


3" 


Ho 


•70 


342.2 


0.56 


5^' 


Bar 


•79 


346.S 


0.51 


3" 


Com 


.87 


344.3 


0.51 


lyi 


Sp 


•95 


345^8 


.... 


\n 


Big 


1894-51 


346.3 


0.56 


8« 


Bar 


•72 


345^9 


o.6± 


\n 


H2 


•83 


347^2 


0.50 


i3« 


Sp 


1895-31 


351^8 


0.49 


\ii 


See 


.48 


349-7 


0.68 


6// 


Bar 


.61 


348.1 


0.54 


\n 


Ho 


.66 


350-8 


0.58 


in 


Com 


.69 


350-3 


0.66 4.5. 


. 6.0 211 


Dv 


•77 


351-9 


0.67 


V 


Sp 


.81 


351-9 


0.65 


ifi 


Lew 


1896.63 


361.8 


0.45 


m 


Pt 


.66 


354-0 


0.59 


V 


Com 


.69 


356^6 


0.51 


in 


Morgan 


.76 


357-0 


0.67 


in 


See 


.84 


352-6 


0.49 


3« 


A 


.86 


355-1 


0.60 


yi 


Hu 


•87 


355-9 


0.65 


■jn 


Sp 


1897.52 


357-6 


0.84 


2n 


Leh- 
man 


•55 


356-7 


0.55 


4n 


Bar 


f — 

-3D 


356-3 


0.68 


3« 


A 



T897.61 


357-3 


0.71 






4« 


Hu 


•65 


362.5 


0-55 






in 


Maw 


.66 


356.1 


0.79 






in 


'd 


.69 


357-7 


0.62 






4« 


Dob 


.76 


354-0 


0-65 






m 


See 


.86 


356.9 


0.62 






4« 


Sp 


.90 


359^5 


0.63 






in 


Br 


1898.50 


361.0 


0.64 






yi 


A 


-58 


359^0 


0.67 






4« 


^ 


.61 


360.3 


0.62 






7« 


Hu 


.70 


359-5 


0.79 






4« 


D 


-72 


363-0 


0.55 






2« 


Br 


•75 


364-7 


0.66 






\n 


Lew 


.90 


360.4 


0-57 






5« 


Sp 




AB 


and C (: 


= Herschel) 






1828 


107.7 


II 

i8± 


. . .14 


\n 


H = 


1878.05 


116. 2 


27.66 






3« 


H 


1881.19 


115. 6 


27-57 




12.7 


A,n 


13 


1883.54 


116. 2 


27^43 






\n 


13 


1888.82 


115-7 


26.77 






2)1 


/8 


1890.46 


117. 3 


26.89 






in 


P 


1895.81 


117. 8 


26.14 






m 


Lew 


1898.49 


1 17.6 


25.87 






y 


13 


1898.59 


1T7.1 


.25-92 






2n 


Bar 




AB and D (= H' 


IV. 35 = 2704) 




1829.40 


343'8 


32.48 


3.0. . . II. 


yi 


S 


1851.84 


339-2 


33-74 


... II. 


2« 


02 


1864.94 


336.6 


34^64 


-- -10.3 


in 


A 


1888.82 


333-2 


36^35 




in 


13 


1898.49 


331-4 


37-18 




yi 


13 


1898.71 


332-3 


36.98 






in 


Bar 



The close pair, AB, was discovered with the 
6-inch in August 1873. ^^ ^^'^s evident at this 
time that it would prove to be a binar}' system, as 
otherwise it could not have escaped detection by 
prior observers. It has now (1899) completed 
substantiall}' one revolution since it was discovered. 
The following orbits have been computed, the first 
column giving the date of the last measures used : 



T883 
1884 



Doubiago 26.07 vears A. JV. 2602 



Gore 



1887 Celoria 

1890 Burnham 

1892 Glasenap 

1895 See 



30.91 



16.95 
28.5 
22-97 
27.66 



1899 Burnham 26.70 



Froc. R. I. Ac. IV, 

No. 5 
A. N. 2824 
Sid. Mess. X, 215 
A. N. 3177 
Evolution Biliary 

Systems 
(This volume) 



Discovered from iSyi to i8gg by S. W. Burnham 



2 I 



The principal positions down to 1899, and the 
last orbit given above, are shown on the accompa- 
nying diagram. 

7^0° 




W^ 



Scale 



fi Delphini. /3 151. 

The elements of the several orbits are as follows 





P 


r 


e 
0.36 


a 


a 


I 


\ 


1883 


Doubiago 


26.07 


1882.2 


0.5s 


163.6 


54-9 


3S4-6 


1884 


Gore 


30.91 


1882.2 


0-34 


0.S2 


2.7 


S9.3 


327.« 


1887 


Celoria 


16.95 


1885.8 


0.09 


0.46 


10.9 


61.6 


220.9 


1892 


Glasenapp 


22.97 


1882.4 


0.26 


0.50 


174.2 


64.1 


343-9 


i«9S 


See 


27.66 


1883.0 


0.37 


0.67 


3-9 


61.^ 


164.9 


1899 


Burnham 


26.70 


1 883. 1 


0.33 


0.48 


1.8 


SS-9 


171-7 



The ne.xt companion, C, was discovered by 
Herschel, and is first mentioned in his Fourth 



Catalogue [Mem. R. A. S. ivj. This is much fainter 
than the more distant companion discovered by 
the first Her-SCHel, and observed by Struve as 2 
2704, and does not appear to have been noticed by 
either of these observers. On account of its 
faintness it has been missed or neglected by all 
the early observers who measured D. My own 
measures are the first, and comprise substantially 
all the observations of this star. 

There is no lack of positions of D, as this is 
readily seen with the smallest apertures. The 
change is due to the proper motion of the principal 
star. AuwERS gives this as 0^093 in the direction 
of iio?i. As this movement is nearly in the 
direction of C, it will finally become a difficult 
object, the minimum distance of 3^" being 
reached in about 275 years. 

In 1896 See measured a faint star from AB 
iii?2 : 5!'66 (1896.7s) 5«, with the 24-inch of the 
Lowell Observatory. As this star has not been 
seen elsewhere with much larger apertures, there 
is much doubt of its real existence. 

[|3 (ill). . .i3 {Mon. Not. xxxiv, 59). . ./S'. . .;83. . .^ (Am. Jour. 
Sci. Sept. 1873) (Mon. Not. XLI, 305) {Sid. Mess, x, 215) 
...iS (2875,2957,3048,3114,3142)... /3(^./. 246)... Zl (II, 
491).../! (1573,2086,2195). . .Newcomb {IVas/i. Obsns. 
1874)... OS {Foiilkoiua Obsns. IX, 222; x, 47,185) .. .Sp 
(II, II App. Ili)...Sp (2133)... Hall (II) {A. J. 247)... 
Engelmann (2678,2742,2786). . .Tarrant (2899). . .Bigour- 
dan [But. Ast. xvill) [Paris Obsns. 1883). . .Barnard (A. 
J. 447)- ■ -Lv [A.J. 382)... Hough (2978,3234). . .Wilson 
( )...See (3314,3496). . .Comstock {Pub. Washburn 
Obsy. x). . .Lewis and Dyson (Mon. Not. LVl, 359; l.ix, 
400)...Pritchett (A.J. 397)... See (A.J. 349,357,378) 
(Beob. Stermnarte, Berlin, 1892, No. 6)... -Morgan {A.J. 
439). . .Lehman (Ast. Soc. Pac. ix, 141). . .Hussey {A.J. 
397, 427). . .Doberck (3466). . .Doolittle (A.J. 416)... 
Aitken (3466,3585) {A.J. 429). ..HS ( ).. .Hough 
(3558) . . . Maw (Mem. R. A. S.\A\\). . . Lewis ( ) Hussey 
( ). . .Doolittle (Pub. Flower Obsy. l). . .Barnard ( ) 
. . . Brown ( ) ■ • ■ ] 

A few only of the measures of D are given. 
They will all be found in the references cited for 
.\B, and in the following : 

[.Madler (Fi.xstern-Systeme 1) (Dor/'ot Obsns. .\I, Xlll. xv) 
Lamont {.4nnalen A'onigsberg Stern. XVII). . .Wilson and Sea- 
broke {Mem. A'. A. S. XLiii, XLVi). . . Herschel {Man. A'. A. S. 
iv)...Gore (Ast. A'eg. xix, 144). .. Everett {Mom. A'ot. i.\i, 
464). . . Flammarion (Etoiles Doubles et Multiples) .. .Greett- 
wic/i Obsns. 1S95. . . | 



214 



General Catalogtie of Double Stars 



P 672. 71 Aquilae 
1° 31' i 



R.A. 20'^ 32™ 
Decl. 



1878.66 280.8 30.52 6.0... 12. 5 2« /3 
1892.83 280.9 30.68 6.0... 12.0 211 Ho 
1898.62 281.1 31-54 6 ...12.0 in Cg 

Discovered with the 18}^ -inch. This star has 
no sensible proper motion. 

[/3 (x). . ./3'. . .Hough (3234). . .Cogshall ( ). . .] 
P 435 Lalande 39867 



R.A. 20'' 33™ 14= 
Decl. + 14° 35' 



[876.68 113. 5 2.86 8. 1... 10. 9 4« J 

1876.81 124.0 3.45 8. 5... 10. 5 in 02 

1892.67 1 16.8 3.08 8.0... 10. 8 2n W 

1898.55 113. 3 3.32 8.2... 9.4 yi D 

Discovered with the 6-inch. Near ^8 Dclphini. 

[/3 (VII).. -.;3 (2103)... OS (Poidkowa Obsns. x).../J (l).. 
Wilson ( ) . . . Doolittle (Pub. Flower Obsy. l) . . . ] 



P 288. Dclphini 3; 



R.A. 2oh 33™ 31S 
Decl. + 15^ 25' 



1878.54 167.8 7.87 7.0... 13. 5 \n 13 
1891.51 162.0 7.71 6. 2.. .13. 2 3;/ /3 

1899.42 161. 3 7.24 6. 2... 13. 2 2f! /3 

Discovered with the Washington 26-inch. This 
star (B.A.C. 7146) has a small proper motion. 
o!o30 in the direction of 289?i (A.G.C.). Near 
a Delphi III. 

[;8 (v). . ./3 {Moil. Not. XXXV, 31). . ./S'. . ./3 (3114). . .(3 (Pub. 
L. (9. II)...] 



P 298. a Delphini 



R.A. 2oh 34" 4^ 
Decl. -|- 15° 29' 

A and B 



1891.70 223.8 28.90 4.0... 13. 5 2)1 (3 

1898.55 223.8 29.51 ...14.0 m /3 



A and C (= H 1554) 



1828 278.0 35zh: 

1878.62 279.8 42.29 

1891.70 280.5 43.81 

1898.55 278.9 43.50 



A and D 



1877.82 150.2 47.96 
1891.70 150.8 47.95 
1898.55 150.8 47.62 



A and E 



1891.70 308.9 51.65 
1898.55 308.6 50.91 



.. . 13 i« H 

. . . 12.0 3« (3 

... 1 1 . 1 2 « (5 

. . . 12.0 171 j3 



. . . 13.0 1)1 f3 
...II. 5 2;/ 13 
...12.3 in 13 



... 12.7 2« yS 

. . . 13.0 m 13 



A and F 



1879.34 113. 8 80.67 ...10.8 2/1 /3 

1891.70 114. 6 79-79 ...ii.o 2« fi 

The nearest star and some of the others noted 
with the Washington 26-inch. The 36-inch shows 
another and smaller star 14 m, about the same dis- 
tance as B, in the direction of 335°. 

AuwERS gives the proper motion of a Delphini 
ofo46 in the direction of 9o?o. All the measures 
of the Herschel star are given above. 
[/3 (v).../3 {Mon. Not. XXXV, 31). ../?■.. ./33. . .|3 (3ii4)...(3 
{Pub. L. O. II)...] 

P 1209. S.D. (17°) 6055 

R.A. 2oh 34m 9= ) 
Decl. — 17° 48' \ 

O II 

1890.66 294.3 0.45 9.0... 9.9 yi 13 

1898.73 281.2 0.63 9.0... 10. 5 2n Cg 

1899.53 290.0 0.44 9.0... 10 yi A 

Discovered with the 12-inch. It is 2 2^4 / and 
o'./^soi the 7 m star, B.A.C. 7 151. 
[/3(xvii)...^(3047).../3 {Pub. L. (9. 11). . .Cogshall ( )... 
Aitken ( ). . .] 





p 


267. S.D. (4°) 5223 










R.A. 20'' 35" 22= ) 












Decl. — 4° 49' \ 













II 








1878.68 


242.4 


2.11 9.0 . . 


9.0 


\n 


P 


1879.29 


240.0 


2.22 9.0 . . 


9-3 


yi 


Cin 


1879.59 


240.5 


2.04 10.0 . . 


10. 


m 


Cin 


1885.70 


62.2 


9.5.. 


10. 


m 


W 


1892.69 


241.6 


2.04 9.8 . . 


lO.O 


2 71 


T 


1898.66 


239-9 


2.03 g.o.. 


9-5 


3« 


Bd 



Discovered from iSyi to i8gg by S. W. Burnham 



21 



Discovered with the 9.4-inch at the Dartmouth 
College Observatory. The angle in the measure in 
yS ' is erroneously printed i5i?9, the correction for 
parallel not having been applied. It should be as 
given above. There is no change in the compo- 
nents. This pair and H 921, which is 5' s, form a 
wide quadruple. 

[/3 (vn)...j3 (2i03)...;8'...Cin5...Cin«. ..Wilson (Cin'°)... 
Tarrant {3186). . . Boothroyd ( ). . .] 

P 673. D.M. (20°) 4680 

R.A. 2oh 36'" 29'i ] 
Decl. + 20' 17 ' f 



1878.78 298.1 

1884.62 294.3 

1893.66 298.3 

1898.67 295.6 



10 7.3 ... 1 1.8 2n /3 

00 ... 2« H2 

71 7.2. ..II. 5 3;; W 

89 7. 5... 1 1. 1 yi D 



Discovered with the 1 8 5^ -inch. The n star of a 
wide pair, the other being D.M. (20°) 4682, 1^.9/ 
and I .'7 s. 

1(3 (x). . .^3'. . .Wilson ( ). . .Doolittle (Pub. Flower. Obsy. l) 
...HS( )...] 





p 


674. Yarnall 9020 










R.A. 20" 


37 


"53= / 










Decl. — 


21 


°i9'i 





















1877-51 


120 + 


I -3 + 




8.0. . . 10.5 


\n 


/? 


1879.78 


103.4 


1-35 




8.0. . . 10.8 


\n 


Cin 


1892.79 


99-9 


1. 19 




8.0. . . II.O 


\n 


Ho 


1897.80 


103. 1 


1.69 




7 ... 9-8 


\n 


See 


1898.67 


100.9 


1.46 




7-9- -- 9-5 


4« 


D 


1898.67 


102.8 


1-59 




7.2.. . 9.7 


yi 


Cg 



Discovered with the 183^-inch. 

1/3 (x) . . ./3- . . . Cin*. . . Hough (3234) ... See (3496) . . . Doolittle 
{Pub. Flower Obsy. l). . .Cogshall ( ). . .] 



p 675- 51 Cygiii 







R.A. 20" 


38"- 31= \ 












Decl. + 


49 


°54'i 












A and B 








1878.24 


c 

IOI.5 


2.78 




6.0. . 


.13.0 


3" 


/? 


1885.54 


103-4 


3-25 








2« 


H2 


1889.45 


101.5 


2-99 




5.0. . 


.13.2 


3" 


/? 


1898.63 


102.3 


3.16 




6.0. . 


• 13-2 


3« 


A 







A and C 








1878.39 



182.4 


25-39 


. . 12.0 


1)1 


ft 


1898.60 


182.5 


25-94 

A and D 


• -12.5 


3« 


A 


1878.39 


328% 


32-85 


. . 12.0 


m 


/? 


1898.60 


328.9 


33-43 


. . 12.0 


V 


A 



Discovered with the 18^ -inch. The large star 
has a proper motion of of 031 in the direction of 
93? 7 (AuwERs). As this is nearly in the direction 
of B, its distance, if fixed, should decrease annually 
by thar amount. This movement of A during the 
time covered by the measures would be 0^6. The 
observations tend to show an increasing distance, 
and it is probable that the two stars form a physical 
system. 

[^ (x).../3-...^ (2957)... /3 (P»b. L. O. n)...H2 ( )... 
Aitken(358s)...] 



P 64. W XX. 977 



R.A. 2oh 39"" i85 
Decl. -(- 12° 17 ' 







A ar 


id B 








1876.20 




172.4 


0.63 


8.7.. 


. 9.0 


6« 


J 


1882.68 


193.0 


0.50 






\n 


Perry 


1891.84 


180.3 


0.65 


8.3-. 


. 8.4 


4« 


ft 


1894.16 


187.9 


0.50 






3» 


Sp 


1897.57 


183.8 


0.57 






m 


Bow 


1897.82 


186.3 


0.49 






in 


Dy 


1897.83 


186.9 


0-55 






III 


Br 


1898.71 


184.0 


0.61 


7-5-- 


- 7-5 


Z" 


A 


1898.75 


188.6 


0-55 






m 


Lew 



1874.67 
1891.84 



AB and C (=- OS (App.) 209) 
7.1. 



7-3 


y 


J 


8.2 


y 


ft 


7-5 


2n 


A 



158.6 96.46 

158.1 96.45 
1898.68 157.8 96.60 7. 

The close pair was discovered with the 9.4-inch 
of the Dartmouth College Observatory. There ap- 
pears to be slow direct motion in angle. The 
measures show no change in the distant star C. 
All the observations of this are given. There is a 
small star nearer AB, which has been measured 
from the close pair as follows: 



1874.25 119. 3 
1891.84 118. 9 



62.22 



. . 10.7 
. . 10.5 



2l6 



General Catalogue of Double Stars 



[(3 (i). . .j3 {Mon. Not. xxxill, 351) . . ./S (3114). . .|3 {Pub. L. O. 
II)... /I (2086)... Sp (III)... 4 (l)...Vtvry (Eizg.Meck. 
XXXVI, 65). . .Lewis, Bow3'er and Dyson {Man. Not. LIX, 
400) . . . Aitken (3585) .. . Brown ( ) . . . ] 



p 152. Ccphci SS 



R.A. 20" 39'" 18= 
Decl. + 56° 57' 



1876.01 iii.o 0.45 7.2... 8.0 5« J 

1878.53 112.3 0.55 7.0. . . 9.0 m (8 

1885.57 no. I 0.56 ... 2H HS 

1889.40 107.5 °-6o ... 6« Sp 

1897.90 106.8 0.50 ... m Br 

1898.68 103.6 0.67 7-5.-- 9-0 yi A 

Discovered with the 6-inch. There may be some 
change in the angle. This is Radcliffe 4932. 

[j3 (in)...j3 [Moji. tVo/. XXXIV, 59) . . .|3'. . . zl (i)...Zl (2086) 
...Sp (hi) ... Aitken (3585) . . . HS ( )... Brown 



P 834- D.M. (6°) 4638 



R.A. 2o'> 39™ 48^ 
Decl. + 6° 43' 



1881.58 134.0 2.44 8.5...11.0 6n /3 

1886.86 131.7 1.97 . • • 4'i UL 

1887.81 133-3 2.14 8.3...11.0 3« Com 

1898.68 130.9 2.41 8. 9... 10. 5 4« D 

Discovered with the i5j^-inch at the Washburn 
Observatory. 
[/3 (xil). . ./3't. . .Updegraff and Lamb {Pui. Washburn Obsy. 

v). . .Comstock {Pub. Washburn Obsy. vi). . . Doolittle 

{Pub. Flower Obsy. l) . . . ] 





f 


ti53. 


B.A.C. 7 


187 










R.A. 20" 


40'" 10=^ 


( 










Decl. — 


26° 51 ' 






1876.78 




282.2 


// 
1. 61 


7-5- 


. 9.0 


i« 


Cin 


1877.70 


282.7 


1-34 


7.0. 


- 9-5 


m 


Cin 


1882.62 


286.0 


1.65 


7-7- 


. . 9.0 


211 


W 


1892.61 


285.5 


1-39 


7.0. 


. 10. 


\n 


W 


1894.73 


280.0 


0.89 


7 • 


. 10 


I /I 


Sel 


1896.83 


280.0 


1-49 


6-5- 


. I I.O 


271 


See 


1897.68 


273.0 


1-55 


iy2. 


. 10 


2n 


Sc 


1897.74 


274-3 


1.66 






\n 


See 


1898.71 


274.1 


1.38 


7.1. 


. 9.8 


A,n 


D 



[/3 (iii).../3 (A/wz. tVo/. xxxiv, 59). . .Cin3. . .Cin'». . .Wilson 
(Cin'°)... Sellers (3303)... See (3496)... See ( )... 
Doolittle {Pub. Flower Obsy . \) . . ."S^coW. {Mon. Not. -LVyi, 
427)---] 

P 471- D.M. (61°) 2046 

R.A. 20'' 41"" 1= ) 
Decl. -|- 62° 0' ( 

o u 
1876.72 305.9 1.46 10.0...10.0 in d 

1893.79 308.0 1.97 10. o... 10.3 yi W 

1898.45 307.0 1.78 10.3... 10. 9 3« D 

Discovered with the 6-inch. 

[/3 (ix). . .iS {Afon. Not. xxxvill, 78). . .Zl (i). . .Wilson ( ) 
. . .Doolittle {Pub. Flozver Obsy. l). . .] 



p 676. e Cygni 



R.A. 20'' 41"" 21 = 
Decl. + 33° 31' 



1852.63 


338-8 


40.69 


2 


. . 12 


\n 


02 


1861.63 


332-6 


39-64 


2 


- -12-5 


111 


OS 


1878.08 


320.9 


37-72 


3 • 


. . 12 


2n 


/? 


1883.60 


316.5 


38.66 






2 ft 


HS 


1891.52 


310.3 


38.68 


- . 


-•13 


V 


/8 


1898.31 


305-3 


39.22 




• -12.5 


211 


/3 


1898.59 


305-2 


•39-14 




. . 12.0 


3« 


A 


1898.67 


304-3 


39-64 




. . 12.0 


yi 


D 



Discovered with the i8j^-inch. The large star 
has a considerable proper motion, 0^48 1 in the 
direction of 46? 5 (Auwers). This corresponds 
with substantial exactness to the displacement of 
the companion shown by the measures. The small 
star had been seen by OS as appears by his ob- 
servations published long after my Tenth Cata- 
logue. 

[(3 (x). . .i3'. . ./3 (3114). . .iS {Pub. L. O. II). . .OS {Poulkowa 
Obsns. x)... Aitken (3585). .. Doolittle {Pub. Flower 
Obsy. I)...-] 

P 364' Lalande 40166 



R.A 
Decl 



. 20'' 41"" 52= ) 

1. +24° 58' s 



Discovered with the 6-inch. 



1876.17 219.3 i-o6 8.7... 8.9 4;; A 

189-2.75 220.5 1-25 8.7... 8.7 2n Ho 

1898.64 223.3 1-31 8.5... 8.7 yi D 

Discovered with the 6-inch. In a low power field 
with 30 Viilpeciilae. 

[/3 (vi).../3 (2062). ..A (i). . .Hough (3234). .. Doolittle (Pwi^. 
Flower Obsy. 1) ... J 



Discovered from 18'] i to i8gg by S. W. Burnham 



217 



P 65. 13 Delphi iii 









R.A. 20'' 


41"" 52^ \ 












Decl. + 


5° 34' ' 








1875.44 


1 86° 4 


1.61 


5.2.. 


. 8.8 


4;/ 


J 


1876.85 


178 


6 


1.42 


6.0. . 


. lO.O 


in 


05 


1878.47 


186 


3 


1.72 


5.2.. 


. 9.0 


3« 


Sp 


1884.62 


187 


3 


1.76 






2« 


HS 


1887.40 


188 


8 


1-59 


5.2.. 


. 9.0 


A" 


T 


1888.65 


186 


8 


1.49 


5.0. . 


. 9.2 


171 


Lv 


1888.70 


187 


I 


1-54 






2n 


T 


1895.62 


189 


7 


1. 41 






yi 


Col 


1897.84 


188 


4 


1.48 






2« 


Br 


1898.62 


189 


I 


1.42 


6.4.. 


■ 7-7 


3« 


D 



Discovered with the 6-inch. The measures do 
not show any material relative change. The proper 
motion of this star is very small, o!'oio in the direc- 
tion of 264?5 (AUWERS). 

[/3 (i).../3 {Mon. Not.xx\m, j,Si) . . .^ (O---^ (2081)... HS 
( )...0S {Poidkowa Obsns. x)...Sp (11). . .Tarrant 
(2866) . . . Lv' . . . Doolittle {Pub. Flower Obsy. l) . . . Brown 
( ). . .Coleman {Mem. R. A. S. Llll). . .] 



P 677. T Cygni 







R.A. 20'' 42" 23= 












Decl. + 33° 56' 












A and B 













// 








1878.41 


121. 3 


9.66 7.0. . 


. 12.0 


\}i 


/8 


I88I.7I 


119. 8 


9.65 6.0. 


. II. 7 


y 


Ho 


1885.55 


117. 7 


10.15 




m 


H2 


1890.52 


120.9 


9.91 5.6.. 


. 12.2 


y 


/3 


1898.31 


I 20.7 



9.88 6.0. . 
A and C 


. I 2.0 


2« 


/8 


1890.52 


194.4 


12.35 


•13-3 


3« 


/3 


1898.31 


195-9 


12.46 


•13-5 


2;/ 


fi 



The nearest companion was detected with the 
1 83^ -inch ; the other with the 36-inch. The varia- 
bility of this star was discovered by Schmidt ; pe- 
riod supposed to be about one year, 514 to 6 m. 
The Harvard photometric magnitude is 5.2. Ball 
measured a distant star in his examination for 
parallax [Dinisink Obsns. iii). 



[li (x).../3'...i3 (3048)... /J (P„b. I.. O.w) 
...IIS( )...] 



.Hough (297S) 



P 66. D.M. {66-) 3995 







R.A. 20>' 


42 


'" 59= 


\ 












Decl. -f 


27 


° I ' 


s 








1876.00 


i58°9 


;; 
1.23 




8.6. 


. . 


9.1 


5'' 


A 


1883.16 


159-5 


1-57 




8.2. 




8.5 


5« 


En 


1890.84 


161. 7 


1-57 










2)1 


Maw 


1898.70 


159-5 


1. 16 




8.4. 




8.9 


4fi 


D 



Discovered with the 6-inch. 
[/3 (l)...i3 {iMon. Not. xxxiil, 351)...^ (l). . .Engelmann 
(2678). . .Maw (yl/f;«. R. A. S. L) .. .BooUnle (Pub. F/ower 
Obsy. I) . . . ] 



P 268. Radcliffe 4958 







R.A. 20h 


43 


T, ijS 


} 












Decl. + 


41 


°38' 


^ 








1875.88 



221.4 


0.42 




7-4- 




8.3 


211 


J 


1884.31 


216.2 


0-53 










yi 


H2 


1888.64 


2 16.4 


o.5± 










1" 


Sp 


1893.62 


218.4 


0.52 




7.8. 




8.8 


v 


\W 



Discovered with the 9.4-inch at the Dartmouth ' 
College Observatory. About 21' //is 02 414. 

1j3 (v)...^ {Mon. Not. xxxv, 31)... i (i)-..^ (2086)... HS 
{ )...Sp (in)... Wilson ( )...! 

P 365- O. Arg. N. 21 118 



R.A. 2oh 43"" 36^^ 
Decl. + 51° 21 ' 



1892.77 285.2 14.80 8. 5... II. 8 2« W 

1898.69 286.1 14.53 8. 5... 10. 8 I// /8 

Discovered with 6-inch. 2 2732 is i'" 29= /> and 
6. '7 J. 

[(3 (vi).. ..p (2062)... Wilson ( ).. .J 



P 366. O. Arg. N. 21157 

R..\. 20'' 44"" 49^ ^ 
Decl. + 50° 3' S 







A anc 


H 













;/ 










1876.44 


128.5 


1.40 


8.2. 


.. 8.5 


S" 


J 


1893-55 


127-5 


1.24 


8.2. 


.. S.5 


2)1 


Lv 


1893.72 


129.0 


1.47 


8.0. 


.. 8.5 


2fl 


W 


1896.88 


(152.3) 


1.86 






\)t 


Mot£.in 


189S.48 


128.6 


1.42 


8.3. 


.. 8.4 


y 


D 


1898.69 


130-5 


1. 21 


8.5. 


.. 8.7 


I/; 


/J 



2l8 



General Catalogue of Double Stag's 







C and D {= A) 








1876.44 





li 
1.07 


10.7 . . 


. 1 1.2 


5« 


J 


1893-55 


1.2 


1-35 


10. . . 


. I I.O 


\)i 


Lv 


1898. 48 


6.9 


1.72 


9.4. . 


. 9-8 


3« 


D 


1898.69 


5-0 


1. 41 
AB an 


10.3. . 
dCD 


.10.5 


i« 


^ 


1876.30 


106.3 


50.78 


, . 


. 


3« 


zl 


1893.72 


106.1 


50-71 


. . 




\n 


W 



A and C 



yi D 
i« /3 



1898.48 105. 1 50.64 
1898.69 107.2 51.54 

The pair AB and the distant companion C were 
discovered with the 6-inch. The latter was found 
to be double by J while measuring AB. Both pairs 
are without change. OS 41 2 is 2™ 48^/ and 11' n. 

[/3 (vi).../3 (2062)...zl (i)...Lv (^./. 382)... Wilson ( ) 
...Morgan [A. J. 439).. .] 

P 67. Lalande 40318 







R 


A. 20'' 


45 


" 37' 












Decl. + 


30 


° 28' 








1875-45 


287^1 




I-51 




6.9. 


. 10.2 


4" 


J 


1876.70 


289.4 




1.84 




7.0. 


. 10. 


III 


02 


1885.38 


283.6 




1-73 








A,n 


HS 


1892.67 


291.2 




1.68 




7.0. 




m 


W 


1897.79 


288.1 




1.62 








III 


Br 


1898.58 


286.9 




1.36 




7.0. 


- 9-3 


yi 


D 



Discovered with the 6-inch. OS 415 is 30' s.. 

[;3 (I). ../3 (yl/o«. A^o/. xx.Klll, 351).. .zl (i)...OS (Poidkowa 
Obsns. x) . . . Wilson ( ) . . . Doolittle {Piih. Flo-ver Obsy. 
I)...HS( )...Brown( )...] 





p 


250. Lalande 40340 










R.A. 20'' 45 


-51= \ 










Decl. + 46 


- 13' \ 






1875.60 




7.6 


// 
20.30 


7.0 ... I. 2.0 


in 


J 


1876.70 


5-2 


20.04 


6.5. ..II. 5 


\n 


OS 


1885.55 


6.9 


19.92 




in 


HS 


1892.86 


7-4 


19-43 


7.2 .. . 12.0 


2« 


W 


1898.46 


6.6 


19.58 


7.2 .. . 10. 


3« 


D 



Discovered with the 6-inch. 

[/3 (v). . .^ {Mon. Not. xxxv, 31).. A (i) . . .O'L [Poul/cowa 
Obsns. X). . .Wilson ( ). . .Doolittle (Pub. Flower Obsy. 
1)...HS{ )...] 



P 154. Lalande 40292 



R.A. 20*^ 46" 6= 
Decl. — 16° 37 ' 



1875-73 
1877.60 
1879.66 
1879.69 
1886.77 
1888.57 
1890.51 
1898.62 



63.0 
61. 1 
60.1 

59-8 
60.9 
64.9 
66.3 
59-6 



2-74 
3-03 
2.91 
2.88 
2.87 

2-73 
2.66 
2.88 



Discovered with the 6-inch 

[;8 (hi). . ./3 (Mon. Not. xxxiv, 59) 
LM. . .Lv'. . .Glasenapp (l). 
Obsy. I). ..] 



10 



4« 
in 
in 

2« 

yi 
\n 
in 

4 yi 

Evidently fixed 



J 

Cin 

Cin 

Cin 

LM 

Lv 

Gl 

D 



, .Cin't. ..CinS. . .Cin«... 
.Doolittle (Pub. Flower 



P I55« O. Arg. N. 21217 



R.A. 20*' 47™ 24^; 
Decl. + 50° 58' 



1876.49 


25.2 


0-55 


1884.60 


23-5 


0.70 


1884.90 


24.2 


0-39 


1888.93 


26.6 


0.58 


1897.90 


28.3 


0-75 


1898.46 


27-3 


0.76 



6-5 



7-3 



7-3 



7-4 



7-7 



7-9 



bn 


A 


2n 


HS 


5« 


En 


2n 


Sp 


\n 


Br 


3« 


D 



Discovered with the 6- inch. A fine pair, but no 
material change. HS measures a third star, 25?5 : 
i7!'74 (1885.53) I'''*- This star was observed by 
Ball for parallax. The comparison star is 198" 
distant in the direction of 48?4 {Dunsink Obsns. 
v). S 2732 is 2^ 18'/ and 30' n. 

[iS (iii).../3 (Mon. Not. xxxiv, 59)... zl (l)...Zl (2086)... 
Engelmann (2786)... Sp (in) ... Doolittle i^Pub. Flower 
Obsy. \) . . .H^ ( )... Brown ( )...] 







P 


367. Lalande 4 


3478 










R.A. 20'' 49 


■"54= 


\ 

s 










Decl. 4- 27 


°38' 










A and 


B 








1876.37 



II5-7 


II 
0-55 


7-5- 


- 7-9 


4« 


J 


1882 


68 


105.0 


0.45 






in 


Perry 


1883 


66 


139-7 


0-35 


7.8. 


. 8.2 


6« 


En 


I89I 


68 


129.8 


0.44 


8.0. 


. 8.6 


y 


/3 


1897 


74 


135-6 


0-55 






v 


Dob 


1897 


83 


137-1 


0.42 






in 


Br 


1899 


51 


136. 1 


C.42 


8.0. 


. 8.1 


y> 


A 



Discovered from iSji to i8gg by S. W. Burnham 



21Q 



AB and C 

1875.60 28% 30.88 
1891.68 24.0 31-50 
1899.50 22.8 31-82 

AB and D 

o // 

1899.50 92.6 30.94 



12.0 \n J 
12.0 7,n fi 
12.2 211 



A 



14.0 211 A 



Discovered with the 6-inch. There seems to be 
some angular motion in the close pair. In the 
field with 32 Vulpeciilae. The proper motion of 
this star from Bossert is o!'i6o in the direction of 
1 38? 5. The two measures of C give ori47 in i3i?3. 
This star is fixed in space with reference to the 
binary AB. 

J/3 (vi). . ./3 (2062,3114). . .j3 {Pub. L. 0.ll)...A (i). . .Perry 
(Ejig. Mech.-^X-XV\,(iS) ■ ■ .Engehnann (2742). . .Doberck 
(3466). . .Brown ( )...Aitken( )...] 

p 1034. 7 Aqiiarii 



1888.68 165.0 
1897.72 163.7 



Discovered with the 36-inch. It is not a diffi- 
cult pair. The measures of 1888 were made with 
the 12-inch. The principal star has a proper mo- 
tion of o!'o33 in the direction of 257?8 (Auwers). 
It is very probable that this is a physical system. 



R.A. 20" 50™ 25=^ ) 








Decl. — 10° 9' \ 








ti 
2.09 6.0. . 


.11.7 


5^' 


y8 


2.05 


. 


V> 


A 



[(3 (XIV)... /3 (2875)... ,3 {P'^l'- L. O. 
429).-.] 



P 764. S.D. (q") 5631 



, Aitken {A. J. 



1880.55 354.4 

1886.79 173-2 

1893-75 353-8 

1898.75 359-0 



1880.55 1 1 2.9 
1893.71 112.3 
1898.75 112.0 



R.A. 20'' 


52- 22^ I 








Decl. — 


9° 50' \ 








A and B 








;/ 
0.90 


9.0.. . 


9.2 


in 


^ 


0.64 


9.2. . . 


9-3 


2U 


LM 


0.79 


9.0. .. 


9-3 


3'' 


W 


0.86 


8.7... 


8-7 


l" 


Bd 


AB and C 








99.62 




9.0 


\n 


ft 


99.64 




9-1 


3« 


\V 


100.34 




8.4 


V 


Bd 







AB 


md D 








1880.55 



21.6 


137-45 




. 9.0 


\>i 


ft 


1893.71 


21.5 


137-17 




. 9.1 


V> 


\\ 


1898.75 


21.6 


137.80 




. 8.2 


y 


Bd 



Discovered with the 6-inch. The close pair is 
the/ star of a small triangle. The other stars of 
the triangle, C and D, are S.D. (9°) 5632 and 5635. 
Wilson measures 11.5m star from AB, 90?5 : 58 ^20 
(1893.71) 3«; BooTHROYD, 89?7 : 59.'o8 (1898.75) 
3 "■ 
[/3 (XI) ... ^^ ... fi^ .. . 1..M . . . Wilson ( ) . . . Boothroyd 



)-..] 



P II37- B.A.C. 7278 

R.A. 201^ 52" 37= { 
Decl. -+-50° 16' ( 



1889.44 


344-3 


6.88 


6.0. 


•13-7 


y 


ft 


1898.31 


346.1 


6.94 


7.0. 


.13.2 


2 It 


ft 


1898.72 


343-9 


7.20 


6.0. 


-14-3 


y 


A 



Discovered with the 36-inch. This is a naked- 
eye star in Cygiius; Harvard photometric magni- 
tude 5.9. 
[/3 (XVI)... ^ (2956)... /3 {Pub. L. 0. II)... Aitken (3585)---] 



P 765- Lacaille 8632 



R.A. 2o'> S3™ 9^ \_ 
Decl. —35° 45' \ 



1879.74 


140± 


2± 


7-0. 


. 1 1.0 


Ml 


ft 


1891.85 


139-I 


2.06 


6.9. 


.12.3 


3« 


ft 


1891.76 


126.4 


2± 


7 


.I2J.< 


1« 


Sel 


1898.68 


130.3 


1.86 


7.0. 


. lo.S 


V 


A 


1898.73 


140.7 


2.32 


7 ■ 


. 12.5 


111 


Bd 



Discovered with the 6-inch at Mt. Hamilton in 
1879. I" Cord. G.C. 7.1m. 
[jS (XI ).../3^.. 18(31x4)... (3 (AiiJ. L. a I, II)... Sellers (31S4) 



. . .Aitken (3585). . .Boothroyd ( 



-] 



P 678. Lalande 40636 

R..-V. 20'' 54'" 20^^ [ 
Decl. — 8' 49' \ 



1878.7S 


185-9 


2.45 


8.0. . 


. 11.5 


I« 


ft 


1879.64 


1S9.7 


2-37 


S.O.. 


. 1 1.0 


2// 


Cin 


i8S6.Sc 


192.6 


.... 


8.3- • 


.12. 5 


1« 


LM 



220 



General Catalogtie of Double Stars 



1893-77 


202.5 


2-43 


8.0. 


.11.7 


yi 


W 


1897.84 


201.4 


2.49 






\n 


Br 


1898.68 


197.8 


2-37 


8.4. 


.11.4 


A,n 


D 


1898.82 


200.0 


2.55 


8.0. 


. I I.O 


2n 


A 



Discovered with the 18% -inch. 

[/3 (x) . . . /3' . . . CinS . . .. LM . . . Wilson ( ) . . . Brown ( 
Aitken (3585). . .Doolittle (Pub. Flower Obsy. i) . . 



P 68. O. Arg. N. 21466 

R.A. 20'' 55"" 36= } 
Decl. + 49° 45' f 



1875.21 


I53-I 


1.79 


8.5.. 


. 9.2 


4;/ 


J 


1882.68 


151. 


1.82 


8.5-. 


. 9.0 


1)1 


Perry 


1892.67 


151. 6 


1.97 


8.3- ■ 


. 8.9 


3" 


w 



Discovered with the 6-inch. Unchanged. S 2741 
is 56^ / and 15 .'4 /;. 

[^ (i).../3 {Mon. Not. XXXIII, 351)... zl (l)... Perry {Eng. 
Mech. XXXVI, 65) . . .Wilson ( ) . . . ] 

P I2I0. Piazzi XX. 440 







R.A. 20'' 


56™ 6= 












Decl. + 


48" 13' 












A and B 








1890.63 


119. 9 


// 
2.30 


7.6.. 


.12.3 


3« 


/8 


1898.42 


II 7 . 2 


2.35 




. 12.2 


V^ 


)8 


1898.60 


120.2 


2-54 


7.0. . 


. 12.2 


211 


A 



C and D (= OS 425) 



1851.70 
1890.63 
1898.46 
1898.60 



135-0 
134.2 

133-0 
133-4 



4.28 

4-31 
4-32 



10.5. 
10.8. 



. 1 1.0 

. 1 1.2 



-- .11-5 



3« 

2>t 

in 



02 
A 



A and C (= OS 425) 



1847.49 


27.6 


r2.33 7.0.. 


1868.43 


29-7 


12.81 7.2 . . 


1890.63 


28.6 


i3-'8o 


1898.45 


28.0 


13-80 


1898.60 


28.0 


13.98 

A and E 



. I 1.0 



3« 


02 


4« 


J 


yi 


/? 


2n 


/? 


2n 


A 



1898.46 18.0 45.17 



iS 



The close corajjanion to the principal star of the 
triple, 02 425, was discovered with the 36-inch. 
All the measures of the other stars are given above, 



except a measure of the angle of AD on one night,. 
46?o (185 1.70); and from this and the angle of CD 
he gives 4!ii for the distance of CD. 
[/3 (xvil).../3 (3047)... /3 {Pub. L. O. 11)... OS {Poulkowa 
Obsns. IX) ... 4 (i) • . . Aitken (3585) . . . ] 

P 1290. D.M. (46°) 3142 



5-44 



16.3 



1898.44 271.3 



1898.44 25.4 



R.A. 20*^ 56"" so"- 








Decl. + 47° I ' 








A and B 








II 








3.90 9.2. 


• 9-4 


3« 


li 


A and a 








II 
3-05 


.13.1 


2,n 


^ 


B and b 








2.42 


.13-8 


in 


/8 



Discovered with the 40-inch. A pair of small 
stars, each with a faint companion. It is 64' /and 
2' -r of 59 Cygni (^ 2743). 



P 472. D.M. (61°) 2078 



R.A. 20'' 57"" 9= 
Decl. -|- 61° 24' 



1877.69 


5-8 




0.66 


8.2.. 


8.5 


yi 


A 


1893.67 


6.0 




0.77 


8.3.. 


8.7 


yi 


W 


1898.97 


4.4 




0.87 


8.3.. 


8.7 


yi 


D 


Discovered w 


th the 6-1 


nch. 








[^(IX)... 


j3 {Mon. . 


Not. 


XXXVIII, 78). . .zl 


(I).. 


Wilson ( 


. ..Doolittle {Pub. 


Flower 


Obsy. I).. 


.] 








P 69. W 


^xx. 1743 










R.A. 20*^ 


57'" II' \ 












D 


lA. + 


21° 13' \ 














A and B 








1875.42 


314.6 




0.97 


8.2.. 


9.0 


3'^ 


J 


1881.62 


313-9 




0.88 


8.0. . 


8-5 


2n 


Ho 


1882.68 


313-5 




T.22 


8 .. 


9 


191 


Perry 


1884.22 


313-7 




1. 41 


8.0. . 


9.0 


611 


En 


1891.84 


316.5 




0-95 


8.3.. 


9-1 


3« 


/8 


1896.72 


31I-7 




0.72 






in 


Lew 


1897.62 


315-2 




1.02 






2 71 


Bow 


1898.72 


311. 1 




0.97 






m 


Bow 


1898.73 


313-9 




0.85 






m 


Lew 



Discovered from ^Sji to i8gg by S. W. Burnham 



221 







AB and C 








1875.81 


238% 


// 
78.44 




. 7.0 


\n 


J 


1884.78 


238.9 


78.47 




. 8.1 


yi 


En 


1891.34 


239.0 


77.88 


. 


. 8.1 


y 


/8 


1899.42 


239-5 


77.86 






in 


li 



1891.84 154.6 

1895.65 155-0 
1899.42 153.0 



C and D (= Ho 599) 

// 
19.47 

18.40 

18.91 



13 


in 


li 


12 


2JI 


Ho 




2)1 


iS 



Discovered with the 6-inch. The measures show 
no change in the close pair. C and D make Ho 
599. 

[iS (i). . ./3 [Mon. Not. xxxiii,35i). . ./3 (3114J. . .^3 [Puh.L. O. 
Jl)...zl (l)... Perry {Eng. Mech. XXXVI, 65)...Engel- 
mann {2678). . .Lewis and Bowyer {Moji. Not. Lix, 400) 
...Hough (3SSS}-.-l 



p 121 1. Lalande 40744 



R.A. 2o'' 57'" 15= 
Decl. — 18° 35' 



1890.65 344.7 0.58 7.5- ■- 8.1 3« /? 

1897.72 347.6 0.67 ... 3« A 

1897.75 349.0 0.52 7.8... 9.0 in See 

Discovered with the 12-inch; the / star of a 
small triangle. 

[/S (xvil). . ./3 (3047). . .(3 {Pub. L. O. 11). . . Aitken [A.J. 429) 
...See (3496).. ■] 



p 156. Groombridge 3369 







R.A. 20'' 57 
Decl. -f 46 


"39^ / 
= 6' \ 








'875.41 



241.6 


105 




7.1. . . 


9.4 


V 


J 


1891.62 


245-9 


0.99 




7.5. . ■ 


9.9 


yi 


/8 


1896.64 


247.6 


I. II 








2/1 


Lew 


1898.57 

Dit;rnv 


242.1 


1. 14 

fii flip r^. 




7.8... 


9-5 


4fi 


D 



Cgyni (02 426). 

[^ (III). . .^{A/o,i.Not. xxxiv, 59). . ./a(3li4). . ./3 {Pi,l:. L. O. 
II)... J (l)... Lewis {Moil. Not. i.ix, 400) . . . Doolittle 
{Pill). 1-lou'cr Obsy. I). . . J 



P 445- Cygni 287 







R.A. 20" 


58- 


n 23S ^ 










Decl. + 


28 


'37'^ 






1877.58 




106.6 


4.60 




7.5. ..12.0 


171 


J 


1878.58 


1 14.4 


4.96 




7.0. . . 10.5 


m 


02 


1881.89 


108.9 


4-73 




7.0. ..II. 4 


yi 


Ho 


1884.66 


II I.I 


4.99 






2n 


H2 


1892.68 


1 10.5 


4.77 




7.5. ..II. 8 


2)1 


\\ 



Discovered with the 18^ -inch 



Lalande 40821. 



[^ (VIII)... ^ {Am.Jour.Sci.^^x\yl■i■]■])...A (i)...HS( ) 
. . .OS {Poulko-cua Obsns. x) . . . Hough (2978). . .Wilson 



P I138. Lalande 40856 







R 


A. 20'' 


58 


"34^ } 






D 


ecL + 


45 


° 22' i 


1888.82 


i85°8 




o.3± 




7 .. 


1889.44 


188.7 




0.29 




7.2. . 


1894-75 


187.4 




0.25 




7 .. 


1897.92 


189.2 




0.36 







2)1 


Ho 


i" 


13 


in 


Ho 


m 


Lew 



1898.72 185.7 0.32 



8.= 



8.0 2)1 A 



Discovered with the 36-inch, but it is given in a 
list of new pairs subsequently published by Hough, 
by whom it was- observed in 1888 (= Ho 282). In 
D.M. 6.7 m; A. G. C. 7.2 m. 

[P (xvi) . . .(3 (2956). . .(3 {Pii/K L. O. 11). . . Hough (2977,3558) 
. . .Lewis {Moil. N'ot. lix, 400). . .Aitken (3585). . .] 



P 269 = P 835. Lalande 40815 



R.-\.. 20'' 58"^ 39S ( 
Decl. + 7° 17' ^ 



1876.18 


252.6 


1.08 


8.1. 


. 10. 1 


5" 


J 


1879.64 


247.3 


. . . 


8.5. 


. I I.O 


\n 


Cin 


1881.66 


255.7 


0.84 


8.0. 


. 1 1.0 


3" 


/8 


1885.58 


251.4 


I-I5 


. 




3" 


H2 


1887.74 


253-2 


1.02 


8.2. 


. 10.2 


3" 


Com 


1890.38 


253-3 


1. 00 






5-" 


Sp 


1898.48 


249-9 


I.I I 


9.1 . 


• 9-9 


4// 


D 



Discovered with the 9.4-inch at the Dartmouth 
College Observatory. It was again found with the 
i5ij-inch of the Washburn Observatory, and inad 
vertently included as new in y8 (xu). It is possible 



222 



General Catalogue of Double Stars 



that H' I. 62 is identical with this pair, assuming 
an error of 1° in Herschel's declination of his 
pair. His place is in the same R.A., but 1° south. 
There is no pair of his Class I in or near that 
place. Herschel measured the position-angle 
twice, 234?8 (1783.40) and 237?! (1802.80). If 
direct motion should be shown by later measures 
of y8 269, there would be but little doubt as to the 
identity of the two pairs. The measures in Cin^ of 
^ 269 and /? 70 are transposed. 

[/3 (v, xii). . ./3 {Mon. Not. xxxv, 31; xxxvii, 280). . .^'■. . .A 
(l). . .CinS. . .Comstock {Pub. Washburti C/wjr. vi). . .Sp 
(III). . .Doolittle {Pub. Flower Obsy. l). . .] 



P 1 139' Groombridge 3375 



R.A. 20'' 58'" 39=^ 
Decl. + 56° 36' 



1889.37 138.6 1.86 6.0... 12. 5 3;/ /? 

1898.79 140.8 2.05 6.0... 13. 2 3« A 

Discovered with the 36-inch. 
[iS (xvi)...(3(2956)...(3(/'//^. Z. O. n). . . Aitken (3585). . .] 



P 70. Lalande 40824 



R.A. 10^ 58™ 52^ 
Decl. + 11° 33' 







B and C 










1879.64 




95-0 


3-59 


10. 0. 


. 1 1 


.0 


\n 


C 


1891.63 


96.7 


5.16 


10.2 . 


. 10 


4 


2)1 


a 


1898.69 


96.3 


5-38 


II. 0. 


. 1 1 


.0 


211 


D 


1899.50 


96.2 


5-33 
A ar 


11. 0. 
id B 


. 1 1 


.0 


211 


(i 


1891.64 


238^8 


78''63 


8.0. 






2)1 


/8 


1899.50 


239.1 


79.06 




• 




2/1 


/? 






A and C 










1898.69 


237-4 


75-09 








211 


D 


1899.50 


236.4 


74.80 


8.0.. 






211 


i8 



Discovered with the 6-inch. The measures in 
Cin^ of fi 269 and (i 70 are transposed. 

[/3 (i).../3 (Mon. Not. xxxm, 351)... /3 (3ii4).../3 {Pub. L. 
O. II). . .CinS. . .Doolittle {Pub. Flower Obsy. i). . .] 



P 157. Aquarii 43 







R.A. 2lh 


Qm 21S 












Decl. — 


14° 24' 












A and C 








1876.54 




81.9 


// 
21.36 




. 12.0 


\n 


J 


1878.5-9 


83-7 


20.99 




. 12.0 


1)1 


/8 


1879.64 


80.7 


20. 10 




. 12.0 


\n 


Cin 


1898.52 


74-7 


13.90 






211 


i8 



A and B (= S 2752) 



1827.62 


145-2 


5-17 


6.7.. 


10.7 


yi 


s 


1848.67 


145-3 


5.61 






m 


Mh 


1866.68 


149.4 


5-55 


7.0. . 


10.5 


yt 


A 


1878.59 


151-9 


5.60 






Ml 


/8 


1879.64 


151-4 


5-35 


8.0. . 


10.5 


111 


Cin 


1898.52 


155.0 


5-51 






211 


/8 



The faint star, C, was noted with the 6-inch. 
The principal star has a proper motion of of339 in 
the direction of 9o?o (Pokier), and evidently the 
2 companion, B, is moving with it. The change 
in C corresponds to this movement, and therefore 
that star does not belong to the system. It will 
finally be nearer to A than B now is. the minimum 
distance of 3" being reached about 1939. All the 
measures of AB are given above. Madler [Doi-pai 
Ohsiis. xi) has an angle, 26? 5, which must belong 
to some other pair. 

[i3 (iii)...j3 {Mon. Not. xxxiv, 59). . .(3'. . .CinS. . .Mitchell 
{Cin=)...^ (II)...] 

P 368. Aqiiarii 45 









R.A. 21'' 


I- i^ ) 
8° 43' S 












Decl. — 












A and B 








1876.10 


99-3 


0.49 


7.4. . . 


7-7 


111 


J 


1877-76 


91 







7-5-- • 


9.0 


111 


Cin 


1878. II 


89 


9 


0.69 


7.2. .. 


7-5 


yi 


d 


1879.24 


89 


6 


0.67 


7-5--- 


8.6 


4)1 


Cin 


1880.73 


91 


3 


0.87 






111 


Pt 


1881.63 


90 


4 


0.63 


6.9... 


7-7 


yi 


/3 


1882.67 


89 


4 


0-5 


7.0.. . 


7-5 


111 


W 


1886.69 


90 


I 


0.70 


8.1. . . 


8.6 


211 


LM 


1886.60 


93 


3 


0.66 


7.1. .. 


8.0 


211 


Lv 


1890.64 


88 


7 


0.58 


6.9... 


7-8 


3« 


i8 


1892.10 


90 


2 


0.5S 






4« 


Sp 


1892.68 


92 


I 


0.60 


7-5- ■• 


7-5 


3" 


T 


1898.58 


89 





0.61 


7.2. .. 


8.0 


\n 


A 



Discovered from iS'ji to i8gg by S. W. Burnham 



223 







C and D 








1890.65 


317-9 


6.15 14.0. 


.14.7 


2« 


/3 


1898.58 


316. 1 


5.14 14.0. 
AB and C 


•14-5 


m 


A 


1890.65 




27.2 


12.02 


, 


2« 


)8 


1898.58 


30-9 


12.20 




\n 


A 



The bright star was suspected to be a close pair 
with the 6-inch in 1873, and verified with the same 
instrument in 1875. Ii"* measuring this with the 
36-inch, the double companion, CD, was detected. 
These are very faint stars, and require a large aper- 
ture. There seems to be no sensible change thus 
far in the close pair. Lalande 40892. 

[|8 (VI)... /3 (2062,3048)... /34.../3 {Pub. L. O. n)...A (i)... 
Cin't. . .Cin5. . .Pritchett {Fieb. Morrison Obsy. l)... Wil- 
son (Cin'°). . .LM. . .Lv'. . .Sp (lll). . .Tarrant (3186). . . 
Aitken (3585^..-] 



P679. 

R.A. 21^ I" 245 
Decl. -|- 43° 12' 



878.10 


68.1 


0.38 


10 . 


. . 10 


211 


/3 


889.45 


65.6 


0.52 


10 . 


. . 10 


i'l 


^ 


896.56 


54-0 


0.42 






\n 


L 



This close and exceedingly minute pair was dis- 
covered with the 1 8^ -inch. It is too faint for the 
D.M. It is in a low-power field sp D.M. (43^) 
3802, 8.8m. 



[^ (x).../3'.. 

LIX, 400). 



(2957)... j3 (P2ib. L. O. 11)... Lewis {Mon. 



P 473- S.D. (10°) 5606 



R.A. 21' 
Decl. - 



jm 24S 

10° 41 ' 



1877.08 


1 1 5-5 


1-74 


9.0. . 


. 10.2 


3« 


J 


1893-53 


114. 9 


1.88 


8.5. 


. 10. 


2« 


Lv 


1893.81 


118. 5 


1-79 


8.5. 


- 9-5 


I« 


w 


1898.65 


118.0 


1.82 


8.2.. 


- 9-7 


yi 


Cg 



Discovered with the 6- inch In S.D. S.om. A 
12.7m star, CoGSHALL 357?2: 25^37 (i,S9H.67)'"2//. 

[/3 (IX). . .(3 (yl/o;/. A^o/. xxxvni, 78). .. J (i)...Lv (//./. 382) 
.. .Wilson ( )...Cogshall ( )...] 



P 158. Lalande 40984 

R.A. 21^ I"' 37» / 
Decl. + 47' 19' i 



1875.72 


314-9 


10.44 


7-3- 


.11.8 


Z" 


J 


1879-57 


314.6 


10.72 


8.5. 


■12-5 


\n 


/3 


1891.57 


3M-I 


10.84 


8.0. 


.11.2 


2« 


/? 


1898.86 


313-9 


10.89 


7-9-- 


.11.1 


4" 


D 



Discovered with the 6-inch. In the field /a new 
double nebula was found at the same time(DREYER 
7026). 

[/3 (III). . .^{Mon. Not. XXXIV,S9). . .i33. . .§ (3114). . .^[Pub. 
L. 0.\\)...A(\)... Doolittle (Pub. Flower Obsy. l) . . . ] 



P 680. D.M. (53°) 2546 







R.A. 2i'> I" 52^ 


\ 










Decl. +53° II ' 


\ 










A and B 








1877-57 




131-4 


o-5± 8 . 


- 8+ 


ill 


li 


1877.70 


128.3 


0.63 8.1. 


. 8.6 


in 


J 


1885.53 


309.0 


0.70 




in 


H2 


1890.74 


306.7 


0.58 




6« 


Sp 


1891.65 


310. 1 


0.64 8.4. 
AB and C 


. 9.2 


Z" 


yS 


1890.58 




34-2 


23-95 




\)i 


Sp 


1885.52 


Z7,-(^ 


23.41 




I// 


H2 



1891.66 32.8 23.31 



211 ^ 



Discovered with the 181^-inch. Further meas- 
ures of the close pair are needed. 

1/3 (x). . .iS'. . .(3 (3114). . .|3 {Pub. L. a II). . . J (I). . .Sp (in) 

...HS( )...] 



P836. 



W= X.\. 1S80 



R.A. 21" 2'" 275 ^ 
Decl. +47"^ 54' S 







.A and 


B 








I8SI.63 


191. 4 


0.62 


9.0. . 


. 9.1 


3" 


/3 


1888.08 


189.6 


0.65 


().2. . 


. C).I 


V 


Com 


IS89.29 


191-4 


0.63 


9.1.. 


. C).I 


4" 


/J 


1898.69 


183.4 


0.78 


S.5.. 


. 8.6 


4« 


A 



224 



General Catalogtie of Double Stars 







C an 


d D 








1889.29 




65.0 


// 
1.27 


10.2 . 


. 1 1.2 


3« 


/3 


1898.69 


67.0 


1.32 


10.8. 


.11.5 


211 


A 






AB and CD 








1881.63 



219. 1 


27.38 




. 10.2 


3« 


i3 


1888.15 


218.9 


27.46 


8-3-- 


- 9-5 


VI 


Com 


1889.29 


219.4 


27-45 






411 


H 


1898.63 


219. 1 


27.49 






3« 


A 



The principal pair was discovered with the 15}^- 
inch of the Washburn Observatory, and it was then 
stated that C might also be double. This was veri- 
fied with the 36-inch in 1888, thus making a pretty 
but difficult quadruple group. 

fiS (xii). . ./3-*. ..j3 (2957).../? {Pu/>. L. O. n). . .Comstock 
i^Pub. Washburii Obsy. vi). . . Aitken (3585). . . ] 

P 988. D.M. (40 = ) 4413 

R.A. 211^ 2™ 28= '\ 
Decl. + 40° 56' \ 

A and B 



1880.63 238.1 
1893.81 226.2 
1898.48 223.9 



1.20 
1.28 
1.46 



8.9.. .11.7 
9.0 . . . 12.0 



9 
A and C 



2 71 

in 



D 



1880.58 
X893.81 
1898.45 



55-4 
53-3 
51-2 



16.07 
15.08 
15.16 



Discovered with the i8i4-inch 
is probable. 

[/3 (xni). . ./33 .. .Wilson ( ) . . . Doolittle 
Obsy. l)...] 

P 837- D.M. (— 0"=) 4170 



8.9 
9-2 

9.8 

Change in AB 



2« 
171 



w 

D 



' Pub. Flowei- 







R.A. 21^ 


2- 43= ) 












Decl. — 





' I6M 








1881.73 


189-7 


11 
3-70 




8.4.. 


. 10. 1 


in 


/? 


1886.84 


186.1 


3-33 








A'l 


UL 


1887.77 


189.3 


3-53 




8.0. . 


. 10. 


3" 


Com 


1898.54 


187. 1 


3-44 




8-5-- 


. lO.I 


S" 


D 


1898.84 


187.0 


3-47 




8.3- 


- 9-5 


171 


/8 



Discovered with the i5j4-inch at the Washburn 
Observatory. Without change. 

\P (xil). . .^*. . .Updegraf¥, Lamb and Comstock {Pi/b. Wash- 
burn Obsy. v, Vl) . . . Doolittle (Pub. Flower Obsy. l) . . . ] 



p 71. Y Eqinilei 

R.A. 2\^ 4™ 30* \ 
Decl. + 9° 39' f 

A and C 



1877.73 
1888.82 
1898.57 



lo.o 41.34 
9-2 43-33 
7-9 44-30 



. . 12 



171 (3 

3« ^ 
.10.5 3// /3 



A and B (= Knott) 



1867.50 


276.8 


2.13 


II.O 271 


Kn 


1877-73 


274-5 


2.16 


177 


/8 


1883.77 


274.6 


2.17 


3« 


HI 


1888.82 


275-4 


2.14 


3« 


fi 


1897.82 


273.2 


2.40 


471 


A 


1898.55 


275.0 


2.30 


Ifl 


i8 



The distant star was noted with the 6-inch. 
The bright star has a proper motion of 0^165 in 
the direction of i65?5. This corresponds to the 
change in C shown by the measures. Knott's 
companion has the same proper motion as the prin- 
cipal star, and hence this is probably a physical 
pair. The measures show no relative motion. 

y Equulei and 6Equulei, about 5' distant, make 
2 54, App. I. 

[^ (i).../3(Afo«. AV. xxxHi, 3Si)...i3i.../3 (287S).../3 [Pub. 
L. O. II)...] 

The following relate principally to B and D : 

[Knott {Mem. R. A. S. XLill) {Mo7i. N'ot. xxvill, 47; 
XLVll, 11). . .A (11). . .A (1574). . .Engelmann (Mess. Neutizig 
Doppelsterne, l%6s) ■ . ■ Raddiffe Obs7ts. xxv...Hall (11)... 
Pritchett [Pub. Morriso7t Obsy. I). . .Tarrant (2899). . .Jedrze- 
jewicz (2343;. . .Maiebckato (Obsns. 1892). ..Aitken {A.J. 
429)...] 



P 251. O. Arg. S. 21 193 



R.A. 21^ 4" 53= 
Decl. — 31° S' 

o /; 

1877.70 233.6 2.71 7.0.. 

1879.69 234.4 .... 8.0. . 

1896.74 231.3 3.08 7.8.. 

Discovered with the 6-inch. 

[/3 (v) . . . (3 (Moil. Not. XXXV, 31) 
(3496)...] 



9.5 171 Cin 

9-5 i« ^ 

9.6 3;/ See 



Cin*. . . See 



Discovered from iSyi to i8gg by S. W. Burnham 



225 



P 159. Lalande 41 178 



R.A. 2i'> 6" 21= 
Decl. + 47° 12' 



A and B 



1876.69 318.4 

1882.68 300.0 

1889.53 316.7 

1898.56 316.6 



1-33 

1-34 
1.28 

1.22 



6.1 

7.1 
6.7 



9.2 



6n d 

I H Perry 

9.7 3« (3 

9.8 4« D 



A and C (= OS (App.) 215) 



1875.72 


189.6 


134-14 


... 6.9 


4« 


J 


1886.48 


189.5 


134.21 


... 7.4 


4« 


Fr 


1889.53 


189.4 


134.16 


--• 7-3 


2« 


/3 


1898.56 


189.5 


133-64 


... 7-0 


4;/ 


D 



The close pair was discovered with the 6-inch. 
There is a fairit star about 14" from AB in the 
direction of 147°. All the measures of OS (App.) 
215 are given above. If there is any proper mo- 
tion, it is evidently common to all the components. 

j8 (iv). . ./3 {Mon.Not. xxxiv, 382). . ./3 (2957). . .^{Pub. L. O. 
11)...^ (l)... Perry {Eng. Mech. xxxvi, 65)... Franz 
(3080). . .Doolittle {Pub. Flower Obsy. l). . .] 



P 270. Eqmilei ig 



R.A. 2i'> 7" 



Decl. + 6° L 
A and B 



1875 
1877 

1885 
1889 
1891 
1898 
i8q8 



82 
72 
61 

44 
60 

71 
73 



354-6 
347-4 
353-2 
350-0 
347-5 
344-9 
347-7 



0.62 
1.26 
0.67 

o.5± 
0.70 
0.61 
0.56 



7-4 
7-0 



7-0 
7-2 
7.0 



9-7 
9.0 



8-5 
S-5 
8.5 



2;/ 

2H 

2n 

3« 
i;/ 



J 

Sp 
A 



A and C 



1877.72 32.4 20zt 

1898.70 32.7 32.55 

1898.71 32.1 32.80 



,..13 Ml ;S 

. . 12.7 2« ;8 
. . 12.8 271 A 



A and D (= S 781) 



1824.99 


173-0 


183.24 


6>^. 


■ 7 


2n 


S 


1877.72 


172.6 


183.40 


7-0. 


■ 7-0 


\n 


/8 


1891.60 


172.6 


184.52 




• 7-0 


2)1 


y8 


1898.66 


172.8 


184.44 






y 


/8 


X898.66 


172.3 


184.40 




- 7-0 


m 


A 



The close pair was discovered with the 9.4-inch 
of the Dartmouth College Observatory. So far 
there is no material change. All the measures of 
South's pair are given. A and D are respectively 
Lalande 41 1 73 and 41 179. Each star was observed 
twice by Lalande. The mean differences of R.A. 
and Decl. give for the position-angle and distance 
at that time i72?9 : i84f86. 

1/3 (v). ..^ [Mon. Not. xxxv, 31). ../S'. . ./3 (3114). . .^ {Pub. 
L. O. II)... Sp (in)...HS ( )...Aitken (3585)...] 





p 


681. R 


iimker 9004 










R.A. 2ih 


7" 40=^ ( 
It" 26' s 










Decl. + 






1878.64 


2 39° 7 


2.51 


7.0.. .11.3 


3« 


/3 


1884.61 


232.9 


2.86 




2n 


H2 


1892.79 


234-3 


2-33 


7.0. . . Il.O 


m 


Ho 


1897.84 


240.6 


3.10 




m 


Br 


1898.57 


235-9 


2.89 


7.2 ... 1 1.2 


4« 


D 


1899.50 


238.2 


2.94 


7.1 ... 1 1.0 


2« 


/3 



Discovered with the 18^ -inch. Without change. 

[^ (x).../3'... Hough (3134)... HS ( )... Brown ( )... 
Doolittle {Pub. Flower Obsy. i). . . ] 



P 160. Lalande 41242 



R.A. 21"^ 7"" 48= 
Decl. + 45° 13' 



B and C 



1892.67 
1898.86 



116.7 
115. 2 



6.11 
6.41 



II. o . 

10.2 , 



.11.2 
. 10.7 



A and B 



1892.67 154.3 56.96 7.5. 
1898.86 154.2 57.47 7.3. 



m 
A" 



m 
A" 



W 
D 



W 

D 



Distant double companion noted with the 6-inch. 
Not likely to be of any special interest. 

[/3 (in)...|3 {Mon. Not. xxxiv, 59)... Wilson ( )... Doo- 
little {Pub. Flower Obsy. l). . .] 

P 682. Lalande 41222 





R.A. 21I' S"- 30' I 
Decl. -j- 4" 12' \ 


1877.77 
1885.66 


II 
105.6 5.64 7.5.. 

103.5 5-74 



1« 

2// 



H2 



226 



General Catalogue of Double Stars 



1891.63 103.3 5-63 7-7--I2.2 271 /? 

1898.53 100.7 5-67 7-4---II-5 6« D 

1899.44 102.2 5.28 7.0... 13.0 \n 13 

Discovered with the 18 )4 -inch. 

[/3 (x).../3'.../3 (3114)- --JS (/'«/'. L. O. II)... HS ( )... 
Doolittle {Pub. Flower Obsy. l). . .] 

P 1261. D.M. (15") 4384 

R.A. 21*' lo"" 295 ) 
Decl. + 15° 36' \ 

o // 

1886.76 151-5 1-39 8.5...11.0 2« Ho 

1891.85 148.9 1.72 8.5... 9.7 3« /3 

1895.88 150.6 ... ... i;/ Sp 

1897.84 148.2 1.57 ... zn K 

This pair was discovered with the 18^ -inch in 
September 1884, but was not included in the lists 
of new pairs of that time. 

[iS (xviii).../3 (3ii3)...i3 {Pub. L. (9. 11) .. .Hough (2978) 
. . . Sp (in) . . . Aitken {A. J. 429) . . . ] 

P 161. W XXI. ig7 



R.A. 21"^ 10"" 53^ 
Decl. — 4° 45' 

B and C 



891.64 316.8 7.10 10. 2. ..II. 5 2« /? 

898.71 318.5 7.40 ...ii.o \n /3 

A and B 

o // 

891.62 350.2 101.01 8.I...IO.O 2tl /3 

898.71 349.9 100.94 8.2... 9.0 in (3 
A and a 



>i-65 315-3 34-IO 
18.71 318.0 33.90 



i« /3 
\n /3 



a and b 



891.65 15.8 11.66 I3-5---I3-5 i« /3 
898.71 19.2 10.86 13. 5... 12.0 \ji (i 

The distant double companion was found with 
the 6-inch. The declination was erroneously given 
— 5° 45' in fi (ill). A and B are respectively 
S-D- (4°) 5404 and 5403, 8.3 and 9.3 m. 

[^ {ni) .. .^ {Mon. Not. \xx\\ , S9) ■■ -P (3ii4).../3 {Pub.L.O. 



P 162. D.M. (35°) 4461 



R.A. 21'' 12'" 14=^ 
Decl. + 35° 16' 



1875. II 240.5 1.05 8.0... 8.5 4« A 

1880.77 241.5 0.98 8.0... 8.0 \n ^ 

1883.91 67.0 1.28 8.1... 8.3 e^n En 

1891.63 243.5 1-09 8.5... 8.6 3« /3 

Discovered with the 6-inch. Probably fixed. A 
13m star in the direction of i38?5. 

[/3 (in).. ./3 (^o;/. AW. XXXI v, 59). . ./33.. .p (3114).. .(3 (Pub. 
L. O. II)... J {!)... A (2o86)...Engelmann (2678)...] 

P 163. Lalande 41386 



1876.09 

1878.60 

1884.31 

1887.79 

1891.52 

1892.91 

1895.46 

1895.69 246.9 

1898.76 253.2 



252-3 
256.9 

254-3 
251-3 
254.6 
248.1 
251.9 



R.A. 2li' 12" 
Decl. +11' 
// 

I-I5 

0.87 

1. 19 

0.68 

0-75 

0.57 

0.56 

0.63 
■ 0.63 



47' 
4' 

7-1 
7-0 

7 
7-2 



7-2 
7.0 



9.0 
9.0 

10 
9.8 



9.8 
9.6 



4« 
\n 
3« 
3;/ 

3« 
in 

Sn 

2« 

3« 



A 

02 
HS 
HI 

^ 

Sp 

Sp 

Lew 

A 



This star has a 
direction of i8o?o 



Discovered with the 6-inch 
proper motion of of 081 in the 
(Kustner). There is no relative change, but the 
components have the same proper motion. 

[/3 (ill). . ./3 [Mon.Not. xxxiv, 59) . . ./? (3114). . ./3 (/'«3. Z. C. 
II)... /I (l)...OS {Poulkowa 6>^.5;m. x).. .Hall (ll)...Sp 
(ill). . .Lewis {Moil. Not. lvi, 359) {Gi-eenwish Obsns. 
i89S)...Aitken(358s)...H2 ( )...] 





p 


27 


I. Lalande 41 


363 










R 


A. 2lh 


1 2™ 49= ) 












D 


scl. — 


26° 51' \ 














A and B 








1876.68 




226.6 




2.21 


7.2. . 


9-7 


i/i 


Cin 


1877.66 


233-3 




2.14 


7-5-- 


10. 


in 


Cin 


1879.68 


225-3 






6.0. . 


10. 


in 


Cin 


1879.69 


231.8 




2.30 


6.5-. 


9-5 


1)1 


Cin 


1886.78 


237-5 




2.77 


6.0. . 


9-0 


iti 


LM 


1891.54 


237-2 




2.70 


7.0. . 


10.4 


2n 


/3 


1897.24 


241.4 




3-19 


7.7.. 


10.7 


5« 


See 


1898.74 


239-5 




2.90 


6.8. . 


9.1 


An 


D 


1898.84 


236-3 




3-37 






m 


/8 



Discovered from iSji to i8gg by S. W. Burnham 



227 



A and C 

o // 

74-2 74-57 



12.0 \n /3 



Discovered with the 9.4-inch at the Dartmouth 
College Observatory. It is a most interesting 
binary from the large common proper motion of 
the components. The annual movement is 0^693 
in the direction of 245?3 (Porter). The relative 
motion is slow, so that the period must be a long 
one. The magnitude in Gould is 6.7. 

[/3(v). . ./3(M)«.yVo/. XXXV, 31). . .(3 (3114). . .^{Pub.L. O. 11) 
. . .Cin3. . .Cin". . .Cins. . .Cin^ . .LM. . .See (3496). . . 
Doolittle {Pub. Flower Obsy. i) . . . j 





p 


252. Lalande 41364 










R.A. 21'' 


12™ 58^ ) 
27° 49' \ 










Decl. — 






1877-54 


278^4 


// 
2-53 


8.2... 8.3 


5^' 


Cin 


1885.67 


Q6.3 


2-44 


8.0... 8.1 


2// 


W 


1888.65 


277.7 


2.65 


8.2. . . 8.2 


\n 


Lv 


1891.73 


279.2 


2.67 




Ml 


Col 


1896.89 


276.9 


2-59 


8.5--- 8.5 


211 


See 


1897.74 


276.8 


•2-55 


8i/(... 81^ 


2n 


Sc 



Discovered with the 6-inch. Unchanged. The 
measures in Cin^ and Lv' of this pair are errone- 
ously credited to another double in the vicinity, 
2™ 16'/ and 4' 47" ti. 

[/3 (v).../3 {Mon. Not. xxxv, 31) . . .Cin3. . .Cin<. . .CinS. . . 
Wilson (Cin'°). . .Lv'. . .Collins [Proc. Haverford Coll. 
Obsy. 1892). . .See (3496). . .'S>co\X{Mon.Not. Lix, 427). . .] 



P 289. 



W= XXI. 2^ 



1878.53 137.8 

1881.64 130.4 

1898.76 140.5 

1898.82 139.2 



1878.53 262.1 

1898.75 261.5 
1898.82 258.4 



R.A. 21^ 


13™ 22^^ 








Decl. + 


34° 25' 








A and B 








0.90 


8.2. 


. 10. 


i;/ 


^ 


0.67 


9 • 


. 1 1 


\ti 


Ho 


0.89 


8.3- 


. 9.0 


\n 


i3 


1. 00 


8.0.. 


.10.2 


y 


A 


A and C 








// 
5-39 




■13 


Ml 


/3 


6.28 




. 12 


in 


y8 


6.55 




.13.0 


211 


A 



Discovered with the 26-inch at the Naval Ob- 
servatory. In the field with v Cygni (OS 433), 24^ 
/and I .'7 II. 



f/3 (v). . ./3 {Mon. Not. xxxv, 31) 
Aitken (3S«5).--] 



.^■. . .Hough (2978). .. 



P II40. 



O. Arff. N. 22012 



R.A. 21'' 14"' 1= ] 
Decl. + 58' 6' S 



1889.58 


276.5 


3-89 


6.7. 


.12.3 


y> 


n 


1893.80 


274.1 


4.40 


. 


.13.0 


2fl 


Bar 


1898.31 


276.6 


3.86 


7.0. 


. 12.0 


211 


/? 



Discovered with the 36-inch. 



This star is sur- 
rounded by a faint nebula, about 12' in diameter, 
discovered by Barnard by means of photography 
{Moji. Not. LIX, 369). 



[/3 (XVI)... /3 (2956). 
447)...] 



,.(3 (Pub. L. O. n) 



Barnard {A. J. 



P 838. Lalande 41462 







R.A. 21" 


14™ 51 


•( 










Decl. + 


2° 37 






1881.66 




90-3 


;/ 
1.29 


7.6. 


-- 9-5 


V 


fi 


1884.65 


93-8 


1.84 






2n 


H2 


1886.84 


93-9 


1.69 






3« 


UL 


1887.77 


95-8 


1.71 


8.2 


.. 9-8 


y 


Com 


1891.85 


96.7 


1-34 


8.3 


.. 9.2 


V 


/3 


1893-59 


97-1 


1.48 


7-8 


. . 10.2 


3« 


\\' 


1894.57 


lOI.l 


1.82 






\)i 


Bar 


1894.87 


98.1 


1.22 






3« 


Sp 


1895.74 


101.3 


1.36 






\n 


Lew 


1896.66 


98.7 


1.66 


S.o 


• ■ 9-9 


y 


Lv 


1897.74 


93-8 


1-39 






y 


A 


1897.85 


100.9 


1-65 


8 


...11 


\>i 


Br 



Discovered with the 15 'j-inch at the Washburn 
Observatorv. 

[/3 (XII). . ./S-*. ../3 (3114). ../3 {Pub. L. O. n). ..Updegraff and 
Lamb {Pub. Washburn O^^jj'. v). . .Comslock (Sid. Mess. 
IX, 78) (Pub. Washburn Obsy. vi) . . .Wilson ( ). . .Bar- 
nard (A.J. 447). . .Sp (ill). . .Lewis (Mon. Nof. LVi, 359) 
(Greeinvkh Obsns. 1895). . .Lv (//./. 407). . .Aitken (A.J. 
429)... HS( )... Brown ( )...] 



228 



General Catalogue of Double Stars 





pi 


2f 


)2. Lalande 4 


483 










R 


A. 2l'> 


IS"" 40^ ) 












D 


eel. — 


15° 26' \ 








1878.02 




II3.8 




2.07 


8.0. . 


. 9.1 


yi 


Cin 


1886.72 


116. 




2.08 


8.0. . 


. 9.2 


2 71 


LM 


1891.85 


113-3 




1.79 


8.3.. 


. 9.0 


3" 


/? 


1897.72 


112. 3 




1.98 






3« 


A 



Discovered with the 6-inch in 1873. The double, 
H' N. 139, is undoubtedly identical with this pair. 
H' has no measures or description beyond giving it 
as Class I, and his place is some distance s/>, but 
there is no double star there, and he probably saw 
the pair given above. There seems to be no rela- 
tive motion. 

[/3 (xvi!i).../3 (3ii3).../3 (/'«/.. Z. O. II)... Cin3...Cint... 
Cms . . . LM . . . Aitken (<4. /. 429) . . . ] 

P 446. W= XXI. 344 



R.A. 21'' 15™ 44^^ 
Deal. + 32° 56' 



1876.80 261.7 

1893.65 265.4 

1898.22 255.1 



2.30 

2.96 
2.88 



9.0. 

8.5. 
8.4. 



12.5 



m /3 
3« W 



.13+ i« D 



Discovered with the 18^-inch. In the field with 
a 7 m star. 

[/3 (viil). . ./3 {Am. Jour. Set. July 1877). . .Wilson ( ). . . 
Doolittle (^Pub. Flower Obsy. I ) . . . ] 

P 839. D.M. (48°) 3348 
R.A. 21^ le™ 10^ ) 







Decl. + 


48° 50' 


\ 










A and B 








1881.47 




201.7 


15.18 


8.5. 


. 12.0 


V 


P 


1892.86 


200.8 


14-45 


8 . 


. 12 


\n 


Ho 


1898.69 


201.7 


15-03 


8.2. 


.11.5 


1)1 


a 






A and C 








1881.47 


i97°o 


// 
21.46 




■ 9-4 


3« 


p 


1887.85 


197.8 


21.43 


8.0. 


.. 9.8 


3« 


Com 


1892.86 


195-4 


21.20 




• 9 


\n 


Ho 


1898.69 


197. 1 


21.67 




.10.5 


m 


/8 



Discovered with the 15^-inch at the Washburn 
Observatory. Without change. 

[|3(xn). . .fi*. . .Comstock {Pub. Washburn Obsy.vi). . .Hough 
^.3234)--- I 



P 766. 6 ^ Microscopii 



R.A. 2ih 16"" 455 
Deel. — 41° 31 ' 



1879-73 


3I4-I 


0.83 


5 


. . 6 


211 


^ 


1886.71 


302.0 




6 


-- • 7 


in 


Pol 


1889.43 


307-1 


1.06 


5 


•■ 7 


m 


/3 


1894.76 


292.3 


0.63 


6 


-• 7 


2n 


Sel 


1896.81 


281.7 


0.94 


7 


.. 8 


3« 


See 


1896.81 


286.1 


0.86 






m 


Cg 


1897.79 


272.7 


0.98 






\n 


See 


1898.71 


293-4 


1.08 


5 - 


• - 7 


271 


A 



Discovered with the 6-inch at Mt. Hamilton in 
1879. Some change in the angle is very probable. 



[^ (xi). ..i3^. ./3 {2gS7)... 13 {Piib. L. (9. i,ii).. 
Sydney Obsy. 1891 ) {Mon. Not. xlvii, 473) . 
...See (3496)... Aitken (3585)- ••] 



. Pollock {Pub. 
.Sellors(3303) 



P 1035- 



5.A.C. 7422 



R.A. 21^ 17™ 16= 
Decl. — 26° 4' 



l»«8.74 19S.7 
1898.72 205.6 
1898.74 207.0 



■ 1-05 
1. 21 
1.09 



8.0. . .10.7 3« /3 
8.5 ... II. o \ti Cg 
8.0 . . . 10.3 3« A 



Discovered with the 12-inch. Apparently an- 
gular motion. 

[/3 (XIV). . ./3 (2875). . .(3 {Pub. L. O. II). . .Aitken (3585). . . 
Cogshall ( )...] 



P 272. Lalande 41564 







R.A. 2ih 


17™ 50= 












Decl. — 


13° 19' 








1876.16 


253-8 


4-52 


9-3- 


■ •II-3 


3« 


A 


1878.71 


256.0 


4-57 


8.2. 


. . 12.0 


2)1 


Cin 


1879.79 


255-7 


4-31 


8.0. 


. . 12.0 


171 


Cin 


1892.69 


258.5 


4-97 


8.5. 


..II. 7 


3« 


W 


1898.61 


256.8 


4.81 


8.9. 


.. 9.8 


4« 


D 



Discovered with the 6-inch. In the field with 
1 8 Aquarii. 

[j3 (v). ../3 {Mon. Not. xxxv, 31).. .A (i). ..CinS. . .Cin^.. 
Wilson ( ). . .Doolittle {Pub. Flower Obsy. l). . .] 



Discovered from iSyi to i8gg by S. W. Burnham 



22Q 



P 447. Vulpeculae 1 29 







R.A. ail" 


18 


^ 46= 


\ 










Dec). + 


24 


'48' 


\ 






1878.21 


330-4 


8.54 




6.5. 


■ -12.5 


2« 


/? 


1881.67 


331-1 


9.14 




6.0. 


- -12.5 


\n 


Ho 


1885.66 


329-9 


8.62 




. 


. . 


2n 


H2 


1892.80 


330-7 


9.41 




6.0. 


. . 12.0 


m 


Ho 


1898.63 


330-2 


8.74 




6.3. 


..13.0 


yi 


Bd 


1898.73 


328.3 


8.91 




6.2. 


..12.3 


3« 


A 



Discovered with the 18^ -inch, 
lande 41637. 



Fixed. La- 



[^ (lx).../3 {Mon. Not. XXXVIII, 78). . ./S" ... Hough {2978, 
3234)...Boothroyd( ) . . . Aitken (3585). . .HS ( )...] 



P 164. Lalande 41645 







R.A. 21'' 


igm 13S 






Decl. + 


8° 52' 






A ar 


d B 


1874.40 




244.8 


0.64 




1875.48 


241.6 


0.57 


8.0 


1877.72 


237-3 


0.82 


8.0 


1878.60 


62.6 


0-59 


7-5 


1886.69 


63.0 


0.78 




1886.78 


237.6 


0.68 


8.0 


1890.69 


240.2 


0.50 


7-6 


1891.79 


240.0 


0-57 


8.0 


1895.70 


244.4 


0-53 


7.6 


1896.73 


246.0 






1898.68 


238.0 


0.70 


7-5 





m 


New 


8-5 


3« 


J 


8.5 


m 


/8 


8.0 


m 


0% 




6n 


HS 


8.1 


2Jl 


LM 


7.8 


in 


/3 


8-5 


4;z 


T 


7.6 


3« 


Cole 




\7l 


Cole 


7-5 


3« 


A 



1828.80 


242.2 


26.51 


1842.89 


241.5 




1865.14 


241.2 


26.62 


1878.60 


242.5 


26.40 


1890.69 


241-5 


26.99 


1892.81 


243.0 


26.66 


1895.70 


240.8 


26.86 


1898.68 


241.8 


26.69 



AB and C (= S 2793) 
7.0 

6.8 



6-5 



8.7 


in 


2 




i/i 


Ma 


9.0 


i'i 


J 


8.7 


m 


OS 


8-7 


3« 


|8 


8.2 


2n 


GI 




5" 


Cole 


8-5 


3« 


A 



The principal star of the wide pair, S 2793, was 
found to be a close pair with the 6-inch. The 
change, if any, is very slow. The distant star is 
fixed. All the measures of C are given. 

[13 (ill). . ./3 {MoH. Not. XXXI v, 59). . ./3'. . .(3(3048). . .|3 {Puh. 
L. O. 11). . .Newcomb {VVash. Obsns. 1874)... J (". P- 



SII)...4 (2086). ..LM. . .OS {Poulkowa Obsns. XJ... 
Tarrant (3186)... HS ( )... Aitken (3585J. . .Glase- 
napp (11) . . . Madler (Fixstern-Systeme I ) . . . Coleman 
{Mem. R. A. S. LUl). . .] 



P 767. Lacaille'SSoQ 







R 


A. 21'' 


19 


- 19M 










Decl. — 


43 


^^ ^'\ 






1879.70 




146. 1 




II 
3-40 




6.0 . . . 9.0 


211 


13 


1887.43 


143-9 




3-22 




6 ... 8 


An 


Pol 


1890.94 


142.6 




2-73 




6 ... 8 


5« 


Sel 


1898.66 


144.1 




3.18 




6.0. . . 10. 


3« 


A 


1898.72 


145.6 




3-07 




6.5.. .11.5 


211 


Cg 



Discovered with the 6-inch at Mt. Hamilton in 
1879. ^^ Cord. G. C. 6 m {Mic7-oscopiii7n). 

[/3 (xi). . ./3^ . .Pollock {Pub. Sydney Obsy. 1891) {Mon. Not, 
XLvii, 473) {Mem. R. A. S. l)... Sellers (3154). ..Aitken 
(3S8s)-.-Cogshall( )...] 



P 683. Lalande 41683 



R.A. 2\^ 20™ 43^ \ 
Decl. — 20° 44 ' ) 



1877.53 198.4 

1879.79 197.3 

1882.71 193.1 

1892.79 193.2 

1898.69 194.6 

1898.71 195.1 



2.04 

2-5± 

1± 
2.89 

2.67 
3.01 



8.5 
8.5 

7.0 
8.0 

8.2 

8.0 



. . I 1.0 
. . 12.0 

. . 10. 

. . I I.O 
. . 12.0 

. .10.8 



\n 
\n 
i;/ 
I// 

2)1 
V! 



13 
Cin 

^^" 

Ho 

Bd 

A 



Discovered with the 18^-inch. While the rela- 
tive change is small, the components have a com- 
mon proper motion of o."'i25 in the direction 
of 154? 7 (Porter), and therefore form a phvsical 
system. 

L^ (x)... (3-... Cin«... Wilson (Cin '^) ... Hough (3234)... 
Boothroyd ( ) . . . Aitken (3585) . . . ] 



P II41. O. Arg. N. 22270 



R.A. 21^ 22" 6^ I 






Decl. -f 57° 43' \ 






2.72 7.7. ..13.2 


3« 


/? 


3.13 7. 5... 13. 8 


3" 


A 



I8S9.58 165.9 

1S98.68 171. 9 

Discovered with the 36-inch. 
[|3 (XVI)... |3 (2956)... /3(/'«<^.Z. O. ii)...Ailken (35^5)- ■•) 



2^0 



General Catalogue of Double Stars 



P 369. Radcliffe 5237 



R.A. 2ih 22™ 31=^ 
Decl. +5^° 14' 



55-55 
(1. 50 



33-4 
31-9 



16.03 
16.26 



7-3 ■ 



11-3 



in HS 

V- /3 



Discovered with the 6-inch. The 36-inch shows 
a third star 14 m, a little farther from A than this, 
in the direction of 330°. 
[(3 (vi).../3 (2o62,3ii4).../3(/'«^. Z. au)...HS ( )...J 

P 72. W=XXI. 511 



R.A. 21'' 23'" 43* 
Decl. — 5° 55' 



9.0 

8.0 

8.4 

8.3 
9.0 



Discovered with the 6-incb. ^ Aquarii is 1 1 ' //, 
and /8 684 in the field. 

[/3 (l)...|8 (Afo«. Not. XXXIII, 351).. .i3'.../3 (3048).../3(iP«/;. 
Z. O. II)... J (l)... Cin 5. .. Li\l... Tarrant (3186)... 
Aitken {A.J. 429). . .] 



1877.06 


45-2 


1.82 


1878.17 


43-1 


1.90 


1878.75 


37-0 


1.74 


1886.68 


38.0 


2.00 


1890.68 


42.2 


1.84 


1890.77 


44.1 


1.94 


1897.74 


37-6 


1.89 



1 1.2 


VI 


J 




2fl 


/8 


I I.O 


2« 


Cin 


1 1. 1 


4« 


LM 


8.9 


y 


/8 


II-5 


2)1 


T 




VI 


A 





P 


684. W 


' XXI. 


517 










R.A. 2ii' 2 


3'" 53^ 


i 










Decl. — 


5° 57' 


\ 






1878.62 




133-9 


II 
I.I I 


9.0. 


.. 9.2 


I// 


iS 


1886.78 


126. 1 


1. 16 


9.4. 


. . 9.8 


2n 


LM 


1890.68 


126.7 


1. 12 


8.7. 


. . 8.9 


3" 


/^ 


1897-75 


124.8 


1. 16 






3« 


A 



Discovered with the 18^ -inch. In the field 
with (8 72. Angular motion is probable. 
[/3 (x).../3'.../3 (3048)... i3 {Fui. L. O. v\) . . .Aitken {A. J. 
429). .. I 



1878.05 334.1 
1893.68 332.4 
1899.72 332.3 



685. 


2 


Pegasi 






.A. 2l'> 


24 


n, 31S 1 






)ecl. + 


23 


^.^ 






II 
29.82 




5-5-- -12. 5' 


2« 


n 


29.58 




5.0. . . 12.8 


Ml 


w 


30.28 




. .. 13.0 


y 


D 



Discovered with the i8i^-inch. The principal 
star has a proper motion of o!'oi5 in the direction 

of 82?5 (AUWERS). 



[H ix) ...13^ . 
Ohsy. I). . .; 



Wilson ( ) . . . Doolittle (Pub. Flower 



P 448. D.M. (44°) 3832 

R.A. 2t'> 24™ 36^ ] 
Decl. -\- 44° 24' i 

A double star, supposed to be in this place, 
was found with the iS^-inch October 1876, and 
the distance estimated 2", and the magnitudes 7 
and II. I could not see this star double with the 
i8}^-inch in 1879, ^or ^^'th the 36-inch in 1891. 
H2 found it single in 1885. There is no obvious 
error in the original entry, nor any doubt noted as 
to the existence of the companion. The magni- 
tude of this star is 6.4 in A.G.C. 

[/3 (\x)...p(Moii. Not. XXXVIII, 78).../33...HS ( )...] 



P II42. D.M. (56°) 2579 



R.A. 2i'i 25™ 7' ) 








Decl. +56° 39' \ 








II 
0.41 8.7 . . 


. 8.7 


3« 


^ 


0.44 9.3.. 


• 9-3 


3« 


A 



1889.59 353-9 
1898.80 356.6 



Discovered with the 36-inch. 

[/3 (XVI)... (3 (2956).. ./3 {Pui. L. O. II)... Aitken (3585)...] 



P 73. p Aqiiarii 



K.A. 21'' 25'" 14'. 
Decl. ~ 6° 6' 







A an 


d C 








1879-57 


184.9 


// 
54-51 




-- -II-5 


y 


/? 


1893.82 


185.0 


54-95 




- - -1 1-5 


3« 


W 


1898.63 


184.6 


55-97 




. . . 1 1.2 


in 


Cg 


1898.90 


185.4 


55-73 
A and B ( 


= H 


. . . 12.0 
936) 


\n 


y8 


1828 


32 2!8 


// 

20± 


3 


.. .15 


\n 


H 


1879.34 


318.9 


34.26 




. . . 10.9 


211 


i3 


1893.82 


318.5 


34-92 




... 1 1.0 


3« 


W 


1898.63 


318.4 


34-96 




. . . 10.5 


V 


Cg 


1898.90 


319-1 


34-72 




. . . 1 1.0 


\n 


^ 



Discovered from iSyi to i8gg by S- W. Burnham 



231 



The faint companion was noted with the 6-inch. 
All the measures of the Herschel star are given. 
These stars are not likely to have any connection 
with the large star. The proper motion is very 
small, o!'oo9 in the direction of 263?6. 



[(3 (i). . ./3 [Mon. Not. xxxill, 351) 
...Cogshall( )...] 



./3'.. .|33. ..Wilson ( 



P 165. Lalande 41954 







R.A. 21^ 


27" 55" 












Decl. — 


3° 59' 








1876.10 




176.6 


4-77 


8.7. 


. 10.8 


y> 


A 


1879.29 


176.7 


4.82 


8.0. 


.10.5 


211 


Cin 


1888.82 


176.5 


5-04 


8.3. 


. 10.8 


m 


Lv 


1890.77 


179-3 


4.96 






m 


Byers 


1890.77 


174.3 


4.42 


8.7. 


. 1 1.O 


2n 


T 


1898.51 


176.5 


5.08 


8.6. 


. 9-8 


4,n 


D 



Discovered with the 6- inch. Probably fixed. 

[)3 (in)... (3 {Mon. Not. xxxiv, 59). ../I (i). ..Cins.. .Cin''.. . 
Lv'... Byers [Froc. Haverford Coll. Obsy. 1 891)... Tar- 
rant (3186). . .Doolittle {Pub. Flower Obsy. l). . .] 



P 370- O. Arg. N. 22429 



R.A. 2ih 28"" 15=^ 
Decl. + 52° 13' 



1876.77 


326.5 


3-46 


8.5.- 


. 9.0 


4« 


J 


1880.82 


325-5 


3-59 






in 


Pt 


1892.77 


328.0 


3-69 


8.5 •■ 


• 9-4 


AH 


W 


1898.60 


326.7 


3-68 


8.7.. 


. 9.0 


A" 


D 



Discovered with the 6-inch. Rogers gives the 
proper motion, o!'o45 in 90°. 

[/3 (vi). . .(3 (2062). . .A (i). . .Pntchett (Fub. Morrison Obsy. 
I) . . . Wilson ( ) . . . Doolittle {Fub. Flower Obsy. 1) . . . ] 



P 273. W- XXI. 646 

R.A. 2i'> 28"^ 33= I 
Decl. + 10° 55' \ 



1875.84 


93-1 


5-77 


8.1 . 


. 12.0 


4;/ 


J 


1879.97 


92.4 


5-54 


8.0. 


.11.5 


3« 


|8 


1898.50 


90.9 


6.13 


8.7. 


. 10.5 


3" 


D 


1898.84 


92.9 


5-73 


8.0. 


.10.5 


i/t 


/S 



Discovered with the 9.4-inch at the Dartmouth 
College Observatory. Unchanged. 



\P (v). . ./3 {Mon. Not. xxxv, 31). . ./3' 
little {Fub. Flower Obsy. l) . . .] 



P...A (i)...Uoo 



1-54 


7.0. 


. 9.0 


in 


OS 


1-43 


7.1. 


. 9.0 


S" 


J 


1.6 


6.5. 


. 10 


in 


Perry 


1.62 






3« 


H2 


1.32 


7-3- 


. 8.9 


3« 


Lv 



P 74- Lalande 42052 

R.A._2i'^ 29" 40^= \ 
Decl. + 20' 52' f 

o " 

1874.67 321.4 
1876.09 319.5 

1882.68 325.0 
1884.38 321.7 
1893-53 319-9 

Discovered with the 6-inch. No relative motion. 

[/3 (i). . .j3 {Mon. Not. xxxui, 351). . .OS {Foulkowa Obsns. x) 
...A (i)... Perry {Eng. Mech. xxxvi, 65)... Lv {A.J. 
382)... HS( ■)...] 



P l66. O. Arg. N. 22487 



1875.54 259.3 

1885.52 254.1 

1893.77 256.6 

1898.57 256.9 

Discovered with the 6-inch. 

[/3 {\\l\...^{Mon.Not. XXXIV, 59)... il (l)... Wilson ( 
HS ( ) . . . Doolittle {Fub. Flower Obsy. l) . . . ] 



R.A. 2i'> 


30"" 17^ \ 








Decl. + 


59 


°48' \ 








1. 16 




7.4.. 


. 10.2 


4" 


J 


I-31 






. 


2)1 


H2 


1.44 




7.8.. 


. I I.O 


2n 


A\' 


1.46 




8.7.. 


.10.5 


y 


D 



p 167. Cygni 363 

R.A. 2ih 3i"> 0^ I 
Decl. -f- 29° 31' S 



1876.48 


89.2 


2.08 


7.0. 


. II. 4 


V 


J 


1881.73 


88.0 


1-97 


7.0. 


. 1 1.0 


3" 


Ho 


1882.68 


91.0 


2.17 






in 


Perry 


1885.66 


92.2 


2.33 






2n 


112 


1893.66 


88.9 


2.19 


6.5- 


. 10.8 


2n 


W 



Discovered with the 6-inch. Without change. 
Piazzi XXI. 215. 

[(3 {iii).../3 {Mon. Not. xxxiv, 50) 1 (l)... Perry [Etig. 

Mech. xxxvi,65). . . Houijh (2978). . .Wilson ( ). . .112 
( )...] 



General Catalogue of Doiible Stars 



(3 371- O. Arg. N. 22566 



R.A. 2\^ 32"" 58= 
Decl. + 58° 10' 



1876.58 
1892.82 
1898.19 



4.0 

4-3 
3.2 



8.39 
8.33 
8.78 



8.2. 

8.5. 
8.2. 



10.7 
1 1.2 
10. 1 



Discovered with the 6-inch. 



[(S (VI)... (2062)... J (i) ., 
{Pub. Flower Obsy. l). . .] 



.Wilson 



P I2I2. 24 Aquarii 



R.A. 21'' 33" 20= 
Decl. — 0° 36' 



1890.75 
1891.75 
1892.40 
1893.68 
1893.88 
1894.82 
1894.86 
1897.81 
1897.89 
1898.78 
1898.84 



254-5 
261.0 
256.2 
260.5 
262.8 
264.7 
261.5 

263-5 
267.4 
269.0 
269.0 



A and B 

0.45 6.; 



0-55 
0.38 

0-55 
0-59 
0.52 

0.45 
0.65 

0-73 
0.49 

0.54 



6.- 



7-1 



6.5 



6.9 



7-5 



1891.76 141. o 

1893.83 141.2 
1897.89 143.4 

1898.84 142.7 



AB and C 

44.46 
43-92 
43-13 
43-33 



6.6 



. 10.9 
.11.5 

• 9-9 



3« 
3« 
4« 



A 

W 

D 



). . . Doolittle 



VI 


/3 


4« 


/3 


2« 


Sp 


v 


w 


\n 


Bar 


-111 


Bar 


yi 


Sp 


i'l 


A 


m 


Br 


V 


A 


i/i 


^ 



2;/ 

2/1 

in 
2/1 



\V 
Br 
y8 



Discovered with the 36-inch. It was evident at 
the time of discovery that the close pair was a 
binary from the common proper motion of the 
components, as otherwise the duplicity would have 
been seen long ago. This proper motion is given 
by AuwERS as 0^2 15 in the direction of 82? 5. 
This corresponds, as might be expected, to the 
change in the distant star C. The motion of AB 
is slow so far, but it is probable that the compo- 
nents have about the maximum separation at this 
time, and that hereafter the angular motion will be 
more rapid. 

[/3 (xvn).../3 (3047,31 14)... /3{/'«^.Z. O. II)... Wilson ( ) 
...Sp (ill). . .Barnard (^. /. 447). . . Aitken (^. /. 429) 
.. .Aitken (3585). . .Brown ( )...] 



P 686. Radcliffe 5329 



1877 
1877 



1893 







R.A. 2lh 


33" 43= 1 












Decl. + 


55° 13' \ 












A and B 













// 










■58 


II7-5 


0.4 






i« 


(3 


.70 


127.9 


0.48 


7.7.. 


. 8.0 


m 


J 


•52 


296.5 


0.80 






\n 


HS 


-57 


303-7 


0.87 


8.5. 


. I I.O 


in 


W 


.70 


289.9 


0.87 


8.0. . 


.13.0 


1)1 


A 



1875.96 


II. 


41.22 


1878.65 


1 1.0 


41.67 


1883.23 


10.9 


41-53 


1893-57 


10.9 


41.05 



AB and C (= OS App. 220) 

O // 

8.3. 



8.3 


3« 


J 




i« 


^ 


8.0 


4« 


Fr 


9-5 


in 


W 



The duplicity of the principal star of this wide 
pair was discovered with the 18 3^ -inch. It is a 
difficult pair, and likely to prove an interesting 
one. The estimated magnitudes of B are very dis- 
cordant. The foregoing are all the measures of C. 
This star is Radcliffe 5330. 



[/3(x).../3-...zl (i)... Wilson ( 
( )...HS( )...] 



.Franz (2649). . . Artken 



P 449. Radcliffe 5335 



R.A. 21'' 34" 42= 
Decl. +41° II ' 



A and B 



1876.80 19. 1 
1891.51 15.6 
1898.69 14.5 



6.78 
6.09 
6.13 



7.1 .. . 12.7 



in /3 

3« /3 
2« Hu 



A and D 



1876.80 248.2 17.94 
1889.94 239.6 15.70 
1891.51 247.2 17.45 



in /3 
.13 i« Ho 

1 2. 1 271 /8 



A and C (=H' III. no = OS 447) 



I783-8I 


157-6 


13.90 






in 


H' 


1848.30 


169.4 


13.96 


7.0. 


.11.1 


4« 


OS 


1866.58 


170-5 


13.69 


7.0. 


. . 10.8 


3'^ 


J 


1889.94 


170.5 


13.81 




. 1 1.0 


in 


Ho 


1891.51 


I 72.2 


13.61 




. 1 1.0 


2n 


/8 


1894.66 


171. 2 


13.68 


7.1. 


.10.8 


2n 


Gl 



Discovered from iSji to i8gg by S. W. Burnham 







A and E 


1783.81 




49.4 


25 97 


1848.30 


45-3 


29.00 


1866.58 


45-7 


29.12 


1889.94 


45-1 


28.85 


I89I.5I 


44.6 


28.95 


1894.66 


44.9 


28.92 





m 


H' 


9 


Aft 


OS 


7 


3« 


J 





in 


Ho 


2 


3« 


/8 


9 


2« 


Gl 



The two small stars, B and D, were noted with 
the 1 8^ -inch. The brighter stars, ACE, make 
H' III. no = 02 447. They are relatively fixed. 
All the measures are given. 

[(3(vill)...j3 (Am.Jour.Sd.]\x\y 1877). .. (3 (31 14) . . .p (Pub. 
L. O.n)... Hough ( 2978) . . . Hussey ( ) ... OS (Poul- 
kowa Obsns. ix) . . . zl (l) . . . Glasenapp (ill) . . . ] 





p 


687. Radcliffe 5340 










R.A. 2ih 


34 


" 53^ I 
° IS' S 










Deci. + 


55 






1878.65 




8.4 


// 
0.89 




8.0 .. . 9.0 


\n 


^ 


1885.55 


4.4 


0.66 






3« 


HS 


1890.74 


4.9 


0.64 






611 


Sp 


1893.70 


1.8 


0.76 




7.2. . . 9.0 


2/1 


W 


1898.65 


2-5 


0.83 




7-7-- • 9-3 


4// 


A 



Discovered with the 18^-inch. My first angle 
was printed i88?4. An examination of the 
original record shows that it should have been as 
given here. 



[§ (x)...^'...Sp (m) 
HS( )...] 



.Wilson ( 



.Aitken (3585)- 



P II43. Piazzi XXI. 248 



R.A. 21'' 35"" 14^ 
Decl. +56" 57' 







A and B 








1889.62 




323-5 


1.55 6.0. 


■13-7 


yi 


/3 


1898.75 


325.0 


1.73 6.3.. 


. 14.0 


211 


A 



A and C (= S 2816) 



1832.94 


120. 1 


11.66 


6.3.. 


. 7-9 


5« 


2 


1866.65 


121. 2 


11.77 


5-8-. 


■ 7-5 


3« 


J 


1889.61 


120.4 


11.86 


. . 


• 7-3 


V> 


/? 


1898.87 


120.7 


1 1.60 






III 


A 



1832.94 339-7 

1866.65 339-8 

1889.61 339.5 

1898.87 339.4 



A and D (= 2 2816) 

;/ 

19. 96 . . . 8.0 ^n 2 

19.81 ... 7.5 3« J 

19.94 ■ ... 7.3 yi /3 

20.15 • • • i« A 



The close companion to the principal star of the 
wide triple 2 2816 (= H' iii. 71 = S 795) was 
discovered with the 36-inch. It is probably too 
difficult for any of the instruments with which the 
other stars have been observed. The old com- 
ponents appear to be relatively fixed. Auwers 
gives the proper motion of the principal star o .'0167 
in the direction of i53?9. This should increase 
the distance of D about i " in the interval covered 
by the measures. The measures indicate a common 
movement in space. This is a naked-eye star in 
Cepheiis ( = B.A.C. 7545). The Harvard photo- 
metric magnitude is 5.5. 
[/3 (xvi).../3(2956).../3(/'«^. Z. O. 11)... Aitken (3585)...] 

There are other measures of the bright stars : 

[Madler [Fixstern-Systeme l) {Dorpat Obs?is. l.x, xr, xni) 
. . . Wrottesley {Phil. Trans. \%^\) .. .Radcliffe Obsns. xxil 
...A (lI25)...J (l, p. 118, n). . .Herschel (Meju. R.A. S. 
iv) . . .Nobile [Rend. Accad. Sci. Napoli, Jan. 1875) . . . Gledhill, 
Wilson and Seabroke {Mem. R. A. S. XLii) .. .Glasenapp 

(HI)...] 

P 372. D.M. (50°) 3403 

R.A. 21I' 35" 48^ \ 
Decl. +51° I' S 

O II 

1876.93 352.7 1.89 8.5... 10. 6 4^/ J 

1892.69 357.2 1.83 8.5...II.O 2« W 

Discovered with the 6-inch. Near tt Cygfii, 2'"^ 
and 22 ' //. 
[/3[vi).../3 {2062)... J (I)... Wilson ( )...] 

P 274. \V= XXI. 881 

R.A. 2i'' 36"' 26^ I 
Decl. +38° 56' \ 



1875-93 


180.7 


3-45 


7.8.. 


. 10.9 


1" 


J 


1880.83 


182.4 


3-54 






\)i 


Ft 


1892.95 


181. 7 


3-99 


S.o. . 


.10.5 


Ml 


W 


1898.52 


177-4 


3-59 


7.8.. 


. 9.0 


211 


D 



Discovered with the 9.4-inch at the Dartmouth 
College Observatory. 
[/3 (v).../3 {A/on. jVof. XXXV, 31) I (i)...rritchett {Pub. 

Morrisoit Obsy. i )... Wilson ( ) . . . Doolitlle {Pub. 

Flower Obsy. l). . . | 



234 



General Catalogue of Double Stars 



P 373. 

R.A. ai"^ 37™ i^ / 
Decl. + 48° 47' \ 



1876.58 


I 7 1.0 


4.12 


10. 1 . 


. 12.0 


3" 


J 


1893.76 


i7i-i 


4.68 


10. . 


.11.8 


y 


vv 


1898.54 


170.6 


4.42 


9.8. 


.11.8 


2/1 


D 



Discovered with the 6-inch 
wide pair. 

i[i3 (VI)... /3 (2062)... A (I)... Wilson ( 
{Pub. Flower Ohsy. l) . . . ] 



The south star of a 
). . . Doolitile 



P 688. Radcliffe 5364 

R.A. 2i'> 37™ 43= I 
Decl. -j- 40° 30' \ 



1878.36 


208.7 


0-35 


7.6.. 


. 7-6 


5" 


/? 


1884.95 


201.4 


0.38 






VI 


H2 


1887.70 


207.1 


o.3± 


8.0. . 


. 8.0 


1>! 


Ho 


1890.13 


202.6 


o.4± 






4ti 


Sp 


1891.94 


204.5 


o.4± 






3« 


Sp 


1898.74 


200.8 


0.52 


7.7. . 


■ 7-7 


3« 


A 



Discovered with the 18^2 -inch. There may be 
slow motion in angle. This star is a short distance 

V77 Qg»i- 

Ii3 (x)...)3'... Hough (2978)... Sp (lIl)...Aitken (3585)- ■■ 
I...] 



HS 



P 1263. Lalande 42381 

R.A. 21'' 38"" 40^ [ 
Decl. + 2° 17' I 



8.5 .. . 10.2 
8.0 . . . 10. o 



m [i 
is 3^ / and 



1891.60 212.6 0.48 

1898.68 220.3 0.45 

Discovered with the 36-inch. /? 
9 .'6 ;/. 

,[^ (xvni)...j3(3ii3).../3 [Pub. L. O. n)...Aitken { 

p 689. Aqiiarii 88 



R.A. 2i'' 38"' 43' 
Decl. + 2° 26' 



1878.37 240.5 1.80 7.5. 

1885.69 237.2 1.68 

1891.60 241.6 1. 71 7.3. 

1898.68 240.8 2.56 7.0. 

Discovered with the 183^-inch. Lalande 42384. 
f/3(x)...i3'...^(3ii4).../3(/'«^. Z. O. ii)...Aitken( ). . . 
HS( )...] 



0.7 


VI 


^ 




2n 


H2 


1.4 


5« 


/8 


0.0 


171 


A 



P 374- O. Arg. N. 22750 



R.A. 21I1 38'" 59= 
Decl. + 50° 27 ' 



1877.03 143.3 1-86 8. 4... 10. 3 5« J 

1893.54 141. 3 1.86 8. 3... 10. 5 3« Lv 

Discovered with the 6 inch. It is 70' /tt' Cygni, 
and 11';/. 

[|3 (vi).../3(2o62)...Zl (i)...Lv(^./. 382)...] 



P 989. K Pegasi 







R.A. 2i'> 39"' 13=^ 






Decl. -1-25° 6' 






A and B 


1880.68 


137-9 


o.2rt 4.8. 


1883.02 


116. 


0.16 


1884.01 


140.0 


0.25 


1884.87 


104.7 


0.22 


1887.82 


286.8 


0.25 + 


1888.78 


274-7 


0.23 


1888.89 


298.9 


0.25± 


1889.51 


262.3 


0.14 4.3. 


1890.57 


187.1 


0.10 


1890.93 


136.4 




I89I.6I 


150.0 


O.IO 


I89I.8I 


144.6 


0.13 


1891.93 


159.0 


0.20± 


1892.39 


132.8 


0.18 


1892.88 


131. 


0.20 


1892.97 


135-1 


0.20± 


1893-51 


121. 


0.29 4.0. 


1893.76 


127.5 


0.20 


1893.82 


130-5 


0.25± 


1893-93 


123.6 


o.27± 


1894.50 


117. 6 


0.19 


1894.84 


114.8 


0.14 


1894.88 


114. 7 


o.25± 


1895.60 


107.8 


0.18 


1895.72 


104.3 


O.IO 


1895.74 


104.6 


0.12 3.5. 


1895-73 


103.0 




1895.79 


1X2. 7 


0.15 + 


1895.91 


108.1 


o.20±: 


1896.64 


80.9 


0.09 


1896.68 


93-7 


0.09 


1897-57 


27.0 


0.09 


1897.76 


16.6 




1897.80 


4.8 





5-3 



5-0 



4.1 



9.0 



4« 


/8 


\n 


En 


\n 


En 


\n 


/3 


\n 


Sp 


VI 


/? 


3« 


Sp 


4>i 


/8 


4« 


/8 


i« 


Sp 


V 


^ 


4« 


^ 


yi 


Sp 


4« 


/8 


in 


Bar 


4« 


Sp 


3« 


Lv 


2« 


Bar 


lit 


Com 


8« 


Sp 


5« 


Bar 


4« 


Lew 


6« 


Sp 


6« 


Bar 


211 


Dyson 


VI 


Lew 


m 


Christie 


4« 


Com 


A" 


Sp 


6n 


Lew 


3« 


A 


4« 


Lew 


in 


Lew 


\n 


Dyson 



Discovered from ^Sji to i8gg by S. W. Burnham 



235 



897 
898 



899 



go 
66 



47 



342.0 

294.5 0.16 5-7- ■ • 5-7 

304.6 o.io 
300.0 0.28 

289.7 0.35 
288.9 0.27 
284.0 0.19 

AB and C (= S 2824) 



1828 306 

1831.56 308 

1844.89 307 

1848.00 306 

1850.99 306 

1857.45 305 

1860.82 302 

1862.45 304 



1 1. 01 
11.48 
1 1.20 
I 1.60 
11.86 
9.82 
"•93 



4.2 
3-9 



J 0.7 
10.8 



\n 


Lew 


S" 


A 


2n 


Bar 


5» 


Lew 


2/1 


Bow 


4« 


Lew 


4« 


A 



10.3 



2« 
2 71 

3« 
4// 
\n 
\n 



2 

Ma 

Ma 

Ma 

Ma 

Ma 

Kn 



1862 


77 


309.2 


12.12 


1864 


87 


303-9 


1 1.56 


1866 


61 


2>'^^-Z 


12.03 


1872 


62 


301.7 


II. 7 


1874 


80 


302.5 


12. 1 


1875 


89 


303-3 




1880 


60 


303-1 


11.76 


I88I 


37 


302.3 


12.47 


1888 


81 


300.0 


12.13 


1888 


82 


300.7 


12.22 


1888 


92 


300.8 


"■95 


1 89 1 


96 


298.9 


12.10 


1892 


81 


297.7 


12.09 


1893 


66 


297-5 


11.86 


1895 


25 


298.8 


12.21 


1895 


60 


30 1. 1 


12.28 


1898 


43 


299.6 


12.43 


1898 


71 


298.8 


12.45 



4-3 



3-9 





\ii 


Ma 


!0.5 


6« 


J 




i;/ 


Hd 


'3 


\>i 


WS 


'3 


\7l 


Gled 


]0 


\7l 


WS 


9.1 


4« 


^ 




2 71 


Sk 


'3 


y> 


HI 




2)1 


(i 




271 


Sp 




in 


Big 




2 71 


Maw 


I I.I 


2U 


Gl 




4« 


Lew 




8« 


Bar 




\n 


A 




yi 


Lew 



1SS8© 







av 


180° 
\ 1890 • 




1891^,.--^ 


1880* 








• 1893 ^^^ 


) ^. 




1889^/ 




^\ 


C, 




;^ 


'''^^^/1884 




970° 


y^ • 




\^^\ 






^^^-^ 




90° 



00 

I I I I L. 



_l I I I i I I \ I — L 



Scale. 



Orbit ofK Pegasi.yS989. 



The close pair was discovered with the 18^- 
inch. It is not only a most important physical sys- 
tem, but has ajperiod'shorter than any other known 



binary in the heavens. It has been followed with 
the micrometer through more than one and a half 
revolutions. It is at all times a close pair, the 



236 



General Catalogue of Doitble Stars 




&o^ 



Scale 

K Pegasi. /3 989. (Fig. 2.) 



1890 


Burnham 


1 1. 13 years 


1892 


Glasenapp 


"•54 " 


1893 


Burnham 


11.37 " 


1895 


See 


11.42 " 



maximum distance being but little more than o!'2 ; 
but as the components are of nearly the same mag- 
nitude, the elongation can be seen with a moderate 
aperture. Several orbits have been found which 
differ but little so far as the period is concerned. 
The several results, with the respective dates of the 
last measures used, are as follows : 

I^ud. L. O. II. 128 
Mo)i. Not. LI I. 

548 
Pub. L. O. II. 252 
Etwlution of Bi- 
nai-y System, I 

My orbit of 1893 is shown in the accompanying 
diagram, reproduced from Popular Astronomy for 
April 1894. 

Future investigations probably will not materially 
change the period, but may improve some of the 
other elements of the orbit. The principal positions 
to 1899.5 ^re shown in Fig. 2 with the same ellipse 
given in the other diagram. This apparent orbit 
appears so far to satisfy the recent measures. 

As a wide pair this was discovered by Herschel 
I. in 1786. He made no measures, but described 
it as "extremely unequal, the small star almost 
north, but a little preceding." It was not meas- 
ured until 1 83 1, when Struve observed it, and 
incorporated it in his great catalogue as 2 2824. 
AuwERS gives the proper motion of k Pegasi o". 021 
in the direction of 6o?2. The chans^e in the distant 



star is apparently due to rectilinear motion, but it 
does not correspond very closely to the proper 
motion referred to. A comparison of Struve's 
position with a mean of the three sets of measures in 
1888, gives for the annual movement of the large 
star of 034 in the direction of 68°. The discrep- 
ancy may be accounted for in three ways : the small 
star may be physically connected with the other, 
and the change due to orbital motion ; or the small 
star may have some proper motion of its own ; or 
the value of the proper motion of the principal 
star as found from meridian observations may have 
a small error. It is perhaps impossible at this 
time to say which of the explanations is the most 
probable. 

L^ (x[ii).../3!...(3 (2875,2957,3048,3114,3142)... /3 [Pub. L. 
O. II, pp. 128,252). . ./3 (Mon. Not. XLI, 33 ; Ll, 313). . ./3 
{Pop. Asty. I, 352). . .Engelmann (2678,2742). . .Sp (ill) 
. . .Barnard (A.J. 447). . .Comstock {Pub. Washburn Obsy. 
X). . .LM. . .Lewis {Greenwich Obstts. 1894, 1895) {Mon. 
Not. LV, 17; LVi, 359)... Lv {A.J. 382)... See (3285, 
3314) {A.J. 378)...Ailken (3396,3585) ... Lewis and 
Bowyer {Mon. Not. Lix, 400). . .Aitken ( ). . .] 

I have given above a complete list of the meas- 
ures of 2 2824 (= H' N. 43). These observations, 
which are not included in the foregoing references 
to AB, will be found as follows : 

[Madler (Fixstern-Systeme l) {Dorpat Obsns. xi, xil, xill, 
xv). . .Herschel {Mem. R. A. S. iv)... Knott, Wilson, Sea- 
broke and Gledhill {Mem. R. A. S. XLll, XLlii, XT.vi). . .A (11) 
.../I {1 S7 3) .. .Annals Harvard Obsy. xill . . . Flammarion 



Discovered from iS'ji to i8gg by S. W. Burnham 



237 



{Etoiles Doubles et Multiples). . .Maw (Mem. R. A. S. Ll). . . 
Hall (11). . .Everett {Mon. iVo^. LVI, 464). . .Bigourdan {Bid. 
Ast. xvili). . .Glasenapp (lil). . .Coleman [Mem. R. A. S. 
Llll)...] 



P 690. |JL Cephei 



1878.87 259.4 
1889.52 259.6 
1898.58 260.0 



1878.42 299.4 
1898.58 298.7 



R.A. 2i'' 39"" 50^ 








Decl. + 58° 14' 








A and B 








19.16 5.0. . 


.12.3 


3« 


/8 


19.58 6 . 


.13.2 


3« 


/3 


19.36 


. 12.6 


2« 


/? 


A and C 








;/ 
41.19 




\n 


/8 


41.14 


.12.7 


211 


/3 



This is Herschel's " Garnet star," variable 4 to 
■6 m in five or six years ; and is No. 253 of Schjel- 
LERUP's Catalogue of Red Stars. The companions 
were detected with the 185^-inch. 

|[/3 (x). . ./3'. . . ./33. . .^ (2957). . .i3 {Pub. L. O. 11). . .] 



P 691. 0.1^.(17°) 4529 



R.A. 2i'' 40" 4S 
Decl. + 17° 12' 



1877.76 328.3 1. 16 9.0. ..II. 5 \n /3 

Discovered with the i8i4-inch. It should be re- 
measured. 

[^ (x)...j3'...] 



P 1036. Yarnall 9529 



R.A. 21'' 40™ 59* 
Decl. — 17° 51 ' 



1888.74 205.9 4-53 8.0...11.0 3;/ /3 

1895.79 209.2 4.70 8.0... II. 7 3« A 

1897.72 205.1 4.76 ... 3« A 

Discovered with the 12-inch. 

l[/3 (XIV)... /3 (287s)... |3 [Pub. L.O. ll)...Aitken (A./. 429) 
[Ast. Soc. Pac. VII, 305). . . ] 



P 692. Lalaiide 42601 







R.A. 2lh 44'" 49= 


\ 










Decl. +31° 17' 


f 










A and B 








1878.24 




10.8 


2.48 7.5. 


. . 1 1.0 


2H 


13 


1881.72 


12.7 


2.79 8.0. 


. . 1 1.0 


\n 


Ho 


1885.66 


I I.O 


2.76 




2)1 


H2 


1892.79 


8.8 


2.97 7.0. 
A and C 


. . 1 1.0 


\n 


Ho 


1878.78 


119-4 


36''89 


. . II.O 


m 


/3 


1892.79 


298.9 


37-13 


. . II.O 


m 


Ho 



Discovered with the 18^ -inch. My record shows 
that C is on the /side. 

[/3 (X) . . . /3' . . . Hough (2978,3234) . . . H2 ( ) . . . ] 



P 840. S.U. (2°) 5650 



R.A. 21^ 46™ 43^ 







Uecl. — 


2 9 ) 








1881.83 




39-4 


2-57 


8.7.. 


. 10. 


3« 


13 


1886.84 


39-1 


2.92 






3« 


UL 


1887.84 


36.9 


2.94 


8.8. 


. 9-8 


y^ 


Com 


1899.15 


36.3 


2.71 


9.0. 


. 10. 


VI 


D 



Discovered with the 15^ -inch at the Washburn 
Observatory. The magnitude in S.D. is 9.2. 

[/3 (xil). . .p*. . .Updegraff, Lamb and Comstock {Pub. Was/i- 
buffi Obsy. V, vi). . .Doolittle (Pub. Plower Ohsy. l)...] 





p 


168. Lai 


ande 42642 










R.A. 21'" 4 


-m 7s ) 












Decl. — 20° 35' \ 








1868.84 




73-6 


6.10 


7-5- - • 


8-5 


\fi 


Hd 


1876.74 


75-5 


5-50 


8.2. . . 


9-5 


211 


Cin 


1877.69 


73-7 


5-5° 


S.I. . . 


9-7 


211 


Cin 


1882.48 


73-7 


5-93 


8.0. .. 


9-5 


\H 


W 


1893.80 


70.2 


4-78 


8 . .. 


9 


2fl 


Sel 


1896.56 


74.0 


5-59 






5" 


Hu 



Discovered with the O-inrli. Fixed. A distant 
companion y". I'his pair is also found in the subse- 
quently published Harvard observations. 

[/3 (ill). . ./3 (Afoit. jVot. xxxiv, 50). . .Aniinls Harvard Obsy. 
XIII... Cm3...CinV.. Wilson (Cin"°). . .Sellers (3240). . . 
Hussey (A.J. 397)-- •] 



2.-,8 



General Catalogue of Double Stars 



P 1213. D.M. (12°) 4710 



R.A. 21^ 48"" 26= 
Decl. + 13° o' 



B and C 

o // 

1890.69 311. 9 0.8 r 9.1 . 

A and B 

o // 

1890.69 258.8 62.29 8.0. 
1898.69 258.9 63.45 8.0. 



9-5 3" ^ 



3'^ /8 
\n A 



Discovered with the 183^-inch at Chicago, but 
not included in the catalogues of new pairs of that 
time. 



(xvii). . ./3 (3047). . ./3 {Pub. L. O. 11). . .Aitken 



P 768. Lacaille 8964 



)...] 



R.A. 21'' 49" 



Decl. 



37° 49' 



This is a bright star (Gould 5.8 ra) closely fcl- 
lowing y Gruis. It was suspected to be a close 
pair with the 6 -inch at Mt. Hamilton in 1879. At 
the Sydney Observatory it was thought to be elon- 
gated in 90° in 1886. An examination with the 
.12-inch at the Lick Observatory in 1891, under 
favorable conditions, left the matter still in doubt, 
as no certain elongation could be seen. At all 
times the star was of course near the horizon, and 
it may not be double, but should be watched here- 
after at favorable points of observation. 

[)3 (XI). . ./3^ . ./S (3114). . ./3 [Pub. L. O. II). . .Russeil [Mon. 
N'ot. xi.vii, 473). . .] 



P 841. D.M. (53") 2628 







R.A. 21'' 49"! 21= ) 












Decl. + 53° 43' \ 








1881.56 




194.4 


2.03 8.5.. 


.11.5 


y 


/8 


1888.19 


193.6 


2.06 8.5. 


.11.8 


211 


Com 



Discovered with the 15}^ inch at the Washburn 
Observatory. Comstock measures another (place 
not given) "near /3 841," 172?? : 2 f 23 : 9 . . . 
10.5 (1887.88). The place of H 3066 is given by 
H, 2\^ 48'" 17^ ; -f- 53° 25', which is described as 
" quadruple," and the angle of AB given i99?8. I 



could not find this in 1873 in the assigned place. 
There is little doubt of its identity with ^ 841. 

[/3 (xil). . .iS". . .Comstock {Pub. Washburn Obsy. vi). . .] 
P 75- Lalande 42736 



R.A. 21'' 49'" 40^ 
Decl. + 10° 19' 



i»75-45 
1882.68 
1888.68 
1891.73 
1891.78 
1894.69 

1895-75 
1896.69 
1896.83 
1896.83 
1897.79 
1897.82 
1898.73 



34-3 
34-0 
37-8 
39-1 
40.5 
40.2 

37-0 
37-8 
37-6 
40.0 

39-3 
39-5 
40.4 



1.20 
1.23 
1.29 
I-I5 
1-34 
1. 12 
1. 14 
1. 17 
1. 01 
1.05 
1.27 
1.09 
1.07 



8.0 
8 

8.1 
8.1 



8.1 
8.0 



8.5 
9 

8.5 
8-3 



8.3 
8.2 



J 

Perry 

Lv 

/3 

Maw 

Sp 

Lew 

Lv 

Bow 

Lew 

I ;/ Morgan 

yi A 
in Bow 



1)1 

271 
3« 

5" 

3" 
m 

2>l 



Discovered with the 6-inch. Some change is 
probable. This system has a common proper 
motion of o!'i64 in the direction of 232?4 (Por- 
ter). 

[/3(i).. ./3 [Mon. A^oA XXXIII, 351)... j3 (3114). . ./3 (/'«/;. Z. O. 
n). . .A (i). . .Perry {Eng. Mech. xxxvi, 65). . .Lv [A.J. 
407). . .Lv'. . .Sp (ill). . .Maw [Mem. R. A. S. L, 7S). . . 
Lewis [Mon. Not. LVI, 359). . .Morgan {A.J. 439)... 
Aitken [A.J. 429). . .Lewis and Bowyer {Mon. Not. Lix, 
400)...] 







P 


693. Lalande 42730 










R.A. 2ih 


49" 54'" \ 










Decl. — 


7° 33' \ 






1878.37 



54-1 


0-93 


7.8. ..10.3 


y 


/8 


1879 


16 


54-4 


1.03 


7.0. . . 10.3 


211 


Cin 


1886 


78 


48.7 


1-15 


7.0. .. 9.8 


11/ 


LM 


1893 


82 


57-9 


1-43 


7.0. . .10.5 


\ii 


W 


1893 


82 


47.2 


1. 14 




3« 


Com 


1894 


74 


55-5 


0.89 




1;/ 


Com 


1895 


82 


50.2 


1.03 




3« 


Com 


1898 


65 


51-3 


1.2 I 


7.2. . . II. 5 


VI 


Cg 



Discovered with the 18^ -inch. Probably with- 
out change. 

[/3 (x). . ./3'.. .CinS. . .LM. . .Wilson ( ). ..Comstock [Pub. 
Washburn Obsy. x) . . . Cogshall ( ) . . . ] 



Discovered from i8yi to i8gg by S. W. Burnham 



239 



P 169. O. Arg. S. 21760 







R.A. 21I' 


50 


'"49= [ 












Decl. — 


21 


= 43' \ 








1876.78 


285% 


// 
1-93 




9.0.. 


. 9.0 


\n 


Cin 


1877.68 


275-9 


2.01 




8.6. . 


. 8.7 


\)i 


Cin 


1892.70 


282.6 


2.10 




9.0.. 


. 9.2 


2/1 


W 


1893.81 


279.6 


2.26 




9 • • 


■ 9 


m 


Sel 


1898.91 


279.7 


1.92 




9.2.. 


. 9.2 


3« 


D 



Discovered with the 6-iiich. 
wide pair about 95" apart. 



The south star of a 



[/3 (iii).../3 [Mon. Not. xxxiv, 59). . .Cin3. . .Cin''. . . 
Sellers (3240). . .Wilson ( ). . .Doolittle {Pub. Flower 
Obsy. I) . . . ] 



p 1214. D.M. (33°)4387 







R.A. 21" 


51"" 2.3^ \ 
33" 45' \ 












Decl. + 












A and B 








1890.65 




205.0 


1-39 


9.0. . 


10.3 


3« 


y3 


1898.72 


201. 1 


1.65 


9.2.. 


10.5 


2)1 


A 


1898.79 


202.4 


1.25 


8.4.. 


10.2 


211 


i3 


1898.89 


207.4 


1-55 






\n 


Ear 






C and D 








1890.65 


245°8 


5.06 


9.8.. 


10.8 


in 


)8 


1898.72 


243.2 


4.88 


10. . . 


10.8 


2)1 


A 


1898.79 


246.7 


4-93 


8.5-. 


1 1.2 


211 


H 


1898.89 


245-1 


5-04 






\n 


Bar 






A and C 








1890.65 




18.3 


112.43 






yi 


/3 


1898.71 


18.9 


112.47 






11! 


A 


1898.79 


18.1 


112.32 






2/1 


/? 


1898.89 


18.1 


1 12.04 


. . 




in 


Bar 



This quadruple was discovered with the i Sc- 
inch in 1884, but not included in the Chicago 
catalogues. The 36-inch shows a faint star about 
20" from C in the direction of 285°, and also a 5" 
pair of faint stars between AB and CD, with 
many small stars in the field. C is D.M. (33°) 
4388. 

[^ (xvu). . ./3 (3047). . -fi {P"l,. L. O. II). . . Aitken (3585)- • ■] 



P 275. Groombridge 3634 







R.A. 2\^ 


53™ 38= 


\ 






Decl. + 


60 


' 43' 


\ 


1876.04 




2.7 


0.28 




7.0. 




1885.54 


I.I 


0.43 








1889.70 


5-5 


0.27 








1890.68 


3-8 


0-39 




7.6. 





1898.67 182.4 0-52 7.5. 



7.0 



7-8 
7-6 



2« 


J 


3« 


HS 


7;/ 


Sp 


3« 


/? 



A 



Discovered with the 9.4-inch at the Dartmouth 
College Observatory. A difficult pair with small 
apertures. The measures do not show the change 
which would be expected in a pair of this class. 

[j3 (v)...;3 [Mon. Not. xxxv, 31) . . ./3 (3048). . ./S (/'«(5. Z. O. 
II)... -d (i)...Sp (in)... Aitken (3585)... HS ( )...] 



P 276. T| Piscis Aitstralis 







R.A. 2lh 


53" 56= I 












Decl. — 


29° 2' \ 















II 










1876.78 


"7-4 




1.87 


5.0. . 


6.0 


A'l 


Cin 


1877-51 


"5-4 




1-73 


5-5-- 


6-5 


111 


Cin 


1879.66 


II 1.2 




1.69 


6.0. . 


7.0 


111 


Cin 


1880.56 


"3-7 




1-73 


5-5-- 


7.0 


111 


Cin 


1884.70 


116. 2 




1.64 


5.2.. 


6.8 


V 


W 


1885.86 


118. 1 




1. 81 






211 


HI 


1886.78 


"5-9 










m 


LM 


1887.79 


"5-7 




1. 81 






211 


HI 


1888.78 


118. 5 




1. 61 


5-5-- 


5-9 


y 


i3 


1888.89 


^^i-i 




1-50 


5.0. . 


6.7 


211 


Lv 


1892.67 


1 12.4 




1. 16 


6.4.. 


6.8 


2fi 


Gl 


1893.78 


1 15.0 




1.80 






2« 


So 


1894.75 


III. 3 




1.70 






4« 


Sc 


1895-77 


1 10. 1 




1.68 






5" 


Sc 


1897.02 


"7-3 




1.84 


6.5.. 


7-0 


3« 


See 


1898.14 


"5-8 




1-75 


6 . .. 


7 


6n 


Sc 


Discov 


ered w 


ith 


the 


3-inch. 


A fine 


easi 


• pai 



and visible with a much smaller aperture. Prob- 
ably unchanged. The magnitude in Cord. G. C. 
is 5.7. The Ca/>e Caialogiie gives a proper motion 
of o."o26 in the direction of 270". It is very 
probable that this motion belongs to both stars. 

[/3 (v). . ./3 {Moil. Not. xxxv, 31). . ./3 (2875). . ./S {Pub. L. O. 
11). . .Cin 3. . .Cin<. . .CinS. . .Cin«. . .Wilson (Cin"). . . 
Hall (11). ...LM. . .Lv'. . .Scott (Brit. Ast. Asso. v, 75; 
VI, 250,368) {Mon. Not. 1.IX, 427) . . .See (3496). . . ] 



240 



General Catalogue of Double Stars 



P 694. Lacertae 4 

R.A. 2i>^ 58™ 6= \ 
Decl. + 44° 4' ^ 

o // 

1S78.66 352.3 0.50 6.0... 8.5 2« ^ 

1885.57 354.2 0.60 ... 2« H2 

1891.72 358.5 0.64 6.7... 8.3 yi f3 
1892.98 353.8 0.59 ... 5« Sp 

Discovered with the iSj^-inch. The 36-inch 
shows a 13m star, 328?! : 24!'!, and a 13.5m, 
277?3:27:'i. B.A.C. 7681. In B.A.C. 6 m, Arge- 
lander 6.5 m. 

[^ (X). . .I3\ . ./3 (3114). . .^ (/'«*. Z. a 11). . .HS ( ). . .Sp 
(III)... J 



P 695. D.M. (60°) 2330 



R.A. 21!^ 58" 33= 
Decl. -|- 60° 31 ' 



1878.54 147.8 2.54 8.0... 12. 3 2;/ /3 

1885.54 144.8 2.93 ... 2/1 H2 

1S9T.71 145.8 2.91 8. 3... 10. 8 yi fS 

1898.70 146.9 3. II 7.9...11.0 yi A 

Discovered with the i8j4-inch. No sensible 
change. 

[13 (x) . . . |3' . . . /3 (3114) . . . (3 (Pu6. L. O. ll) . . . Aitken 
(3585)... HS( )...] 



P 696. D.M. (15°) 4558 



R.A. 21'' 58" 43^ 
Decl. -|- 15° 17' 



1877.32 


355-1 


0.50 


8.0. . 


8.0 


■2)1 


J 


1878.21 


353-8 


0.65 


8.5.. 


9.0 


2 71 


/3 


1883.80 


354-0 


0-5 






m 


Perry 


1889.85 


361.9 


o-5± 






211 


Sp 


1893.70 


354-8 


0.52 


8.5.. 


9.0 


m 


w 


1894.57 


361. 1 


o.5± 






3« 


Sp 


1899.49 


352-8 


0.50 


8.1. . 


8-5 


3« 


A 



Discovered with the iS^/^-inch. Apparently fixed 
relatively. The s star of a small triangle. The 
Berlin A. G. Catalogue gives this star a proper mo- 
tion of 0^092 in the direction of 2o6?o. Obviously 
the movement of both stars is the same. 

[/? (x). . ./3'. . .J (i). . .Perry [Eng. Mech. XXXVIII, 192). . .Sp 
(ill). . .Wilson ( )... Aitken ( )...] 



P 474. O. Arg. N. 23373 



R.A. 22'' !■" 2= 
Decl. + 60° 25' 



1878.67 345.6 16.28 8. 5... 12.0 \n f3 
1891.71 346.6 16.42 8. 1... II. 8 yi /8 

Discovered with the 6-inch. 

[(3 (ix)...i3 {Mo>i. ISiot. XXXVIII, 78).../3i. . ./3 (3ii4)...|3 
{Pub. Z. 0. II)...] 



p 697. 19 Ccphei 

R.A. 22^ I™ 27= ) 

Decl. -(- 61° 42' \ 

1878.66 95.8 19-75 6.0... 12.0 \n /8 
1891.71 94.4 19.80 5. 7... II. 5 yi /3 
1898.58 93.1 20.18 ...12. 1 2« /8 

Discovered with the 18^ -inch. This star has a 
proper motion of oI'oSi in the direction of ii4?o 
(AuwERs). It is probable that the small star does 
not share in this movement. 

W (X). . ./3'. . .i3 (3114). - ./3 {Piii. L. O. 11). . .] 



P 990. D.M. (62°) 2030 



.A. 22^^ 


jm 22= ) 








eel. + 


62° 30' \ 








0.65 


8.3-- 


• 9-7 


yi 


/? 


0.50 


8.5-- 


. 9-8 


yi 


i8 


0.51 


8.9.. 


. I0.2 


211 


D 



1880.61 122.3 
1891.72 124.9 

1898.49 121. 7 

Discovered with the 18^ -inch in the course of 
an examination of S 2879 ^^d the vicinity for the 
purpose of seeing whether there was any other pair 
to which certain discordant measures, credited to 
2 2879 raight belong. These measures are as fol- 
lows : 

o // 

1840.61 129.7 0.91 m 02 

1856.93 130-5 0.5 \7i Secchi 

There has been no material change in either 
angle or distance of S 2879 since the first measures, 
as will be seen from the following : 

o // 

1836.35 226.2 0.80 yi 2 

1879.94 229.6 0.87 yi /3 



Discovered from i8ji to i8gg by S, W. Burnham 



241 



It is certain that the measures of OS and Secchi 
cannot belong to this star, unless by a curious coin- 
cidence each made the same error of about 100° in 
reading the position-angle. Apparently neither 
observer noted the discrepancy, or it would have 
been followed by further observations. It will be 
seen that the measures fairly well describe fi 990, 
and there is at least a probability that they belong 
to that pair. It is a much more difficult double 
than 2 2879. The magnitude of /? 990 in the 
D.M. is 9.0. It is 5'" 46*/ and 18' .y of 2 2879. 

[iS (xiii).../33.../3 (3ii4)...(3 {Pub. L. O. 11) . . . Doolittle 
{Pub. Flower Obsy. l). . . ] 







P 


170. Lalande 43 


158 










R.A. 22^ 


2™ 31= ) 












Decl. — 


19° 4' \ 













// 










1876.05 


63-7 


1.69 


9.1.. 


• 9-4 


4« 


J 


1877 


50 


60.5 


1.68 


8. I.. 


. 8.5 


4« 


Cin 


1885 


73 


64-5 


1-39 


8.0. . 


. 9.0 


\n 


W 


1886 


67 


59-6 


1-75 


7.8.. 


. 8.0 


bn 


LM 


1888 


73 


62.5 


1. 71 


9.0.. 


. 9.0 


2« 


T 


1888 


78 


60.4 


1.56 


8.2.. 


. 8.2 


2« 


Lv 


1893 


82 


58.2 


1. 17 


8J^.. 


• ^y. 


2)1 


Sel 


1896 


72 


59-0 


1.42 






zn 


Hu 


1897 


78 


58.6 


1.74 


8.2. . 


. 8.4 


in 


See 



Discovered with the 6-inch. This star is a dis- 
tant companion (40'^ : 160") to 35 Aquarii. There 
is a faint star between. The wide pair in the field 
nf is H 3092. 

I/J (ill). . .(3 {Mon. Not. xx.Kiv, 59). . . J (1). . .Cin3. . .Cin''. . . 
Cin5. . .Wilson (Cin'°). . . LM . .. Lv'. . .Tarrant (2991). . . 
Sellers (3240). . .Hussey {A.J. 397). . .See (3496).. .] 



P 842. D.M. (4°) 481 I 



R.A. 22'' 3'" 31^ 



'! 



3881.73 121. 1 1.26 8.8... 9.1 3;/ y8 

1886.84 T18.7 1.28 ... 3// UL 

1887.77 121. 6 1.23 8.8... 9.7 3// Com 

Discovered with the 15)^ -inch at the Washburn 
Observatory. 

1/3 (xil). . .^■t. . .Updegraff, Lamb, and Comstock {Pub. Wash- 
burn Obsy. v, vi). . .] 



P 375. O. Arg. N. 23503 
R.A. 22'' 4"" 29 



Decl. + 



4-" 29^ ; 

50" u' i 



1876.41 304.7 0.93 8. 5... 10. 5 171 A 

1891.72 306.9 0.88 8.5... 9.2 2n [i 

Discovered with the 6-inch. 
[/3(vi)...^ (2062,3114)... /3 {Pub.L. 0. II)... Zl (i)...] 

P 769- Lacaille 9046 







R.A. 22'' 


4 


:-( 










■ 


Decl. — 


35 








1879.69 


348°6 


0.6±; 




7.0. .. 


S.o 


iti 


/3 


1891.85 


351-6 


0.91 




7.4. . . 


8.1 


y> 


^ 


1897.79 


342.4 


0.46 




6.1. .. 


8.1 


\n 


See 


1898.76 


357-4 


0.66 




7.0.. . 


7-9 


4« 


A 



Discovered with the 6-inch at Mt. Hamilton in 
1879. Probably direct motion in angle. Gould 
6.8m. 

[^ (x!).../3^..^ {j,ii^)...^{Pub.L. O. II)... See (3496)... 
Aitken(3s85)...] 



P 698. Lalande 43303 

R.A. 22" s"> 55^ I 
Decl. -f 6° 18' \ 



1878.74 


337-6 


9-97 


7.2.. 


. I 2.0 


211 


/3 


1885.73 


337-5 


10.45 






211 


H2 


1891.63 


337-9 


10-55 


6.8.. 


. I I.O 


2 71 


/? 


1898.88 


337-8 


IO-33 


8.0. . 


. 10.8 


211 


/8 


Discovered wi 


th the 18^ 


-inch. 


Fixe 


d. 





[^(x)...,3'...^(3ii4)...^ {Pub.L. O. ii.)...H2 ( )...] 





p 


475- La 


lande 43305 










R.A. 22'' 


6™ 15^ ( 










Decl. — 


%" 36' S 






1876.72 




240d= 


1/ 

i-5± 


7.5. . . 1 1.0 


\n 


/8 


1879-75 


230.6 


.... 


7.0. .. 1 1.0 


Ml 


Cin 


1882.62 


237-3 


1.83 


7.5. . . 9.2 


27! 


W 


1886.76 


236-5 


1.62 


7.0. .. 1 1.2 


271 


LM 


IS9I.84 


228.3 


1.3 I 


7.6. . . TO. 4 


3" 


H 


1 89 7. 89 


229.0 


1.46 




3" 


Hu 



24- 



General Catalogue of Double Stars 



Discovered with the 6-inch. The measures are 
not very accordant in angle, and change is doubtful. 

\P [\-K)...^{Mon.Not. xxxvill, 78). . ./3 (3114). . ./3 {Pub. L. 
O. 11). . .Cin«. . .Wilson (Cin"). . . LM . . .Hussey (.4. /. 
427)- ••] 

P 436. O. Arg. N. 23612 



R.A. 22'' 6" 43' 
Decl. + 57° 2 

A and B 



l\ 



1876.56 327.5 
1889.96 327.8 
1898.58 328.1 



19.63 
19.31 
19. 68 



7-5. 



7.2 
A and C 



1889.66 
1898.58 



100.5 
100. 1 



19.36 
19-54 



,11.5 

.12.5 

10.2 



13 



111 
2n 



zn 



J 

Ho 

/8 



Ho 

/3 



The small star, B, was noted with the 6 inch, and 
the third star, C, added by Hgugh with the 18^- 
inch. In 1889 he measured the principal star as a 
close pair, 2o8?5 : of53, on a single night, the new 
component being iim. I could see no trace of 
any elongation with the 36-inch in 1890, nor at 
any subsequent time. 

[/3 (VII)... /3 (2103,3048)... /3 {Pub. L. O. II). ..A (i). ..Hough 
(2978)...] 

P 1215. S.D. (11°) 5781 



R.A. 22" 6" 



47= 



Decl. — 11° 46' 



1890.82 


90.2 


1-53 


9.0 . . . 9.0 


3« (i 


1896.78 


91.0 


1-54 


9+--- 9 + 


yi A 


Discovered wi 


th the 12 


inch. 




[^(XVII). 


./3 (3047)...^ (/'«/'. 


Z. 0. II).. .Aitk 


en (3466) 




p 699. W 


' XXII. 114 








R.A. 22'' 


7™ 45= / 

r 7' \ 








Decl. + 




1878.44 


187-3 


II 
2.04 


8.1 ... 12.2 


3'' P 


1891.72 


185. 1 


2.43 


8.1 ... 12.0 


y> ^ 


1896.80 


186.3 


(0.96) 


. . . 


m L 


1899.54 


184.5 


2.46 


7.9. . .12.3 


3« A 


1899.72 


184.2 


2.1 1 


8.5 .. . 12.0 


1/7 D 



Discovered with the 183^ -inch. 
[/3 (x)...(3'.../3 (3ii4).../3 {Pub. L. O. 11)... Lewis {Mon. 
Not. l.ix, 400). . . Aitken ( ) . . .DooliLtle {Pub. Flower 
Obsy.l)...^ 



[1-45 


8.3. 


. . 12.0 


3« Cin 


[1.66 


8.8. 


. . 12.2 


2;/ W 


ri.52 


8.5. 


. . 10.2 


2)1 D 


[1.49 


8.0. 


. . 11.2 


3« Cg 


the 6 


inch. 


This is 


a distant 



P lyi- Lalande 43350 

R.A. 22'' 7" 51= ) 
Decl. — 21° 38' \ 

1878.75 258^9 

1892.70 259.8 

1898.50 256.0 

1898.65 258.1 

Discovered wi 
companion to 41 Aquarii. 

[/3 (ill). . ./3 {Mon. Not. xxxiv, 59). . .Cin". . .CinS. . .Cin*. . . 
Wilson i ). . .Cogshall ( ).. .T)oo\M\e. {Pub. Flower 
Obsy. l). . .] 

P 376. Radcliffe 5607 

R.A. 22'i 8"' I" 
Decl. + 59' 30' 

o ;/ 

1876.24 149.2 

1885.54 148.2 

1892.75 150.7 

Discovered with the 6-inch. 2 2880 is 22' n. 
[|8(vi).../3(2o62).../3 {Pub. L. 0.ii)...A (i)... Wilson ( ) 
...HS( )...] 



3-57 


8.0. 


. 1 1.2 


2« 


A 


3.61 






2« 


H2 


3.68 


7-7- 


.10.8 


yi 


W 



P476. 



W^ XXII. 180 



R.A. 22'> 8" 41= 
Decl. + 30° 48' 



1877-57 


93-1 


2-57 


9-5- 


. 10. 1 


4;/ 


J 


1882.68 


90-5 


2.27 


9-5- 


. 10 


m 


Perry 


1893-54 


92-5 


2-57 


9.4. 


. lO.O 


All 


Lv 


1894.63 


93-4 


2.52 


9.2. 


. 10. 


211 


w 



Discovered with the 6-inch, fi ^■j'j is in a low- 
power field. 

[|3 (ix). . ./3 {Mon. Not. xxxviii, 78). . .4 (i). . .Perry (Pjig. 
Meek, xxxvi, 65). . .Lv {A. J. 382). . .Wilson ( ). . .] 





p 


991. Radcliffe 56 


19 










R.A. 22" 9" 1= ) 
Decl. + 51° 58' \ 


















1880. -16 


150.9 


II 
0.59 8.0. . . 


8.0 


Sn 


/^ 


1893-55 


143-4 


0.57 8.0. . . 


8.2 


2)1 


Lv 


1893.66 


145.2 


0.73 8.8... 


8.8 


2)1 


W 


1893.82 




Single 






Com 


1896.66 




Single] 






Com 


1899.59 


145.0 


0.59 




3" 


A 



Discovered from iSji to i8gg by S. W. Burnham 



243 



Discovered with the 183^ -inch. There does not 
appear to be any material change. 

[i3 (xin)...-/33...Lv (^./. 382)... Wilson ( )...Comstock 
{Pub. Washburn Obsy. x). . . Aitken { ). . . ] 

P 477. W^ XXH. 225 

R.A. 12^ 10"' 28" \ 
Decl. -(- 30' 49' \ 



1877-45 


45-7 


6.51 


9-3- 


.11.0 


3;/ 


d 


1882.68 


46.0 


7.04 


9 - 


. 1 1 


in 


Perry 


1893.54 


43-5 


6.48 


9.0. 


. 9-8 


y> 


Lv 


1894.63 


43-4 


6.48 


9.2. 


.10.5 


211 


W 


1899.12 


43-6 


6.64 


9.2. 


- 9-7 


A" 


D 



Discovered with the 6-inch. 
[/3(ix).../3 {Mon. Not. xy^xvui, ■]?,).. .A (i)... Perry (En^ 
Meek. XXXVI, 65)... Lv (A.J. 382) .. .Wilson ( ).. 
Doolittle [Pub. F/ower Obsy. l). . .] 



P 377- O. Arg. N. 23765 



R.A. 22'' ii"" 23=^ 
Deci. +54° 4' 

B and C 



i«9i.54 
1898.58 



302.8 
303-6 



7.02 
6.80 



10.6 . 
9.7. 



II-5 
10. 1 



3« 

2/1 



A and B 



1891.54 65.9 63.88 8.0... 3« P 

1898.58 65.8 62.30 7.2... 2« /? 

Distant double companion noted with the 6-inch. 
The large star has a proper motion of o"226 in the 
direction of 8i?4 {A. G. C). The measures of AB 
give for this movement o!'225 in 62?o. The 36- 
inch shows six or eight stars nearer to A than B, 
including a faint pair, with distance less than BC, 
16 ['5 from A in the direction of 263°. 
[/3 (VI). . .(3 (2062,3114). . .(3 [Pub. L. O. II). . .] 

P 378. O. Arg. N. 23808 





. 


K 


A. 22'' 


12 


- 50^ } 












D 


=cl. + 


60 


»,6M 














A and 


B 








1876.55 




90.8 




// 
3.18 




9.2.. 


. 10.2 


211 


J 


1878.65 


90.4 




l-il 




8.2. . 


- 8.5 


Ml 


/3 


1892.75 


90-9 




3-39 




8.5-- 


• 9-3 


v 


\v 


1898.70 


88.3 




3-44 




8.7. 


■ 9-5 


211 


D 



1878.65 29.4 

1892.74 31.6 

1898.70 29.0 



A and C 

7-48 
7.06 
7.42 



.11.8 \n ft 
. 12.5 2/1 W 
.10.5 2n D 



B was discovered with the 6-inch, and C added 
with the 18^-inch. 

[(3 (VI)... /3 (2062)... /3'... J (I)... Wilson ( )...Dooliule 
{Pub. Flower Obsy. l). . .] 







P 


r2l6. Lalande 4360 






R.A. 22'' 14'" 42= } 






Decl. + 28° 55' f 


1890.51 




317-7 


0^64 8.4. . . i 


1892.76 


317 





°-S°— ■ ■ ■ 


1895.74 


312 


5 


0.52 


1896 73 


314 


5 


0.46 


1896.90 


315 


7 


0.57 


1897.69 


310 


9 


0.54 


1897.76 


311 


4 


0-35 


1898.67 


314 


2 


0.54 



8.7 



V' 


/3 


6/1 


Sp 


3« 


Lew 


2// 


Lew 


4// 


A 


2n 


Bow 


in 


Lew 


VI 


Lew 



Discovered with the 16-inch of the Warner Ob- 
servatory in 1885. 

[(3 (xvii). . .;8 (3047). . .,3 (Pub. L. O. II). . .Sp (III). . .Lewis 
and Bowyer (Man. Not. L^'I, 359; Lix, 400) (Greetnuich 
Obsns. 1895). . .Aitken (3466). . .] 

P 1217. Lalande 43635 



1890.53 218.9 
1892.93 225.9 
1896.78 224.8 



R.A. 22'! 15™ 335 
Decl. + 30° 42' 

a 
0.61 7.4. 

o-55± 
c-59 



10.3 in /3 
Sp 
A 



5« 



Discovered with the 36-inch. A difficult pair, 
and therefore the change in angle requires verifica- 
tion. The magnitude in D.M. is 7.0. 

[/3 (xvii). . .^ (3047). . ./S (Pub. L. O. II). . .Sp (iii). . .Aitken 

(3466;...] 



P 379- Radcliffe 5658 

R.A. 22'' iC"" 0* [ 
Decl. +53° 13' \ 



IS77.26 


332-0 


I.I I 


S-3-- 


. 9-0 


6« 


J 


I8S2.68 


336.0 


i.oS 


8.5 •• 


. 9.0 


m 


Perr>- 


1891.65 


333-7 


1.02 


8.4.. 


. 8.6 


3" 


ft 



244 



General Catalogue of Double Stars 



Discovered with the 6-inch. Without change. 

[(3 (vi). . .(3 (2062,31141. . .(3 {Pub. L. O. II). . .J (l). . .Pen-y 
{£>!?■ Mech. XXXVI, 65). . . ] 

P 172. 51 A guar a 







R.A. 22h 


17'" 52^ I 












Decl. — 


5° 27' S 












A and B 








1875.66 



20.4 


// 
0.46 


6.7.. 


6-7 


6ji 


J 


1877-76 


20.9 




6.0. . 


6.0 


111 


Cin 


1878.19 


24.9 


0.58 






411 


/3 


1879-25 


ig.6 


0.66 


5-9- • 


6.0 


4// 


Cin 


1879.30 


19. 1 


0.52 


6.8.. 


6.8 


2« 


Sp 


1879.70 


16. 1 


0-73 


6.0. . 


6.0 


I// 


y8 


1886.72 


16.8 


0.78 


6.2. . 


6.4 


2;/ 


LM 


1888.65 


14. 1 


0.60 


6.8.. 


7-9 


3« 


Lv 


1888.74 


T8.3 


0.60 


6.5-- 


6-5 


VI 


T 


1889.53 


12.8 


0-53 






211 


Sp 


1890.78 


16.2 


0.67 


6.5.. 


6-5 


i" 


T 


1891.59 


12. 1 


0.68 


5-6-- 


6.0 


y 


/8 


1892.71 


12.9 


0.68 






212 


r 


1893.82 


9-4 


0-55 






y 


Com 


1895.79 


6.2 


0.66 






4« 


Com 


1895.83 


7-3 


0-57 


5-5-- 


5-5 


VI 


A 


1897.71 


5-3 


0-73 






y 


A 


1897.88 


10.4 


0.67 






y 


Hu 


1898.79 


10.5 


0.88 




- 


2n 


Bry 


1898.90 


5-2 


0.58 






\n 


/? 


Discovered with the 


6-inch. 


It concl 


usively 


appears 


:roni the 


measures that it 


s a binary system 


in slow retrograde movement. T 


^le proper motion 



is very small, o!oi5 in the direction of 277?6. 

The distant stars noted by Herschel I (= H' v. 
95) have never been measured before, and are too 
remote to be of any interest. 

AB and C 

o // 

1898.90 341-9 54-44 ...ii.o 171 /8 

AB and D 

o // 

1898.90 190.6 113.68 

AB and E 

o // 

1898.90 133.3 132.39 

r/3 (ill). . ./3 {Mon. Nol. xxxiv, 59). ../3'. ../3^ . .j3 (3114). . . 
/3 (Pub. L. 0.u)...A (l)...4 (2086)... Cint.. .CinS... 
LM . . .Lv'. . .Tarrant (2991,3186). . .Sp (11, in) . . .Corn- 
stock (Pub. Washburn Obsy. x)...Aitken (3396) (A.J. 
429). . .Hussey (A. J. 427) ... Bryant (Mon. Not. Lix, 
400)...] 



10. o ifi fi 



9.3 in (i 



P 843. D.M. (1°) 4606 

R.A. 22'' 18" 42' } 
Decl. + 2° 3' ( 

O II 

1881.65 236.1 3.46 8. 4... 12. 5 3« /? 

1886.83 229.5 3.23 ... 2« UL 

1888.01 233.6 3.26 8. 5... II. 7 3« Com 

1897.94 234.4 3.57 ... i« Br 

Discovered with the 151^ -inch at the Washburn 
Observatory. 

[)3 (xil). . .jS-t. . .Comstock, Updegraff and Lamb (Pub. Wash- 
burn Obsy. V, vi) . . . Brown ( ) . . . ] 



P 290. 34 Pegasi 







R.A. 22'' 


20™ 31^ 












Decl + 


3° 47' 








875-77 




223-3 


// 
2.61 


6.0. 


- -13-0 


211 


HI 


878.49 


218.9 


2.62 


6.0. 


--12-5 


y 


/8 


885.74 


2 14.0 


3-07 






m 


H5 


889.63 


218.7 


2.71 


5-8. 


. .11.7 


y 


/? 


898.61 


217.8 


2.83 




. . I 2.0 


y 


/8 


898.73 


218.4 


3.08 


6.0. 


. .12.8 


211 


A 



Discovered with the 26-inch at the Naval Ob- 
servatory. The relative change is slow, but it is 
certain that this is a physical system. The com- 
ponents have a large proper motion of 0^259 in 
the direction of 8i?i (Porter). If the small star 
was fixed in space, the angle and distance would 
increase respectively 26° and 5^5 during the time 
covered by the measures. 

[i3 (v).. ./3 (Mon. Not. xxxv, 31).. .(3'. . ./33. . ./3 (2957).. .)3 
(Pub. L. O. II)... Hall (i)...Aitken (3585)... HS 
( )--.] 



P 700. D.M. (48°) 3728 



R.A. 22^ 21'" 35' 
Decl. +49° 5' 



I877-.70 332-4 10.33 
1878.19 333-8 9.83 



^.O. . . 12.0 in zi 

\.2 . . . 12.0 2« /3 



1893-78 335-8 9.96 8 3... 12.0 yi W 

Discovered with the i8;5^-inch. /8 380 is in the 
field 27""/ and i ' n. 
[i3 (x).../3'...J (i)... Wilson ( )...] 



Discovered from i8jr to i8gg by S. W. Burnham 



245 





p 


291. w 


XXII. 


436 










R.A. 22'' 21 


r 55' S 










Decl. + ; 






1875-82 


157-8 


0-33 


8.4. 


. 8.4 


4« 


A 


1878.64 


160.0 


0.42 


8.5- 


. 8.8 


^n 


^ 


1880.08 


165.5 


0.50 


8.2. 


- 8.5 


2/1 


^ 


1886.77 


162.9 


0.38 


8.0. 


- 8.3 


Ifl 


LM 


1889.63 


167-5 


0.46 


8.4. 


. 8.7 


i" 


/3 


1890.58 


164.8 


0.40 + 






VI 


Sp 


1893-75 


173-8 


0.47 


8.0. 


. 8.2 


2n 


VV 


1894.74 


168.4 


o.3o± 






6n 


Sp 


1898.75 


173-5 


0.52 


8.0. 


. 8.0 


3'i 


A 


1898.77 


173-2 


0.52 






271 


Bry 



This star was suspected with the 6-inch to be a 
close pair in 1872, and verified by me with the 26- 
inch at Washington in August 1874. It is a diffi- 
cult object with a small aperture. It is clearly a 
binary. Both angle and distance are increasing, 
and it is much easier now than it was at the time of 
discovery. Aitken measures a 13.5m star, i25?o : 
3ifo6 (1898.78) m. This pair is within the trian- 
gle of 6m stars formed by 34, 35, and 37 Pegasi. 
The first of these bright stars is y8 290, and the last 
S 2912. 

[|8 (v). . .^ {Mon. Not. XXXV, 31). . .(3'. . ./33. . ./3 (2957). . ./3 
{Pub. L.O.n)...A (i)...LM...Sp (ill)... Wilson ( ) 
.. .Aitken (3585). . .Bryant ( )...] 



P 380. Raddiffe 5693 



R.A. 22'' 22'" 2^ 
Decl. + 49" 6' 

C and D 



1877.60 245.7 21.4 7. 7... 12. 5 m /3 
1893.73 243.1 21.34 7. 8... 12. 8 in W 

A and B 

O II 

1876.10 321.6 24.37 ...12.0 2)1 A 

1893.67 322.5 24.93 7-8... 10. 3 yi VV 
A and C (= OS App. 234) 

o * 

1874-97 134-2 36-31 7-3--- 7-7 yi -I 
1886.52 134.2 36.36 8.0... 8.3 4// Fr 
1893.67 134.2 36.15 ... 8.3 yi W 

Discovered with the 6-inch. All the measures 
of the 02 stars are given. 

[/3(vi)...ja{2062)...J { 1)... Fran/, (30S0)... Wilson { ).. .] 



P 701. Lalande 43867 

R.A. 22'' 22'" iqs \ 
Decl. + 11° 38' \ 



1877.82 


283.4 


1.24 


7-0 


. . 10. 


211 


A 


1878.24 


279.9 


1.24 


7-5 


. .10.2 


211 


/3 


1887.59 


273-9 


I-3I 






5« 


H2 


1893.69 


277.2 


1. 18 


7-3 


. .10.7 


yt 


W 


1897.89 


268.0 


1.42 






m 


Br 



Discovered with the 1 81^ -inch. Porter gives 
the principal star a proper motion of 0^166 in the 
direction of 79^6. The companion is evidently 
moving with it. 

[;8 (x).../3'...z] (l).. .Wilson ( )...H2 ( ).. .Brown 



P 173. D.M. (56=) 2776 

R.A. 22*' 22"' 245 \ 

Decl. -f 56° 35' ^ 

O II 

1875.83 232.8 2.88 8. 4... 10.7 yi J 

1892.75 232.1 2. go 8. 2... 10.5 yi W 

Discovered with the 6-inch. 
[;3(iii)...(3(7l/o«. AV. xxxiv, 59). ..^ (i). ..Wilson { )...] 



P 1218. \V= XXII. 476 







R.A. 22*' 22 


"33= I 












Decl. + 29 


' 5' t 








[890.52 




53-5 


1-44 


8.6. . 


8.8 


3'' 


^ 


1890.95 


51.0 


I-I5 


8.7.. 


9.0 


2/1 


Ho 


1892.16 


55-0 


1.42 






4;/ 


Sp 


1892.93 


57-2 


1. 10 


8.0.. 


8-5 


2 71 


I 


1893.94 


54-5 


1.42 






3« 


Sp 


1895-77 


52.8 


1.76 






2« 


Lew 


1896.73 


52-1 


1.72 






\n 


Lew 


1896.77 


52.7 


1-33 






V> 


A 


1896.86 


55-2 


1.46 






211 


Bow 


1897.67 


55-2 


1-53 






4« 


Bow 


1897.76 


54-6 


1. 61 






\ii 


Lew 


1898.67 


50.8 


1-59 






3" 


Lew 


1898.68 


52.2 


1.48 






211 


Bow 



Discovered with 
changed. 

[/3{xvn).../3(3047).. 



the 



2-inch. Evidently un- 



/3 {Pub. L. 0. 11). . . Hough (3234). , 
Sp (1 11)... Jones {Proc. Haverford Coll. Oisj: 1892)., 
Lewis {A/on. iVot. 1.VI, 359) (Greenwich Obsns. 1895). 
Aitken (3466) . . . Lewis anil Bowyer ( ). . . ] 



246 



General Catalogue of Double Stars 



P 174- Lalande 43? 



R.A. 22'' 22™ 58= 
Decl. — 10° 17' 



1876.15 

1878.77 
i88t.6i 
1888.77 
1898.84 



287.9 
290.6 
292.6 
291.7 
292.4 



7-38 
9.09 
9.08 
8.62 
9.06 



8-5 
S.o 
8.1 

8-3 
8.0 



Discovered with the 
changed. 



. 12.0 
. 12.0 
.11.3 
.10.7 
. 10. ^ 



3« 

2« 

yi 

211 



A 
Cin 

/3 



(ill) . . .|3 (Mon. Not. XXXIV, 59) . 
Z. O. u)...A (iK..Cin5...] 



P 478. S.D. (8°) Si 



6-inch. Probably un- 
1812875). ..(S'*. ../3 [Pub. 







R.A. 22" 


23™ b= ) 












Decl. — 


r 56' i 












A and B 








1878.20 




32.6 


1.32 


9.0.. 


. II. 


2;/ 


/3 


1886.80 


32.2 


1.38 


9.6. 


.11.2 


\n 


LM 


1898.72 


30.6 


1.62 


8.5. 


. 10.2 


211 


Bd 


1898.75 


32-4 


1.23 


9.2. . 


.10.3 


3« 


A 


1898.84 


30.1 


1.24 
A an 


8.6. 
d C 


- 9-3 


\)i 


/? 


1877.80 


239.0 


28.55 




. 9.0 


\n 


;8 


1898.72 


239-4 


28.69 




. 8.7 


Zn 


Cg 


1898.74 


239.2 


29.08 




. 9.0 


2 71 


A 


1898.84 


239-7 


28.67 




. 8.7 


\tl 


/8 



Discovered with the 6-inch. The middle of 
three stars in the field. Unchanged. Boothroyd 
measures a 13.5m star from A, 54?7 : 18^92 
(1898.71) 2 n. 

[/3 (rx). . ./3 (7l/o«.iVb/'. XXXVIII, 78). . ./3'. ..LM. . .Boothroyd 
( )...Aitken(3585)...J 





p 


76. La 


ande 43906 










R.A. 22" 


23-" 22= ) 
0° 49' \ 










Uecl. — 






1867.86 




332-1 


1.50 


. . . 


\)i 


Hd 


1876.24 


335-3 


1-47 


8.2 . . .10.1 


^n 


J 


1879.18 


333-6 


1.48 


7.7--. 9-8 


4« 


Cin 


1888.85 


338-2 


1.24 


8.0. . . 9.7 


\n 


Lv 


1890.77 


334-4 


1. 41 


8.0. . . 10. 


2)1 


T 


1892.65 


333-6 


1.44 




2/1 


T 


1898.65 


337-1 


1.46 


8.0... 9.7 


3« 


Bd 



Discovered with the 6-inch. In a low-power field 
with t, Aqiiarii. No relative motion. An earlier 
observation is found in Ha/'vard Aiiiiah, published 
after ^ (i). 

[|S (i) . . ./3 {Mon. Not. xxxill, 351) . . .Annals Harvard Obsy. 
XIII... zl (i). . .CinS. . .Lv'. . .Tarranl ^ ' 86) ... Booth- 
royd ( )...] 





p 


844. Lalande 


43912 










R.A. 22*' 


23™ 32= 


I 










Decl. + 


5° 2' 


\ 










B an 


d C 








1881.73 




3I7-I 


3.20 


9-3 


. . 10.9 


S'i 


/3 


1886.84 


317-7 


3-25 






A,n 


UL 


1887.79 


316. 5 


3-44 


9.0 


..10.7 


2« 


Com 


1888.88 


310-7 


. . . 


8.8 


. . 1 1.2 


VI 


Lv 


1891.86 


316. 1 


Z-Z^ 


9-7 


. . 10.8 


m 


/3 






A and B 








1881.73 




34-3 


98-34 


8.1 




3« 


/? 


1886.84 


34-2 


98.81 






4" 


UL 


1891.86 


34-3 


98-25 


8.1 




211 


^ 



Discovered with the 15 ^^ -inch at the Washburn 
Observator)'. Without change. 

[/3 (xil). . .(S-i. . .^ (3114).. .(3 (Pub. L. O. ll)...Lv\. .Corn- 
stock, Updegraff and Lamb {Pub. Washburn Obsy. v, 

VI)...] 

P 1264. Lalande 43933 



R.A. 22'' 24"" 1= 
Decl. — 0° 29' 



1891.70 
1898.83 



21-7 3-85 7-8-- -13-3 3« ^ 

19.8 4.17 7. 9... 13. 3 yi A 



Discovered with the 36-inch. It is i" 24^ /and 
9' 11 oi t, Agua?ii. 

[/S (xvill). . .,8 (3113). . ./3 {Pub. L. O. II). . . Aitken (3585). . .] 

P 702. 8 Cephei 



1878.65 285.7 
1898.51 284.2 



R.A. 22'' 24" 43= ) 






Decl. +57° 48' \ 






A and B 






19.37 ...13-0 


2;/ 


i3 


19.84 -..13-0 


3« 


^ 



Discovered from iS'ji to i8gg by S, W. Burnham 



247 



A and C (= S 58 App. i) 

o // 

1835-15 192-0 40.87 3-0... 5-3 6« 2 

1867.78 191. 9 40.83 3.2... 5.9 5;? J 

1878.65 191. 9 40.88 ... in (i 

1883.32 191. 6 40.88 ... S" Fr 

1898.51 191.5 40.94 ... 2)1 (i 

The small star was discovered with the 18 J^ -inch. 
The bright stars appear to have a common proper 
motion, but it is small, oToio in the direction of 
i5i?9 (AuwERs). The larger star is supposed to 
be variable to the extent of about 15^ mag. in 
5' 8- 47'- 
[^(x)...j3'...] 

The wide pair is S 58 App. I =: H' v. 14 = Sh 
347 = OS (App.) 235. A few only of the measures 
are given. The observations will be found in the 
double-star catalogues referred to, and in the fol- 
lowing : 

[Powell {Mem. R. A. S. xxv). . .Raddiffe Obsns. xx, xxvi 
. . .Schur (2255). . .Golding (2257). . .Y,z\\{Dunsink Obstti. v) 
...A (11). . . Jedrzejewicz (2345). . . Maiebckto {Double Star 
Meas. 1892). . .Franz (2650). . .Glasenapp (11). . .] 

p. 703. a Lacertae 



R.A. 22^ 26" 21 = 

Uecl. -(- 49° 40' 



1878.02 298.8 30.16 4 ...12.0 2« ^ 
1888.71 297.8 31.59 ...12.2 3« /8 

Discovered with the 18^-inch. Auwers gives 
the proper motion of this star, of 127 in the direc- 
tion of 88?2. The companion is not moving with 
it, and it is therefore only an optical pair. 

[j3 (x).../3'.../3 (2957)... /3 (.P"b. L. U. n)...] 



P 479- D.M. (67") 1444 



R.A. 22'' 26™ 29S 
Decl. + 67° 36' 



1877.10 29.8 2.41 9.7. ..II. 2 2/1 J 

1893-83 31-5 2.39 10.0...11.0 3« W 

1898.70 29.8 2.22 9. 8... 10. 5 I// D 

Discovered with the 6-inch. One of a small 
equilateral triangle of stars in the field ; the other 
two brighter. This in D.M. is 9.2 m. 

[/3 (ix)...|3 {Mon. Not. xxxvill, 78) . . . il (l) ... Wilson 
( ) . . . Doolittle {Pub. Flower Obsy. l) . . . ] 



P 704- D.M. (66) 1518 

R.A. 22'' 27"' 3^ \ 
Decl. + 66' 56' f 

o // 

1877-55 207.3 2.3± 9.0... II. 5 i>i ft 

1892.76 205.4 2.27 9.0... II. 5 m W 

Discovered with the 18^-inch. 
[^(x)...^'... Wilson ( )...] 



P 381. \V= XXII. 580 

R.A. 22*" 27"" 22= ) 
Decl. +32° 47' \ 

O II 

1877.04 230.6 1.48 8.5...10.0 3« J 

1882.68 235.5 1-54 8.0... 10. 5 \n PTry 

1891.65 232.7 1.44 8.5.. . 9.9 yi ft 

Discovered with the 6-inch. Fixed. 

[(3 (VI)... ^ (2062,3114)...^ {Pub.L.O. 11)... Perry {Eng. 
Mech. xxxvi, 65). . .] 



P 770. Lalande 44060 



R.A. 22'' 27" 47= 
Decl. — 23° 13' 



1879.75 36oztz 1. 2+ 8. 5... 10. 8 \7i ft 

1891.88 352.8 1.36 8.2... 12.3 in ft 

1898.66 348.5 1.43 8.0... 12.0 \n Cg 

Discovered with the 6-inch on Mt. Hamilton in 
1879. 

[/3 (XI)... iS^...^ (3ii4)...(3 {Pub. L. O. I, ii)...Cogshall 
( )...] 

P 77. S.D.(2°)578o 

R.A. 22'^ 27™ 50= \ 
Dec!. — 2° 24' \ 

.\ and B 

o /( 

1876.05 213.0 2.65 9. 5... 10. 3 3;/ J 

1879.58 213.8 2.62 8.5... 9.0 I// Cin 
1885.82 213.3 2.65 8.0... 9.5 in \V 
1886.81 212.0 2.71 8.1... 8.7 4// LM 
1888.72 212.4 2.46 8.2... 9.3 2;/ Lv 
1888.75 213.3 2.77 8.5... 8.7 2>n ft 
1890. 78 21 1.5 2.88 9. 5... 10. 3 3« T 
1892.63 209.6 2.75 ... 2n T 

1898.59 211. 1 2.61 8.8... 9.5 4// D 

1898.62 215.0 2.75 ... I// Cg 

1598.63 214.0 2.71 S.o... 8.5 2// Bd 



248 



General Catalogue of Double Stars 







A ar 


id C 








1888.75 




225.6 


2 8!'8o 




. . I I.O 


yi 


18 


1898.59 


224.4 


28.58 




. .10.8 


An 


D 


1898.62 


226.0 


28.23 






\n 


Cg 


1898.63 


225.1 


28.33 




. . 10 


2U 


Bd 



Discovered with the 6-inch. No sensible change. 
This is 12' .f of 60 Aquarii. 

[(3 (i). . ./3 {Mon. Not. XXXIII, 351). . .(3 (2875). . ./3 {Pub. L. 
O. II)... zl (i)...Cin5... Wilson (Cin'°). . .LM . . .Lv'. . . 
Tarrant (3186). . .Boothroyd and Cogshall ( ). . . Doo- 
little {Pub. Flower Obsy. l). . .] 



P 705- Lalande 44111 



R.A. 22'' 28™ 18= 
Decl. + 40° 12' 



1878.53 158.0 
1885.64 



i.5± 7-O...I2.5 \n ^ 

Single 211 H2 



Discovered with the iSj^-inch. A dii^cult ob- 
ject with that aperture. I could not see it on one 
night in 1898 with the 40-inch. It should be 
watched with large instruments. 

[^(x)...^'...HS( )...] 



P 707- Lalande 44138 



R.A. 22'' 28" 46= 
Decl. +38° 43' 



1878.47 46.6 1.86 8.0... 12. 5 \n ^ 

1899-55 52-5 1-45 8.5. . .12.0 . i« /3 

Discovered with the 18}^ -inch. 
[^(x).../3'...] 



P 706. D.M. (67°) 1450 



1877.55 i8-i 

1881.63 16.9 
1891.88 II. 8 

1898.64 17.2 



R.A. 22'' 


29"' 30^ 


\ 






Decl. -f 67° 53' 


s 






A and B 








2-3 


8.0. 


. .11.8 


\)i 


^ 


2.79 


7.9. 


• .12.5 


m 


^ 


2.30 


8.1. 


..12.7 


2;' 


/8 


2.66 


7-7- 


..10.7 


211 


^ 







A anc 


C 













II 










1877-55 


253-5 


28.5 




. . 10. 


m 


^ 


1881.67 


235-8 


29.17 




. . 1 1.0 


2 71 


/8 


1891.88 


252.9 


29-95 




. .11.7 


2« 


^ 


1898.64 


252.9 


29-77 




. . 10.2 


2n 


/8 



Discovered with the i8j^-inch. The angle of 
AC in my measures of 1881 is undoubtedly an 
error in printing, and should be 255?8, but I have 
not the original record to refer to. ^ 708 is 
closely /. 
[/3 (x). . .(3-. . .;84. . .(3 (3114). . .^ {Pub. L. O.U)...] 

P 708. D.M. (67 = ) 1451 



R.A. 22'' 30™ 42= 
Decl. + 67° S3' 



877-55 


288.6 


8±: 


9.0.. 


.11.5 


i« 


P 


892.78 


289.6 


8.78 


9.0. 


. 12.0 


in 


W 


898.63 


288.4 


8.56 


8.7. 


. 12.0 


2/1 


/8 



Discovered with the 18^-inch. /3 706 is in the 
field/. 

[/3 (x)...i3'... Wilson ( )...] 

P 175. D.M. (74 = ) 970 



R.A. 22*' 29"^ 49= 
Decl. -|- 74° 24' 



1875-65 
1893.82 



1-44 
1.58 



10.3 . . . 10.0 3« 
10. o. . . 10. o 3« 



138.9 
138.4 

Discovered with the 6-inch, 
[^(iii). . ./3(iJ/£)«.yVo/'. XXXIV, 59). . .6 (i). . .Wilson 



W 







P 771- 


cr 


^ Grnis 










R.A. 22'' 


29 


m ^8S 

° 13' \ 










Decl. — 


41 






1879.64 



270. ± 


i-3± 




6.0. . . 10.5 




/S 


1891.82 


259.1 


2.22 






2n 


Sel 


1891.87 


263.1 


2.46 




6.7.. .13.0 


yi 


^ 


1897.04 


265.1 


2.38 




7.0. ..12.5 


y 


See 



Discovered with the 6-inch at Mt. Hamilton in 
1879. The Cape Catalogue gives this star a proper 
motion of o;'o96 in the direction of 339?4. The 
Cordoba magnitude is 6.0. 

[/3 (XI). . ./3^ . ./3(3ii4). . .^{PHb. L. O. i, 11). . .Sailors (3154) 
...See (3496)...] 



Discovered from iSji to t8qq by S. W. Burn ham 



249 





p 


1092. Radcliffe 5777 










R.A. 22'' 33"" 3^^ ) 
Decl. + 72° is' ) 










A and B 






1889.30 
1899.71 




237-1 
229.5 


0-32 7-5 • - - 7-5 
0.14 ■]+. . . 7 + 


2n 


13 
A 



ABand C (= H 3133) 



1830 272.0 

1889.31 264.0 

1898.71 263.6 

1898.77 263.2 



I2± 
29.19 

30-35 
30-07 



8.5. ..13 

... 12.2 
7.2. . . 12.3 
7.0 . . . 10.8 



3" 
1)1 



A 



AB and D (= H - V. 94) 



1783.20 
1830 

1875-13 
1883.18 
1889.31 
1898.66 

1898.77 



135-2 
40 

137 
137 
137 

137 
137 



41.67 
30 ±. 
42.18 
42.19 
42.17 
42.42 
41.97 



8.5 
7-0 
7-0 
7-2 
7-2 





i>i 


H' 


5 


in 


H^ 


7 


yi 


J 


.6 


5« 


Fr 


2 


3« 


/8 


2 


2.} I 


A 





\ii 


/8 



The close pair was discovered with the 36-inch. 
The wide pair is evidently unchanged. This is, 
H ' V. 94 ^ H 3133 = 02 (App.) 236. There is 
an error of 90° in the angle of D as given by Her- 
SCHEL II in his Fifth Catalogue. There is also an 
error of 7™ R.A. and 29' Decl. in the place of this 
star, as given by Herschel I. The foregoing are 
all the measures of the distant companions. D is 
Radcliffe 5779. The very recent measures of AB 
by AiTKEN with the 36-inch (power 1900) show 
decided change in angle and distance. It is prob- 
ably in rapid motion. 

[/3 (XV)... (3 (2929)... i3 (Pub. L. 0. II)... Franz (2650). ..A 
(l). ..Aitken ( ). . .] 





p 


277. Lalande 44 


348 










R.A. 22'> 34"" 145 ) 
Decl. +40° 45' \ 








1875-35 


199.4 


11 
0.50 


8.2.. 


. 8.4 


2;/ 


J 


1879.46 


199-3 


0.59 


8.0.. 


- 8.3 


I /I 


/8 


1882.68 


168.5 


0.55 


8.2. . 


. 8.4 


III 


Perry 


1893-54 


201.9 


0.49 


8.0.. 


. 8.4 


in 


Lv 


1893.65 


204.6 


0.58 


8.2. . 


. 8.4 


3^' 


\V 



Discovered with the 6-inch. Very little, if any, 
change. A faint star about 30" distant. It is the 
p star of a wide pair. 

[/3fv).../3 {Mon.Not. xxxv, 31). . ./33. . . /) (i). . .Perry (.£«g-. 
Mech. xxxvi, 65)... Lv (/?./. 382) .. .Wilson ( )...] 



P 480. W- XXIi. 716 

R.A. 22'' 35"" 18^ (I 
Decl. + 4" 6' f 

o ;/ 

1877.51 65.6 0.86 9.0... 9.8 yi J 
1891.56 63.5 0.80 8.9... 9.2 yt (i 

Discovered with the 6-inch. So far unchanged. 

[/3 (IX). . .(3 [Mon. Not. xxxviii, 78). . ./3 (3114). . ./3 {Pub. L. 
O. II). ..J (I)...] 



P 1265. D.M. (60 = ) 2425 

R.A. 22'' 35" 18= ) 
Decl. + 60"' 47' S 

B and C 



1891.58 251.4 
1898.79 251.2 



0.56 
0.56 



9-1 

9-7 



A and BC 



1891.58 346.3 39.69 8.8. 
1898.79 346.7 39.76 9.0. 



9.2 yi ^ 
9.7 yi A 



3" 13 
yi A 



Discovered with the 36-inch. So far without 
sensible change. 
[/3(xviii)...^(3ii3)...^(^«<^. Z. O. II)... Aitken ( )...] 

P 709. S.D. (4 = ) 5487 







R.A. 22^ 


35" 26^ 










Decl. — 


3° n' i 






IS78.I7 



8.9 


2.04 


8-5 -■ 


9-7 


3" /8 


1886.79 


6.0 


2-13 


8.2. . 


9.0 


211 LM 


1888.89 


5-1 


1-50 


8.3-- 


9-5 


I // Lv 


1893.71 


14. 1 


i.6dz 


Q.I. . 


9.6 


2f! Gl 


1896.81 


5-4 


2.04 


8.3- ■ 


9-4 


yi Lv 


1898.64 


6.0 


1-99 


S.O.. 


8-7 


3" Cg 


Discovered wi 


th the iS 


'_;-inch. 


App 


arently un 


chanijed. 













[/9 (x) . . ./3' . . . LM . . . Lv' . . . Lv (.-/. J. 407) . . . Glasenapp (Ul) 
...Cogshall( )...] 



250 



General Catalogue of Double Stars 



P 845. O. Arg. N. 24536 



R.A. 22"^ 36™ 27= 
Decl. +67° S3' 



1881.53 195.4 
1888.06 197. 1 
1892.92 195.3 



1881.54 9.1 

1887.79 1 1-9 
1892.92 12.0 



A and B 








5^69 8.2. 


.12.1 


VI 


^ 


6.13 8.5. 


.11.9 


y 


Com 


6.02 8.0. 


.11.5 


\n 


W 


A and C 








// 
5-5° 


.13.2 


211 


y8 


5-38 


.11.7 


yi 


Com 


5-39 


. 12.0 


\n 


W 



Discovered with tlie i5^-incli at the Washburn 
Observatory. 

[j3(xii). . .(S*. . .Comstock {Pub. Washburn Obsy. vi). . .Wilson 
( )...] 



P 710. D.M. (28°) 4439 



8.6 







R.A. 22'^ 36 


"57= 


1 






Decl. -|- 29 


° 5' 


1878.66 




231.2 


0-59 


8.5 




1889.89 


232.5 


o.4z!r 






1891.76 


235-3 


0-39 


8.3 




1895.81 


232.3 


0-43 






1897.76 


237.8 


0.47 






1898.64 


239-3 


0.32 


8.8 




1898.67 


235-1 


0-39 







\n 


/3 


9« 


Sp 


2« 


/8 


in 


Lew 


\n 


Lew 


3« 


A 


yi 


Lew 



8.5 



8.8 



Discovered with the 18^-inch. There is little 
change in the angle, but the distance is less, and it 
is probably a binary. It is about 30' s oiy] Pegasi. 

[|3 (x).../3'...;3 (3114) {Pub. L. O. II)... Sp (in)... Lewis 
{Mon. Not. LVI, 359; LIX, 400) {Greenwich Obsns. 1895) 
...Aitken (3585)... Lewis ( )...] 



P 176. D.M. (38°) 4848 







R.A. 22!^ 


37 


™ 5= [ 












Decl. + 38 


° 40' i 








1877.78 




42.0 


// 
2.50 




8.7.. 


. 9.0 


in 


fi 


1878.18 


39-7 


1.89 




8.8.. 


- 9-3 


Zn 


J 


1883.69 


49-3 


1.84 




8.9.. 


- 9-9 


5" 


En 


1892.73 


41.9 


2.21 




9.0.. 


- 9.3 


in 


W 


1899.13 


43-2 


2.26 




8.8.. 


. 9.1 


4n 


D 



Discovered with the 6-inch. 
478) is i'" 35'/and 10' «. 



2 2942 (— 02 



(lll).../3 {Mon. Not. XXXIV, 59). . .^3'. . .Zl (i)...Engel- 
mann (2678). . .Wilson ( ). . . Doolittle {Pub. Flower 
Obsy. I)...] 



P 1 144. T) Pegasi 



890 
892 

893 
894 
897 







R.A. 


22h 


37"" 23= 






Decl 


+ 

B an 


29° 36' 
d C 









/ 




53 


83.3 





29 


10. 1 . 


23 


63-9 





3± 




13 


62.0 





'3± 




73 


77-3 





-3± 




06 


82.3 





?>?> 




76 


82.9 





24 




63 


81.6 





28 


9-3- 


67 


90.0 





36 





9-3 

A and BC (= H' VI. 21 = S 816) 

4 



A" 


13 


izn 


Sp 


4« 


Sp 


m 


W 


9« 


Bar 


m 


Lew 


4" 


A 


3« 


Lew 



1824.85 338.9 


89.82 


1889.53 339-0 


90.38 


1893-73 339-0 


■ 90.25 


1897.76 339-1 


90.42 


1898.60 338.6 


91.04 



15 2« 


S 


4« 


/? 


m 


w 


2« 


Bar 


2« 


A 



The close pair was discovered with the 36-inch. 
The measures show no change. The wide pair was 
first noted by H", but not measured. The only 
measures preceding my own are those of South in 
1824. The principal star has a proper motion of 
0^038 in the direction of i83?9 (Auwers). 

[/3 (XVI)... iS (2956)...i3(7W'. Z. O. 11)... Sp (iii) .. .Wilson 
( )... Barnard {A./. 447)... Lewis {Mott. Not nx, 
400). . .Aitken (3585). . .Barnard ( ). . .] 



P 450. B.A.C. 7931 



R.A. 22^ 38™ 40' 
Decl. + 38° 50' 







A an 


d C 








1876.79 




232.0 


;/ 

10 23 


7.0. 


. 12 


m 


/3 


1878.13 


232.4 


10.93 


• 


. 12 


2)1 


/8 


1879.47 


233-4 


11.08 


• 


.12.5 


m 


/8 


1893-53 


231.8 


10.86 


. 


.12.5 


in 


Lv 



Discovered from iSyr to i8gg by S. W. Burnham 



2SI 



A and B (= S 2942) 

O II 

1831.61 282.1 2.66 7.0... 9.2 4// 2 

1869.52 280.3 2.83 6.2... 8.5 6;/ J 

1878.97 280.2 2.68 6.8... 8.5 2« ^ 

1883.21 282.0 3.04 6.8... 9.6 dn En 

1895.91 ^11-'^ 2.85 ... 2« Maw 

The small star was noted with the 18^ -inch. 
There is no change in AB ( = 2 2942 = H 1802 
= 0% 478). Only a few of the measures are given. 

[/3(v]ii). ..^{Am.Jour. Sci. July 1877). . ./3'. ../33. ..Lv{/5(./. 

382). . .Madler {Fixstern-Systeme l) (Dorpat Obsns.Xl) . . . 

Dawes {Mem. R. A. S. xx.xv) . . . Obsns. at Barclay's Obsy. I 
...OS {Poulkowa Obsns. ix)...zl (11)... J (1736,1979) 
. . .Wilson and Seabroke {Mem. R. A. S. .XLIl). . . Bigour- 

dan {Paris Obsns. 1883). . . Engelniann (2678). . . Glase- 

napp (hi). . .Maw {Mem. A'. A. S. Llll). . .] 



P 711- D.M. (10°) 4812 









R.A. 22" 


39"" 29^^ 


( 










Decl. + 


10° 34' 






1878.59 




79-9 


0.72 


8.5. 


. .10.5 


171 


/? 


I89I 


88 


55-3 


0.83 


9.0. 


• • 9-9 


yi 


^ 


1893 


70 


53-4 


1.24 


9-5- 


• -10.5 


lU 


W 


1897 


76 


46.4 


0.72 






\n 


Bow 


1897 


83 


46.6 


0.96 


10 . 


..II 


\n 


Br 


1898 


73 


42.7 


1. 00 






\n 


Bow 


1898 


74 


47.6 


0.99 






yi 


A 


1898 


79 


45-1 


1. 00 






ifi 


Bry 


1898 


89 


39-8 


0.82 






m 


Lew 



Discovered with the 18^ -inch. There is con- 
siderable angular motion, an unusual condition in 
a pair of stars of this magnitude, and suggesting 
comparative nearness. The magnitude in D.M. is 
9.1. It is 27^/ a 7 m star. 

[p{x)...p\..p (3114.../3 (/>«/-. Z. 0. II)... Wilson ( )... 
Aitken (3585). . .Lewis, Bow^'er and Bryant {Mon. Not. 
LIX, 400) . . . Brown ( ) . . • ] 

P 1037. W' XXII. 854 

R.A. 22'> 41™ 56^ \ 
Decl. + 12" 22' \ 

1888.81 2 24°4 o'.'66 8. 7... 1 0.8 ^,n (i 

1899.52 215.2 0.72 8. 9... II. 5 i« A 

Discovered with the 36-incii. The / star of a 
wide pair. Change in angle ? 
[^ (xiv)...i3 (287s)... /3 (/'„b.L. O. ii)....\itken ( )...] 



P 1219. S.D. (ir)S93i 

R.A. 22l" 42"' 27^ } 

Decl. — n' 42' ^ 

o // 

1890.82 307.9 0.54 8.7... 9.4 3« 13 

1896.87 299.3 °-48 • • • 3" A 

Discovered with the 12-inch ; a difficult pair with 
that aperture. There is a 6" pair /i/> 5'. 

[/3 (xvii). . ./3 (3047). . ./3 (Pub. L. 0. 11). . .Aitken (3466). . .] 

P 1 145. O. Arg. N. 24690 

R..A.. 22'' 42" 45^ } 
. Decl. 4-57' 55' S 

A and B 
1889.59 153-0 1-03 8.2..,ii.o 3« /? 

1898.88 156.3 1.06 8.0... II. 2 2« A 



A and C 



1889.59 179-5 21.99 
1898.82 179.7 22.27 



... 9-5 3« /3 
. . . 1 0.0 3« A 



Discovered with the 36-inch. 
[/3 (XVI)... /3 (2956)...^ (P^iJ.Z. O. II)... Aitken (3585)---] 

P 1 146. \V= XXII. 971 

R.A. 22'' 42™ 49^ I 
Decl. + 30° 28' \ 

1889.55 335.3 0.23 7.2... 8.2 yi p 
1897.80 331. 1 0.15 ... ifi Lew 

1899.56 313.6 0.18 7.6... 8.0 4>i A 

Discovered with the 36-inch. Change in angle 
is probable. 

[jS (xvi). . ./3 (2956). . .p {Pub. L. O. u). . .Lewis {Mon. Not. 
LIX, 400). . .Aitken ( ).••] 

P 846. Lalande 44688 

R.A. 22>> 44"' 34^ \ 
Decl. +23° 54' { 

1881.57 93.4 1-73 8.6... 12. 2 3// ^ 
1886.84 94-8 2. II ... 3" ^^ 
1888.82 92.2 1.67 8. 2... 12. 3 3// Com 

Discovered with the i5>4-inch at the Washburn 
Observatory. 

[|3 (xil). . .|3*. . .Updegraff, Lamb and Comstock {Pub. Wash 
burn Obsy. v, vi). . .] 



252 



General Catalogiie of Double Stars 



P 177- O. Arg. S. 22454 



R.A. 22^ 45" 55= 
Decl. — 22° 21 ' 



1867.86 


276.6 


3-07 


9 - • 


- 9 


m 


Hd 


1876.51 


278.7 


2.63 


7-5- ■ 


. 8.0 


yi 


Cin 


1877.71 


278.6 


2.78 


8.0. . 


. 8.0 


2)1 


Cin 


1892.70 


278.6 


2-94 


8.2.. 


. 8.2 


211 


W 


1893.84 


276.1 


2-55 


8 . . 


. 8 


211 


Sel 


1898.68 


276.4 


2.79 


8.0. . 


. 8.1 


yi 


Bd 



Discovered with the 6 -inch. Without change. 

[j3 (hi). . .p {Man. Not. xxxiv, 59). . .Annals Harvard Obsy. 
XIII. . .Cin3. . .Cin". . .Sellers (3240). . .Wilson ( )... 
Boothroyd ( ). . .] 



1888.71 128.5 
1898.61 130.6 
1899.55 131-1 



451- 


15 


Lacertae 






R.A. 22^ 

Decl. + 


46- 37' \ 
42° 40' \ 






// 
29.60 




5 ...12.0 


yi 


/8 


29.24 




5.4. . . 9.6 


4" 


D 


28.84 




...12.5 


271 


y8 



Discovered with the 18^-inch. This star has a 
proper motion of ofogy in the direction of 85?9 

(AUWERS). 

[/3 (viii). . .j3 {Am. Jour. Sci. July 1877). . .(3 (2875). . -^ {P'^b. 
L. O. II). . .Doolittle (Pub. Flo-ver Obsy. l). . . ] 





p 


382. B.A.C. 7983 












R.A. 22" 


48 


y, \ 












Decl. + 


44 












A and B 








1876.39 


205.7 


// 
1.07 




6.0... 


8.0 


1" 


A 


1881.70 


210. 1 


1.09 




6.9... 


8.5 


yi 


yS 


1882.68 


219.0 


1-13 




6 ... 


8 


in 


Perry 


1883.74 


217. 1 


^■iZ 




6.T.. . 


8.0 


6« 


En 


1885.64 


210.3 


I. II 








211 


H2 


1889.44 


219.3 


1.03 








2)1 


Maw 


1889.53 


217.6 


0.98 




7 3 • - - 


8.8 


3« 


/3 


1893-53 


221.3 


0.91 




62... 


8.0 


VI 


Lv 


1893.97 


226.0 


1. 00 








%>i 


Bar 


1893.99 


223-5 


0.87 








9' 


Sp 


1896.56 


223.8 


0-73 








111 


Lew 


1897.82 


225.7 


0.97 








171 


Dy 


1897.86 


221.2 


1.07 








yt 


A 


1897.96 


225.1 


0.64 








171 


Bow 


1898.00 


228.9 


1.06 








111 


Maw 



350-4 


20± 


353-6 


26.43 


353-8 


27.01 


357-0 


27.78 


354-3 


26.85 


353-7 


26.92 


354-4 


27.18 



1 1 


171 


H^ 


10.7 


3« 


A 


10.7 


3« 


/s 




171 


Perry 




171 


H2 


10. 


2 71 


/8 




171 


Maw 



AB and C (= H 182^ 

o // 

1828 350.4 20± 6-7 

1876.24 

1881.70 

1882.68 

1885.68 354. 

1889.53 

1898.02 

The close pair was discovered with the 6-inch. 
This is a binary in direct angular motion. A 
naked-eye star in Lacerta; the Harvard photometric 
magnitude is 5.7. The distant companion discov- 
ered by Herschel is evidently fixed. It is called 
blue by A. All the measures of this star are given. 
The principal star is Groombridge 3918. 

[;8(vi)...^ (2062,2957)... i3'i...i3 {Pub. L. O. II)... J (I)... 
Perry {Eng. Mech. xxxvi, 65). . .Engelmann (2678)... 
Maw {Mem. R. A. 5. L). . .Lv {A.J. 382). . .Barnard {A. 
/. 447)...Sp (ill). . .Aitken (^./. 429) .. .Lewis, Dyson 
and Bowyer {Mon. Not. Lix, 400)... HS ( )...Maw 
{Mem. R. A. S. Liii) . . . ] 





p 


347. W 


= XXIL 1103 








■« 


R.A. 22h 


48- 45' / 
19° 42' \ 












Decl. + 








1881.64 



37-4 


6-39 


8.5-- 


9.2 


3« 


P 


1883.79 


37-5 


6.51 


8-5.-- 


9-7 


Sn 


En 


1886.85 


36-4 


6.69 






471 


UL 


1887.82 


36.0 


6-75 


8.3... 


9.2 


3« 


Com 


1891.88 


35-5 


6.41 


8.6. .. 


10.7 


171 


/3 



Discovered with the 15 5-4 -inch at the Washburn 
Observatory. 

[^ (xil)...^t...j3 (3ii4)...j3 {Pub. L. 0. 11) . . .Updegraff, 
Lamb and Comstock {Pub. Washburn Obsy. v, vi)... 
Engelmann (2678). . .] 





p 


178. Aquarii 2 


52 










R.A. 22'> 


48™ 57' \ 












Decl. — 


5° 38' i 








1875-37 




324.6 


Ciiii 


6.0. . 


8.0 


3'^ 


A 


1877.84 


326.1 




6.2. . 


8.2 


2// 


Cin 


1879-58 


319.0 


0.78 


6.0. . 


8.0 


171 


Cin 


1884.87 


321-5 


0.68 


6.0. . 


9.0 


17/ 


Ho 


1886.77 


322.1 


0.86 


6.0. . 


8-5 


3'' 


LM 


1888.87 


322.2 


0.70 


6.0. . 


8.0 


2 71 


Lv 


1889.47 


320.4 


0-59 






471 


Sp 


1890.78 


321-3 


0.80 


6.0. . 


8.0 


21! 


T 


1898.66 


324-5 


0-79 


6.5.- 


9.0 


171 


Cg 



Discovered from iSyi to i8gg by S. W. Burnham 



253 



Discovered with the 6-inch. The change, if any, 
is slow, but it can hardly fail to prove a binary. 
This is a naked-eye star in Aquarius. The Har 
vard photometric magnitude is 5.8. This star is 
B.A.C. 7986 (= Piazzi xxii. 250). 

[)3 (in)...i3 {Mon. Not. xxxiv, 59)...^ (i). . .Cin". . .CinS. . . 
Hough (2978)...LM...Lv'...Sp (lIl). . .Tarrant (3186) 
...Cogshall( )...] 



P lOIO. Lalande 44832 







R.A. 22'' 
Decl. — 


49 
6 


„ ,7s , 
° 13' S 








1881.85 


i36°5 


// 
1.21 




8.5--. 


8.9 


211 


/8 


1886.55 




1.28 




9.0.. . 


9.2 


\n 


LM 


1892.89 


134.8 


1.28 




8.7... 


9.0 


m 


Ho 


1899.72 


136.8 


i.i I 




8.8. .. 


9-3 


21! 


D 



A and C 



Discovered with the 12-inch at Mt. Hamilton in 
1881. 

[/3 (xill) .../33. .. LM ... Hough (3234) . . . Doolittle (Pub. 
Flower Obsy. l) . . . ] 

P 772. 8 Piscis All St rails 







R.A. 22^ 


49 


" 18= 


( 










Decl. — 


33 


° 11' 






1877.70 


236.5 


4-73 




5-0. 


..10.5 


\n 


Cin 


1879.69 


238.4 


5± 




5-5- 


. . 12.2 


S" 


i3 


I88I.S4 


235-8 


4.91 




5-0- 


. . I I.O 


5» 


/8 


1891.88 


239-7 


4-78 




5-0- 


..11.8 


yi 


/3 


1896.7 I 


235-6 


5-M 








2n 


See 


1898.64 


236.9 


5.21 




3.8. 


. . 1 1.0 


3« 


Cg 



Discovered with the 6-inch at Mt. Hamilton. 
There seems to be no material change. The Cape 
Catalogue gives the large star a proper motion of 
ofog in the direction of 360°. 



[(8 (xi)...j3=.../33...^ (3ll4).../3 {l^ub. L. O. 11). 
See (3496)... Cog.'^halK )...] 



P 383- Lalande 44855 



.Cin4... 



1877.82 iig.6 
1891.80 I 18.7 



R.A. 22'' 49™ 57^ ) 








Decl. + 8= 49' \ 








A and B 








2"67 8.0. . 


. 1 1.0 


lU 


(3 


2.58 8.0. . 


.12.7 


y 


li 



1877.81 240.3 15.59 
1891.80 239.0 15.43 



2;/ /3 
..12.4 yi f3 



The distant star, C, was discovered with the 
6-inch, and B added subsequently with the 18^- 
inch. 

[/3 (vi).../3 (2062,3114)... /3'.../3 [Pub. L. 0. \\)...\ 



P 848. D.M. (57') 2639 



R.A. 22"^ 49" 58= 
Decl. -f 57° 44' 



1881.67 


5-8 


2.77 


8.4. 


.12.8 


y 


13 


1888.94 


0.4 


2-35 


8.3- 


.12.3 


3« 


Cora 


1895.84 


358.9 


2.64 






2)1 


Com 


1896.66 


2.4 


2.50 


. 




\n 


Com 


1898.82 


359-6 


2.80 


8.5- 


.12.5 


ifi 


A 



Discovered with the 151^ -inch at the Washburn 
Observatory. 

[|8 (xil). . .^-t. . .Comstock (Sid. Mess ix, 77) (Pub. Washburn 
Obsy. VI, x) . . . Aitken ( ) . . . ] 



P 712. D.M. (58°) 2508 

R.A. 22'' 49'" 58= / 
Decl. + 58° 36' \ 

O It 

1877.58 291.6 

1877.70 290.3 
1893.72 293.5 
1899.66 288.7 

Discovered with the 18)^ -inch. In a small 
cluster. 

[j3 (x). . .^'. . .zl (i). . .Wilson ( ).. .Doolittle (Pub. F/owet 
Obsy. I)...] 



1.02 


9.0. 


- 9-5 


IV 


ii 


1. 14 


9.7. 


. 10.2 


If! 


J 


1.24 


9-5- 


. 10. 1 


y 


w 


0.94 


9.0. 


. lO.O 


\!l 


D 



P 713- Lalande 44872 

R.A. 22" 50™ 55^ \ 
Decl. - 3° 53' \ 



B and C 



187795 95-9 8.31 
1891.82 94.1 10.18 
1S98.54 95.9 10.51 



12.: 



--'3-3 y (3 

..12.5 2« yS 



254 



General Catalogue of Double Stars 



A and B (= H ' N. 15 = 2 2959) 



1832.10 


96.7 


15.66 


6.5- 


- - -10.5 


A>i 


2 


1864.78 


102.7 


14.21 


6.5. 


..10.7 


S>^ 


J 


1877.87 


102.2 


13 77 






211 


a 


1891.82 


103-3 


-^l-l^ 




..10.7 


V 


^ 


1898.54 


105-7 


13-13 




.- 9-7 


2)1 


/3 



The faint star, C, was detected with the iSj4- 
inch. The change in AB is obviously due to 
proper motion, and curiously this movement seems 
to belons:, not to the larsce star, but to the small 
star B. The measures of 1832 and 1898 give for 
the apparent movement of B, o!o5i in the direction 
of 239?4, and this substantially accounts for the 
change in BC. A few of the measures of AB are 
given above. 
[i3 (x) . . . (3' . . . (3 (31 14) . . ./3 [Piii. L.O.u)... Madler {Fixsteni- 

Sysiemel) (Dorpat Obsns. XI, XIII ). . .A (ll) . . . Zl (1573) . . . 

Pritchett [Pub. Morrison Obsy. l). . .Cin^. . .Hall (11). . . 

Glasenapp (11). . .Sola (3497). . .] 



P 849. O. Arg. N. 24920 

R.A. 22^ 51'" 47S 
Decl. +66° II' 

12.3 4« ^ 
1 1.9 4/2 Com 

Discovered with the i5j4-inch at the Washburn 
Observatory. 
[/3 (xil). . .i34. . .Comstock {^Pub. Washburn Obsy. vi). . .] 



1881.53 


127.0 


3-74 


8.4- 


1888.39 


128.0 


4-15 


8.2. 



P 452. Lalande 4491 5 







R.A. 22^ 


51 


m ^gs 


\ 










Decl. + 


42 


° 22' 






1877.71 


2 55-3 


;/ 
6.29 




7-0 


. . 12.0 


in 


J 


1880.71 


256.6 


6-74 




7.0. 


. . I I.I 


211 


iS 


1885.64 


254-9 


6.67 








2 71 


HS 


1892.84 


256.2 


6.78 




7-0. 


..II. 5 


211 


W 



Discovered with the i8j^-inch. 
[/3 (viii) . . .^{Am./our. Set. July 1877). . .(3^ . . J (i) 
( )..-HS( )...] 



P 850. Lalande 44985 

R.A. 22'^ 54"" 22= 
Decl. + 13° 13' 



.Wilson 



1881.57 
1886.84 
1888.03 



119.8 
118. 1 
1 19. 1 



3-05 
3.08 

3-29 



10.6 



3" 


li 


yi 


UL 


3« 


Com 



Discovered with the 15 5^ -inch at the Washburn 
Observatory. 

[/3 (xil). . .(3^. . . Updegraff, Lamb and Comstock {Pub. Wash- 
burn Obsy. v, VI). . . ] 



P 179- O. Arg. S. 22553 



1878.10 115. 7 

1892.70 116. 9 

1892.75 114. 7 

1896.84 115. 3 

An unimportant pair noted with the 6-inch. 
KusTNER gives the principal star a proper motion 
of 0^09 in the direction of 180". 

[/3 (ill). . .(3 (Mon. Not. xxxiv, 59). . .Cin3.. .Cm". . .CinS... 
Wilson ( ). . .See (3496). . .Glasenapp (11). . .] 



R.A. 22" 


54 


m 26^ ) 








Decl. — 


22 


°54M 








13-35 




8.4.. 


. 9.2 


i" 


Cin 


13.26 




8.5.. 


■ 9-5 


211 


W 


12.74 




8.2. . 


- 9-4 


211 


Gl 


13-65 




7.9. . 


- 9-3 


2)1 


See 



P lOII. Lacaille 9343 



R.A. 22^ ss"- 535 
Decl. —37° 4' 



1881.85 


301-7 


2.16 


7.2. 


. 10.5 


3« 


^ 


1886.95 


301.2 


2.26 


7.0. 


. 10. 


1)1 


Pol 


I89I.8I 


293.0 


1-94 


7.0. 


. 10. 


\n 


Sel 


1896.72 


291.5 


1. 61 


6-3- 


. 8.2 


4)2 


See 


1898.73 


297.4 


2.14 


7.0.. 


. I I.O 


1)1 


Bd 


1898.74 


300.9 


2.28 


7.0.. 


. 10. 


3« 


A 



Discovered with the 12-inch at Mt. Hamilton in 
1881. Apparently fixed. The Cordoba magnitude 
is 6.6 ; Yarnall 6.4. 

[/3 (xili). . .(33. . .Pollock {Pub. Sydney Obsy. 1891) {Mem. P. 
A. S. l)... Sellers (3154)... See (3496) . . . Boothroyd 
( )...Aitken(3S8s)...] 



P 384. Aqiiarii 265 







R 


A. 22'' 


56 


^ It I 












Decl. — 


19 


" 10' \ 








1876.78 




75-0 




// 
1.08 




7.0.. . 


9.0 


1)1 


Cin 


1877.14 


72.2 




1.27 




7.2.. . 


9-2 


3" 


J 


1877-63 


72.4 




1.23 




6.7... 


9.0 


2)1 


Cin 


1886.81 


70.4 




1.27 




6.8. .. 


8.8 


1)1 


LM 


1888.85 


73-4 




1.03 




7.0.. . 


9-4 


111 


Lv 


1897.66 


69.1 




1-37 




6.0. . . 


9.2 


1)1 


See 


1898.68 


66.7 




1.32 




7.7... 


9-5 


2)1 


Bd 



Discovered from iSji to i8gg by S. W. Burnham 



255 



Discovered with the 6-inch. In Gould 6.9 m. 
Lalande 45047. 

[/3 (vi). . .(3 (2062). . .J (l). . .Cin3. . .Cin". . .LM. . .Lv'. . . 
See (3496) . . . Boothroyd ( ) . . . ] 



P 481. W XXII. 1 1 62 

R.A. 22'' 56" 23= / 
Decl. — 11° S3' ( 

O II 

1878.19 51.8 1.30 9.0... 9.5 211 /8 

1886.74 54.9 .... 9. 5... 10. 5 1)1 LM 
1891.88 53.1 1. 19 9.1... 9.6 3« /3 

1898.76 51.7 1. 31 9.7...10.0 3« Cg 

Discovered with the 6-inch. S 2970 is iT P 
and 4' s. 

[^ {ix)...;8 {Mon. Not. XXXVIII, 78). . ./S'. . ./3 (3114)...^ 
{Pub. Z. C. II) . . . LM . . . Cogshall ( ) . . . ] 



P 1 147. 2 Andromedae 



R.A. 22*^ 57'" 5= 







Decl. + 42 


° r 













// 










1889.54 


317.8 


0.28 


5-0- 


. 8.7 


yi 


^ 


1890.62 


313-0 


0.27 


5-2. 


. 9.0 


3« 


y8 


1891.72 


323-4 


0.23 


5-7- 


. 8.5 


3« 


/3 


1892.99 


318.2 


o.40±: 






3« 


Sp 


1893.46 


323-9 


0.50 + 






2n 


Sp 


1896.03 


322.0 


0.42 + 






\n 


Sp 


1898.79 


329.6 


0.36 






211 


A 



This star was suspected to be a close pair with 
the 12-inch, and verified with the 36-inch. It is 
difficult with the large aperture. Auwers gives the 
proper motion of 2 Andromedae, of 041 in the direc- 
tion of i09?8. This belongs to both stars. It is a 
physical system, and should be in rapid motion. 

[/3(xvi)...j3 (2956,3048,3114). . .(3 {Piih. L. O. II)... Sp (in) 
...Aitken(358s)...] 



P 851. O. Arg. N. 25054 







R.A. 22'' 57"' 36s 






Decl. 4" 75° 29' 


1881.67 


i58°o 


1.69 7.5 


1885.58 


'57-0 


2.02 


1888.92 


160.4 


2.14 7-3 



13.0 



13.0 



211 112 
3« Com 



Discovered with the 15%-inch at the Washburn 
Observatory. 

[/3 (xil). . ./3f . .Comstock {Pub. Washbiirn Obsy. vi)...HS 

P 773. u Gruis 

R.A. 23^ 0"" 12= \ 
Decl. — 39' 32' \ 

This star was suspected to be a close pair with 
the 6-inch at Mt. Hamilton in 1879. With the 12- 
inch in 189 1 I could not be certain of anv real 
elongation. It should receive further attention in 
southern latitudes. 

[/3(xi)...^^..] 





P 


1025. Lalande 45242 










R.A. 22'^ i"> 38' I 










Decl. +12° 1' \ 










A and B 






1891.57 


268^6 


0.77 8.0. . . 10.8 


yi 


/? 


1897.82 


271.4 


■ 0.88 


yi 


A 


1898.61 


273.1 


0.82 8.0. . . 9.7 
A and C 


211 


i8 


1891.57 


84° 3 


22.16 ... II. 9 


yt 


/? 


1898.29 


83-9 


21.96 ... 12.0 


yi 


/3 


Discovered wi 


th the 18^ -inch. 







(XIII). . .(33 (App.). . ./3 (3114). . ./3 {Pub. L. O. II). . .Aitken 
(^./. 429)...! 



P 78. W= XXII. 1393 







R.A. 23'' 2"" 9" \ 










Decl. + 30° 49' \ 










A and B 











// 






1879-57 


55-0 


17.22 7.2 ... II. 


\n 


P 


1893.25 


54-9 


18.18 7.0. .. I I.O 
A and C 


2f! 


\\ 


1879-57 



61.9 


48.07 . . . II. 5 


\u 


/? 


1893-25 


62.2 


47.28 ... I 1.5 


211 


\\- 



Two distant companions noted with the 6-inch. 
In mv measure of \\\, the double distance, 34. '44, 
is given in /3\ 
1/3 (1). . ./3 {Moil. AW. xxxui, ^51). . ./33. . .Wilson ( >. . .1 



2s6 



General Catalogue of Double Stars 



P i8o. O. .\rg. N. 25161 







R.A. 23'' 2™ 9= 






Decl. +60° 11' 






A and B 







// 


1875.08 


176.8 


0-57 7-5- 


1885.55 


177-5 


0.71 


I88S.95 


177-5 


o-55± 


1890.65 


175-2 


0.62 8.0. 


1891.98 


176.4 


o.42dz 
AB and C 


1875-54 




106.3 


34-30 


1885.54 


106.8 


34-29 


1890.65 


106.6 


34-43 


1891.98 


105.6 


... 



-0 VI 


zJ 


yi 


H2 


A,n 


Sp 


.2 yi 


/8 


i?i 


Sp 



2)1 


J 


in 


H2 


i" 


^ 


m 


Sp 



10.5 



9.4 



Discovered with the 6-inch. Apparently un- 
changed. 

1,3 (in)...|3(J/o«. A/"oAxxxiv,S9).../3(3048).../3(/'«Z'. L. O. 
II)... J (2086)...^ (i)...Sp (in)...HS ( ). . .] 



P 385- W= XXIII. 40 



R.A. 23" 4™ 31= 
Decl. +31° so' 







A an 


d B 






1876.40 


i35°8 


0.42 


7.1... 7.9 


6n 


A 


1880.77 


128.9 


0.51 




III 


Perry 


1881.75 


139.0 






III 


Big 


1882.62 


131-4 


0.50 


7 ... 8 


111 


02 


1883.82 


131. 


0.4 




III 


Perry 


1885.46 


143-2 


0.41 


7.2. . . 7.2 


411 


En 


1885.73 


131. 2 


0.54 




211 


H2 


1888.69 


132-3 


o.4zh 




8;/ 


Sp 


1890.68 


130-4 


0.46 


7.6. . . 8.1 


3« 


18 




AB 


and C (■ 


= H 5532) 






1825 



I05dz 


Cl!' VI 


7 -- - 9 


in 


H^ 


1876.72 


77-1 


58.05 


... 9.0 


211 


J 


1882.62 


77-5 


57-81 


-.- 8.5 


m 


OS 


1885.71 


77-1 


57-93 




m 


H2 


1886.01 


77-4 


58.15 


... 9.3 


211 


En 


1890.68 


77-3 


58-03 


... 8.8 


3« 


/3 


Discovered with the 6 


inch. Chang 


e is 


doubt 



[,3 (VI)... ^ (2062,3048)... /S {Pub. L.O.\\)...A (i)... Perry 
{Etig. Mech. XXXV, 65 ; xxxix, 11). . .Bigourdan {Paris 
Obsns. 1883)... OS (Poiilkowa Obsns. x). . .Engehnann 
(2786)...Sp(iii)...HS ()...] 



p 852. Pegasi 306 



R.A. 23'> 4"' 51^ \_ 
Decl. + 25° 52' \ 



ful. The foregoing are all the measures of the dis- 
tant star making H 5532. 







A an 


d BC 










I88I.6I 


282^6 


58''55 


7.0. 






3« 


/3 


1881.80 


283-3 


58-25 


7.0. 






2;/ 


Ho 


1886.86 


283.0 


58-32 








\ii 


UL 


1887.80 


283.1 


58.62 


7.0. 






in 


Com 


1898.83 


282.9 


58-75 


7-0. 






3« 


A 






B and C 










1881.62 



1 1.2 


// 
1.20 


10.8. 


. 1 1 


3 


yi 


yS 


1881.79 


10. 


1-47 


9.0. 


• - 9-5 


211 


Ho 


1886.86 


10.6 


1.24 








in 


UL 


1888.21 


9-9 


1.66 


10.3. 


. 10 


.8 


VI 


Com 


1898.84 


5-3 


1-49 


10 8. 


. 1 1 


■7 


3« 


A 



Discovered with the i5j^-inch of the Washburn 
Observatory. Aitken measures a 14 m star from 
BC, 207?8 : 18 fo (1898.87) m. Lalande 45362. 

[,3 (xil). . .(S-t. . . Hough (2978). . .Updegraff, Lamb and Corn- 
stock {Pub. Washburn Obsy. V, Vl). . .Aitken (3585). . .] 



P 181. Aqiiarii 2\ 

R.A. 23^ 7" 31= \_ 
Decl. — 14° 3' \ 







A and B 








1876.26 




309.2 


1-51 


7.1. . 


. 10.4 


\>i 


A 


1878.75 


307.8 


1.44 


6.9.. 


. 8.7 


2n 


Cin 


1884.87 


307-7 


1.46 


7.0. . 


. I I.O 


2« 


Ho 


1885.16 


314.6 


1-47 


7.2. . 


. 9.1 


A" 


W 


1886.82 


309 1 


1-57 


7.0. . 


- 9-3 


V 


LM 


1888.77 


305-3 


I -3 1 


7.2.. 


. 9-8 


III 


Lv 


1892.68 


308.8 


1.63 


7.0.. 


.10.5 


3« 


T 


1898.86 


311. 6 


1-45 


7.0.. 


. 10. 


m 


P 






A and C 








1877.74 


234-9 


1 8^7 8 


. . 


. 12 


m 


P 


1878.75 


237-1 


19.24 




. 12.2 


2n 


Cin 


1884.87 


236-3 


19.74 




■13 


m 


Ho 


1898.90 


239.1 


19.18 




. II. 4 


3« 


/8 



Discovered from i8ji to i8gg by S. W. Burnham 



257 



Discovered with the 6-inch. Probably unchanged. 
Lalande 45443. 

(iu)...|3 [Motz. Not. XXXIV, 59). . ./3'. . . J (i) . . .CinS. . . 
Hough (2978) .. . Wilson {Cin'") . . . L M . . . Lv' . . . 'I'arrant 
(3186)...] 





p 


714- B.A.C. 8084 










R.A. 23'! 


7™ 56= / 










Decl. — 


3° 17' ( 






1878.64 




145-5 


■0-5 7 


7.0 . . . 10. 


ifi 


(i 


1877.79 


150.1 




6.5 .. . 10. 


in 


Cin 


1879.76 


156.6 




7.0 ... 1 1.0 


111 


Cin 


1886.73 


146.4 


0.48 


7.1 .. . 10.4 


211 


LM 


1898.84 


139-5 


0-59 


7.0. . . 9.7 


211 


A 



Discovered with the 18^-inch. 
[/3 (X).. ./3'.. .Cin*... Cin*. ..LM. ..Aitken (3585). . .1 

P 715. Aqiiarii 290 







R.A. 23!' 


8" 255 


■ 










Decl. — 


11^ 20' 






1877.79 


258^0 


3-47 


7.0. 


. . I I.o 


i« 


Cin 


1878.29 


256.0 


3-35 


7.0. 


■-11-5 


A» 


i8 


1879.77 


257.2 


3.08 


6.0. 


■ -ii-S 


211 


Cin 


1890.65 


256.9 


3-50 


6.6. 


.. II. 7 


i" 


/8 


1898.69 


257.2 


3-51 


6.8. 


■ -13-2 


v> 


Bd 



Discovered with the 18^ -inch. The Cin ob- 
servers in 1879 thought the principal star was a 
close pair. This star was perfectly round with the 
36-inch in 1891, and Lv found it so in 1886. 
BooTHROYD thought there might be an elongation 
in 280° (189S). Lalande 45490. 

[i3 (x). . .i3'. . .|3 (3048). . .(3 [Pub. L. O. II). . .Cint. . .Cin«. . . 
LM. ..Boothroyd ( )...] 



P716. 

R.A. 23'' 9™ is^ \ 
Decl. — 9° 43' i 



1877.61 


208.6 


1.70 


9-5- 


.10.5 


Ml 


fi 


1891.88 


204.1 


1.79 


9-3- 


, 10. 


V 


a 


1898.81 


207.9 


1-35 


9.0. 


.11.5 


211 


C 



Discovered with the 18^-inch. It is 21''/ «/'' 
Aquarii (/3 1220). This star is not in the S.D. 

1(3 (.\). . ./3'.../3 (^1141.,, /3 (Piih. I.. O. II) . , . Coushall 
( )••■] 



P 1220. \|/' Aqnarii 

R.A. 23'' 9"" 36= \ 
Decl. — 9' 44 ' 1 



. 




B ar 


id C 








1890.63 




lOI.I 


0.22 


9.1. . 


. 9.2 


y 


^ 


1891.57 


94-3 


0.22 


9-5- ■ 


• 9-5 


V 


^ 


1894.66 


99.1 


0.28 






5« 


Bar 


1898.84 


94.8 


0-39 


9.2. . 


■ 9-3 


V 


A 



A and EC f= 2 12 App. 11) 



1836.66 


312.2 


49-63 


4-5- ■ 


. 8.5 


V 


1 


1868.20 


3 I 2 . I 


49-39 


. . 


- 8.5 


S" 


J 


1880.88 


312.6 


49.66 




. 8.5 


4'' 


fi 


1889.68 


311. 8 


49-33 
A an 


d D 




y 


/3 


1877.69 



275.0 


63.0 






If! 


/5 


1880.91 


274-3 


64.96 




■ '.v5 


m 


(3 


1891.89 


274.6 


68.45 




. II. 5 


211 


/? 






EC and E 








1877.69 




34-9 


18.4 






Ml 


^ 


1891.89 


16.7 


19-25 




.12.5 


211 


/3 


1898.98 


9.2 


18.26 




• '3-5 


Ml 


A 



As a wide pair this is H' IV. 12= 2 12 App II 
= S 827. The duplicity of the Herschel compan- 
ion was discovered with the 36-inch. It is a 
difficult pair and beyond the reach of ordinary 
apertures. The large star has considerable proper 
motion, 0^348 in the direction of 92?! (Porter), 
and the old companion is traveling at precisely the 
same rate, so that it is certain that ABC constitute 
a vast physical system. The two small stars, D and 
E, on the contrary, are strangers to the system, and 
are fixed in space, the change shown bv the meas- 
ures being due to the proper motion of the other 
stars. 

[p (XVII)... i3 (3047,3114)... /S'.../33...^ (As/. /?c-g-. MX, 41) 
. . .Barnard (.4./. 447) \itken (35S5). . .] 

The following references include the measures of 
the Her.schel star : 

[Herschel (Cape Odsns.) . . .Jacob (Mini. A'. A. S. xvil). . . 
Radcliffe Obsus. XXI, XXV. . .Engelhardt (Obsns. Aslron. 11). . . 
02 (Poiilkowa Oto;.f. x) . . . Jedrzeiewicz (2407). . .(ilasenapp 

(n)...] 



=58 



General Catalogue of Double Stars 



P 992- O. Arg. N. 25354 







R.A. 23'' 10"' 48^ ) 
Decl. + b-i' 28' \ 


















880.59 




170.5 


ti 
0.41 8.0. . . 


8.2 


5« 


/3 


890.64 


161. 5 


0.34 8.2... 


8-3 


V 


a 


894.20 


I57-I 


0.23±; 




S" 


Sp 


89S.94 


159.5 


0.33 8.0... 


8.0 


i" 


A 



Discovered with the 18^-inch. Retrograde mo- 
tion. 



(xill). . .|33. . .,3 (3048,1 
Aitken ( ). . .] 



{Fuh. L. O. ID. . .Sp (III). 



P 182. W XXIII. 175 

R.A. 23*^ 10" 52= \ 
Decl. — 14° 28' i • 



1876.28 
1877.79 
1879.68 
1884.87 
1886.77 
1888.77 
1891.59 
1892.63 
1898.66 



42 
44 
44 
44 
43 
45 
48 

45 
48 



0.83 

0.72 
0.62 
0.85 
0.74 
0.63 
0.79 
0.58 



8.7 
8.0 

8-5 
8-0 
8.0 
8.2 
8.3 
8.5 
8.2 



9 


V 


J 


3 


m 


Cin 


5 


\n 


Cin 





\)i 


Ho 


2 


3« 


LM 


2 


2« 


Lv 


4 


yi 


^ 


5 


211 


T 


6 


211 


)8 



Discovered with the 6-inch. It is the preceding 
star of a small equilateral triangle. The Radcliffe 
Catalogue for 1890 gives the star a large proper 
motion, i.'33i in the direction of 202?5. This 
is undoubtedly a binary, and one of more than 
ordinary interest if this motion in space is correct. 
For the purpose of a speedy determination of this, 
I have measured a 12.5m star: 

o // 

1898.66 79.9 68.04 2n fi 
1899.75 78.5 68.66 3;/ Bar 

An interval of only a year is too short to give a 
reliable proper motion from two sets of measures ; 
but they confirm the movement given from the 
meridian observations both as to direction and 
amount. 

[fi (III). ../3 {Mon. Not. XXXIV, 59). . .(3 (3114). . .^ (Pub. L. 
0. 11). . . J (l). . .Cin". . .CinS. . .Hough (2978). . .LM. . . 
Lv'. . .Tarrant (3186). . .Barnard ( ). . .] 







P 


79* Lalande 45585 










R.A. 23'> 


II' 


10' ^ 












Decl. — 


2 












A and 


B 













// 












1876.3s 


II5-3 


1.03 




7.9. . 


9.6 


4« 


A 


1877.81 


114 


"1 







8.2. .. 


10. 


i« 


Cin 


1879.64 


108 


5 


0.81 




7-5- - 


8-5 


2)1 


Cin 


1886.63 


102 


4 


1.02 




7.5. . 


9.2 


2>l 


LM 


1891.54 


94 


6 


0.88 




8.0. . 


8.6 


yi 


/3 


1893-54 


87 


7 


0.86 




8.0. . 


9.0 


\n 


Lv 


1893.63 


90 


3 


1.03 




7.8. . 


9.8 


2/? 


W 


1893-95 


94 





0.82 








4« 


Sp 


1894.64 


90 


7 


1. 01 








4« 


Bar 


1895.88 


89 


8 


0.63 








Y)l 


Sp 


1897.71 


86 


4 


0.98 








yi 


A 


1897.88 


85 


3 


1.08 








\n 


Br 


1898.79 


84 


I 


0.81 








in 


Bry 


1898.82 


105 





0.74 








i" 


Bow 


1898.85 


87 


8 


0.75 




8.0. . 


9-1 


2 72 


/8 



AB and C 

o n 

1894.67 157.3 16.00 ...16.5 2n Bar 

Discovered with the 6-inch. A binary in retro- 
grade movement, with a common proper motion of 
the components. 



Stumpe 
Bossert - 
Porter 



0.212 in 119. 7 
0.232 in 115. 5 
0.239 in 107.5 



More rapid angular motion may be expected 
hereafter. The very faint star, C, was detected bv 
Barnard with the 36-inch. 2 2995 is in the field, 
i"/ and 5' J-. 

(^ (I).. .^{Mon. Not. x.\xni, 351).. .(3(3114).. ./3 (Pnh.L.O. 
II)... Zl (i)...Cin-t...Cin5...LM...Lv... {A. J. 382)... 
Wilson ( ) . . . Sp (hi) . . . Barnard (^. /. 447 ; . . . Aitken 
{A.J. 429) , . . Bryant and Bowver ( ) . . . Brown ( ) . . . J 





P8 


53. 0. Arg. N. 


25370 










R.A. 23'' 11™ 37^ 


) 










Decl. + 6i° 9' 












A and B 








1881.64 


228^8 


o!'62 8.7. 


.. 8.7 


2« 


/3 


1888.37 


224.5 


0.55 8.2. 


. . 8.6 


y 


Co m 


1899.27 


225.8 


0.74 9.0. 


. . 9.1 


2/1 


A 



Discovered from, iSji to i8gg by S. W. Burnham 



!59 



AB and C 



1881.67 67.3 7.34 

1888.00 69.8 6.74 

1899.27 69.6 7.02 



. . 13.0 \n /3 
..12.5 zn Com 
..12.0 2 ;/ A 



Discovered with the 15^-inch at the Washburn 
Observatory. So far without change. 

1(3 (Xll). . ./S't. . .Comstock (P/ii. lA^ashhui-n Ohsy. Vl). . . Aitken 





P7 


'17 


. 8 


A, 


niromcdae 










R.A. 23'' 


12 


Ti jjs 1 










De 


cL + 48 


'22' \ 






1878.88 


161.4 




7-55 




5.0. . . 13.0 


A>i 


/3 


1885.61 


159.8 




7.84 






\tj 


H2 


I89I.8I 


161. 8 




7-43 




5.3. . . 12.7 


3;/ 


yS 


1898.76 


162.3 




7.62 




5-5-- -13-0 


2;/ 


/? 



Discovered with the i8j^-inch. The large star 
has a proper motion of ofo24 in the direction of 
ii9?8 (AuwERs). The measures appear to indicate 
a common movement of the components. The 
principal star is No. 267 of Schjellerup's Cata- 
logue of Red Stars. 



(x).../3-. 



(3ll4)...i3 [Pub. L. O. 11).. . H2 



P 80. Lalande 45638 







R.A. 23" 12 


■" 45^ \ 












Decl. + A 


°45M 








1875.80 


300.4 


11 

1.07 


8.2.. 


9-1 


V 


J 


1877.79 


306.1 


1.24 


8.5.. 


I I 


211 


^ 


1881.69 


312.2 


0.91 


8.0. . 


8.8 


yt 


13 


I8S6.94 


316. T 


0.84 


7.7. . 


8.7 


m 


LM 


1888.71 


319-5 


0.92 


8.2. . 


8.9 


\ii 


^ 


1888.79 


319-5 


0.84 


8.0. . 


9.1 


l» 


Lv 


1891.57 


322.5 


0.69 


8.0. . 


8.6 


3« 


/3 


1892.97 


327.2 


0.60 






y> 


Sp 


1893-54 


328.0 


0.81 


8.4.. 


9.0 


\n 


Lv 


1893.66 


329.1 


0.S5 


8.3.. 


9.2 


3« 


W 


1893.96 


325-8 


o-55± 






y 


Sp 


1894.84 


325-1 


0.63 


8.1 . . 


8-7 


in 


Lew 


1898.76 


347-8 


0.56 


8.2. . 


8.5 


\H 


/8 


1898. 78 


330.0 


0.60 






\n 


Bow 


1898.78 


343-' 


0.62 


8.1.. 


9.0 


A>i 


A 


1898.99 


339-6 


0.51 






1 // 


Bry 







AB and C 








1891.80 




5-3 


103.81 8.0. 


■ 10.5 


2n 


Eng 


1898.66 


4.1 


104.08 

AB and D 


■ 10.5 


2tl 


13 


1891.80 


333-2 


i83''57 


- 9-5 


2/1 


Eng 


1898.66 


332.4 


186.36 


. 9.0 


2n 


(3 



Discovered with the 6-inch. . One of the most 
interesting binaries from the rapid relative motion, 
and the large movement of the system in space. 
The components have a large common proper mo- 
tion : 



Stumpe 
Boss 
Porter 
Bossert 



0.534 m 102.3 

0.509 in 101.2 

0.480 in 100.5 

0.478 in 104.5 



The distance is decreasing, with a corresponding 
increase in the angular motion. It will probablv 
soon become a difficult object to measure. The 
principal measured positions are shown on the 
accompanying diagram : 

7^0° 



-S70^ 




_L_^ I 



Seal. 



/i 80. 



A continuation of the measures of the distant 
stars will give independent data for the determina- 
tion of the proper motion. The above observa- 
tions give for the movement of A, o.'44 in the 
direction of io5?9. 

1/J (1). . .j3 {A/on. Not. xxxiu, 351). . ./3'. . .j3^ . ./3 (2S750II4) 
/3 {Pub. Z. a II) . . . J (!) . . . LM . . . Lv . . . Lv {Sid. A/ess. 
VIII, 77). . .Sp (111). . .Lv {A./. 382). . .Wilson ( ). . . 
Lewis, Bowyer and Bryant (Greenwich Obstis. 1894) (J/<>//. 
Not. LVi. 359; I.1X, 400). . .Aitken (3585). . .Engeliianli 
{Ohsns. Astion. III). . . ] 



26o 



General Catalogue of Double Stars 



P 229. Lalande 45726 



R.A. 23'' 14" 27== 
Decl. + 56° 35' 



1876.68 


37-9 


17-55 


7.0 


. . 1 1 . 7 211 


J 


1888.69 


36-7 


17-93 


7.0 


. . 1 1.9 2« 


T 


1898.99 


36-7 


17-75 


6.9 


. . 1 1 . 4« 


D 


Discovered wi 


th the 6- 


inch. 


No chansre. 





[|8 (IV)... iS {Mon. Not. xxxiv, 382) . . . 4 (l) 
(29Q1). . .Doolittle {Pub. Flower Obsy. i). . .] 



278. B.A.C. 8138 






R.A. 23'' 15™ 20' ) 






Decl. + 61° 33' \ 






14.76 6. 5... [1. 5 


\u 


OS 


12.66 6.6. .11.8 


3;; 


/8 



1876.45 351.9 
1890.64 173.9 

1898.59 174.8 12.86 6. 7... 12. 1 yi fi 

Discovered with the 9.4- inch at the Dartmouth 
College Observatory. Evidently an error of 180° 
in the measure of 02. The proper motion of this 
star is very small, ofoi5 in the direction of 247? 2 
(AuwERs). A naked-eye star in Cassiopeia ; Hets 
6m; Harvard photometry 6.3m. 



[/3 (v). . ./3 (Mon. Not. xxxv, 31). . 
n). . .OS (Poulkowa Obsns. x). 



./3 (3048). ..p(P//b. L. O. 



P 718. 64 Pegasi 











R.A. 23'' 


16- 3^ ) 
31° 9' \ 












Decl. + 








1878.74 


88!3 


0.47 


5.0. . 


8-7 


4-" 


^ 


1878 


74 


88 


7 


0.56 


5.0. . 


7.0 


111 


A 


1882 


62 


85 


9 


0.60 


6.0. . 


8.0 


m 


02 


1884 


72 


86 


5 


0-73 






2« 


H2 


1888 


73 


85 


8 


0.63 






i" 


Sp 


1888 


80 


85 


4 


0.67 


5-8.. 


7-8 


4// 


^ 


1889 


50 


86 


2 


0.69 


5-8.. 


8.8 


y 


^ 


1898 


59 


85 


5 


0.72 


5 ■ . 


8 


\n 


A 



Discovered with the 18 J^ -inch. There is no 
material relative change, but the components have 
a common proper motion of of 020 in the direction 
of 144? 2 (AuwERs), and thev therefore form a 
binary system. 

f/S (x).../3-.. .,33. ,./3 (2875,2957).. ./3 [Pub. L. O. \\)...A (1) 
. . .02 (Poulkowa Obsns. x) . . . Sp (ill) . . , Aitken ( ). . . 
HS( )...] 





p 


854. D.M 


(5^5 


164 










R.A. 23" 


i8' 


" 14^ { 












Decl. + 


5 


"23'[ 








1881.66 




90.0 


// 
2.10 




8.7.. 


8-7 


y 


/? 


1886.86 


89.7 


2.44 








5" 


UL 


1887.70 


87.9 


2.38 




8.4... 


8.6 


V 


Com 


1888.82 


88.3 


1.89 




8-5.. 


8-5 


\ii 


Lv 


1899.32 


88.3 


2-47 




9.9. . 


9.0 


6)/ 


D 



Discovered with the 15 5^ -inch at the Washburn 
Observatory. Apparently without change. 

[/3 (xii). . ./3-t. . .Updegraff, Lamb and Comstock (Pub. IVash- 
burn Obsy. V, vi) . . . Lv' . . . Doolittle (Pub. Flower 
Obsy. I).. .] 

P 719. W XXIII. 342 



R.A. 23'' 18™ 22= 
Decl. 4- 13° 49' 



1877-86 


10.9 


1. T 1 


8.0. 


. I I.O 


in 


/8 


1887.79 


8-3 


I-3I 


7.2. . 


. 1 1.0 


211 


Ho 


1891.60 


3-6 


1-34 


7.6. 


■ 1 1-5 


V 


H 


1895.71 


354-6 


1.27 


7 - 


. 1 1 


\n 


Ho 


1897.83 


358-8 


1-47 






\n 


Br 


1899.72 


2.2 


1.46 


7-2. 


. 11.7 


2n 


D 



Discovered with the 183^ -inch. In an unequal 
pair of this class, the apparent change in angle 
needs confirming. In my Tenth Catalogue this 
star was erroneously identified as W' XXIII. 363, 
and given with an error of i°ii' in the Decl. It 
was found independently by Hough, and is Ho 
301. 



(X). ../?'... /3 (3114) .. 
{2977.3558) - - - Brown ( 
Obsy. 1). . .] 



(Pub. L. O. n) ... Hough 
) . . . Doolittle (Pub. Flower 



P 386. B.A.C. 8173 



1876.97 
1888.71 
1899.05 



312.3 
313-I 
313-0 



R.A. 23I' 21" 
Decl. -\- 70° 

/; 
20.08 

20.69 

19.94 



[ 



6.5.. 
7.2. . 

6.6.. 



II. 9 
11.2 
10.8 



4« 
3« 
3« 



A 
D 



Discovered with the 6-inch. The principal star 
has a proper motion of ofo26 in the direction of 
96?7 (A.G.C). 

[/3 (VI). . .13 (2062,2875). . .fi (l^ub. L. O. II). ..A (i). . .Doo- 
little ( /'///'. Flower Obsy^ [)...] 



Discovered from i8ji to i8gg by S. W. Burnham 



261 



p 1 148. Groombridge 4070 

R.A. 23h 22"' 2S \ 
Dec). +64° 58' \ 

* o ;/ 

1889.60 73.9 2.13 7. I... 13.0 3;/ ^ 

1898.68 77.3 2.47 6. 5... 13.0 Ml A 

Discovered with the 36-inch. In D.M. 6.5 in. 

[iS (XVI). . ./3 (2956). . ./S {Pub. L. O. II). . .Aitken ( ). . .] 



P I22I. D.M. (41°) 45 



R.A. 23'' 22" 12=^ 
Decl. + 41° 46' 



1890.50 145.2 1. 91 9. 3... 10. 5 3« ^ 

1896.93 145.9 1-73 ••• 3« A 

Discovered with the 16-inch at the Warner Ob- 
servatory in 1885. 

[iS (xvil). ../3(3047). ../3 (Pub. L.O.w).. .Aitken (3466). . .] 



P 1222. D.M. (2") 4669 



Dec). + 2° 54' 

O II 

1890.82 37.4 1. 14 8.9. 

1896.87 35.2 0.92 

1898.74 31.8 T.04 

Discovered with the 12-inch. 



9.0 in (i 
A,n A 
\n Bow 



r/3 (xvil). . .;8 (3047). . ,^ (Pub. L. O. II). . .Aitken (3466). 
Bowyer (Moji. Not. Lix, 400). . .] 



P II49. D-M. (57°) 2746 
('" llM 



R.A. 23'" 24'" 11^ 
Decl. + 58° 



1889.58 309.1 0.52 9.4.. ■ 9-8 yi /8 

1898.81 308.9 0.56 ... 2ft Hu 

Discovered with the 36-inch. In the field with 
the multiple star, 02 496. 

02 496 (A) and li 1 149 (AB) 

O II 

1889.58 277.6 231.07 ... \>i [i 

[^(xvO...(3 (2956). . ./3 (Pub. /.. (A II). . .llus.sey ( )...] 



P 1266. D.M. (30 ) 4963 



R.A. 23'' 24"" 29= 
Decl. -|- 30° 10' 







A and 


B 













II 










1891.69 


74.0 


0.24 


7-4- 


■ 7-4 


yi 


/? 


1893-54 


65-9 


0.23 






Ml 


Lv 


1893.64 


73-3 


0.26 


8.0. 


. 8.0 


211 


\V 


1893.67 


60.3 


0.22dz 






7« 


Sp 


1895.96 


55-5 


o.20zh: 






2« 


Sp 


1896.78 


52.0 


0.28 






2/1 


Lew 


1897.94 


41.6 


0.36 






Ml 


Lew 


1898.71 


54-0 


0-35 






in 


Lew 


1899-55 


45-5 


0.24 


1 -1 ■ 


. 7.8 


I" 


A 



1830 


52 


204.0 


18.92 


1843 


74 


203.4 


19.41 


1864 


45 


204.0 


18.98 


1870 


07 


203.8 


18.83 


1879 


57 


202.9 


19.19 


1891 


69 


203-5 


18.92 


1894 


44 


203.6 


18.79 


1897 


86 


204.0 


18.95 


1899 


54 


203.4 


18.77 



AB and C (= S 3018) 



7-2 



7-2 

7-9 
7-0 



9-5 


2n 


1 




\n 


Ma 


9-0 


V 


J 


9.8 


4// 


Dun 


9-5 


Ml 


Cin 


9.0 


i" 


^ 




2n 


Sp 




V 


Lew 




\n 


A 



The larger component of 2 3018 was found to 
be a close pair with the 36-inch. The measures 
show rapid motion. It is a binary, and probably 
of short period. There is no change in C since 
the observations of Struve. All the measures are 
given. 

[P (xviii)...|8 (3ii3).../3 (Pub. L. a II)... Lv (.-/./. 382) 
. . . Sp (hi) . . . Wilson ( ) . . . Lewis (Mon. N'ot. i.ix, 400) 
...Madler (Fixstern-Sysieme l) (Dorpat Ohsiis. xO... 
Herschel (Mem. P. A. S. iv) . . .A (11). . .Duner (A/tsures 
Microm. Lund, 1876). . .CinS. . ..-Mtken ( ). . .] 



P 1 150. O. -Vrg. N. 25672 

R..\. 1^^ 24™ 46^ ) 
Dec!. -I- 64^ 24' \ 



1889.60 


44.0 


0.61 


8.7.. 


. o-o 


3" 


^ 


1898.68 


49-7 


0.57 


8.5. . 


. 9-0 


I// 


A 



Discovered with the 36-iiu-h. 
|j3 (XVI)... /3 (2956)... /3 (if///-. /. O. II)... Aitken ( )...] 



262 



General Catalogue of Double Stars 



P 1151- 

R.A. 23" 25" 6= 
Decl. + 57° 43' 

o // 

1889.59 293.7 0.64 9.7. 
1899.59 291.4 0.67 10.5. 



9-7 VI ^ 

II.O \H A 



Discovered with the 36-inch. A difficult pair. 
and so far without change. 

It is too faint to be included in the D.M. In 
the field with 2 3022. 

S 3022 (A) and /3 1 1 5 i (AB) 

1889.58 i89?7 ii6."88 3« j8 
[|8 (XVI).. ./3 (2956)... /3 {Pub. L. O. n). . . Aitken ( ). ..] 

P 774- D.M. (63^) 2006 



R.A. 23'' 25" 19= 
Decl. + 63° 40' 



1880.58 


6.7 


0.51 


8.4.. 


. 8.8 


3« 


i8 


1890.64 


4.1 


0.52 


8-3-- 


. 8.6 


V 


i8 


1892.16 


1.8 


o.45± 


. . 




S>' 


Sp 


1898.68 


359-1 


0.66 


8.2. . 


. 8.8 


3« 


A 



Discovered with the 6-inch at Mt. Hamilton in 
1879. It is a difficult pair with a much larger 
aperture. Retrograde motion ? 



[/3 (XI)... ^^../33... (3(3048). 
...Aitken (3585)- • -J 



./3 {Pub. L. O. II)... Sp (III) 



p 720. 72 Pegasi 









R.A. 23" 


28™ 0^ 


\ 










Decl. + 


30° 40' \ 






1878.74 


127.7 


// 
0.40 


6.0. 


. 6.0 


yi 


/8 


1878 


74 


128.7 


0-37 


5-5- 


. 6.0 


ifi 


J 


1880 


01 


311. 


0.41 


6.0. 


. 6.1 


3" 


/? 


1882 


62 


308.9 


0.48 


6.0. 


• 7-0 


171 


OS 


1883 


40 


147.6 


0.25 






7« 


En 


1886 


61 


141. 6 


0-45 






5" 


H2 


1887 


60 


141. 8 


o-3± 






yi 


Sp 


1888 


93 


142. 1 


o.4zt: 






8« 


Sp 


1889 


50 


146.0 


0.38 


6.0. 


. 6.0 


3« 


/? 


1890 


55 


148.3 


0-37 






3« 


y8 


I89I 


67 


149-5 


0-33 






3« 


i8 


1893 


54 


151-3 


0.30 


6.5. 


. 6.0 


\n 


Lv 


1893 


67 


150-9 


0.42 


6.2. 


. 6.0 


3« 


W 



1893.97 


160.7 


0-35 


1894.42 


153-8 


0-37 


1896.67 


157-0 


0-39 


1896.76 


157-7 


0-37 


1897.82 


164.5 


0-43 


1897.83 


158.4 


0.41 


1897.93 


158.6 


0.38 


1897.93 


160 2 


0-33 


1898.67 


161. 2 


0.50 


1898.78 


158.2 


0.50 


1898.91 


159.2 


0-39 


1898.97 


151. 1 


0.34 



6.0 



6-5 



6-5 



\7l 


Sp 


6« 


Bar 


Vi 


Lv 


3« 


Lew 


\7l 


Dy 


yi 


Hu 


\n 


A 


271 


Lew 


3« 


A 


i« 


Lew 


i;/ 


Bow 


\7I 


Bry 



Discovered with the i8j^-inch. A binary in 
direct motion. So far the change has been about 
i?5 per year. The system has an annual proper 
motion of 0^025 in the direction of ioi?5 (Auwers). 

[^ (X). . .^■. . .,33. . .^ (2957,3048,3114). . ./3 {Pub. L. O. II). . . 
/J (l) . . .02 {Poulkowa Obsns. x) . . . Engelmann (2678). . . 
Sp (hi). . .Lv (.4./. 382,407). . .Wilson ( ).., Barnard 
(A.J. 447)... Gore [Mon. Not. XLVil, 62)... Lewis and 
Dyson {Mon. Not. Lix, 400) . . . HS ( ) . . . Hussey {A.J. 
427)... Aitken {A.J. 429) (3585)- •■] 





p 


387. L 


alande 46 


62 










R.A. 23'' 


28" 8=* \ 












Decl. — 


10' 22' \ 








1876.67 




71.6 


li 

5-73 


8.7.. 


10.2 


yi. 


A 


1877.77 


69-5 


5-94 


8.0. .. 


9.0 


2 71 


Cin 


1891.87 


70.8 


5.82 


8.1. .. 


9.0 


271 


^ 


1898.65 


70.0 


5-91 


8.2. . 


9.2 


y 


Bd 



Discovered with the 6-inch. Without change. 

[(3 (VI)... |3 (2062,3114).. ./3 {Pub. L. O. \\)...A (i)...Cint 
Boothroyd ( ) . . . ] 



P 388. W= XXIII. 590 

R.A. 23!' 28™ 52= \ 
Decl. -f 37° 22' \ 

6.5. . . 12.- 



1876.46 334.3 
1897.82 333.5 
1898.68 333.5 



21.77 

20.53 
21.28 



6-3- 



271 /8 

4« D 



Discovered with the 6-inch. Hels gives this as a 
naked-eye star in A7id/-o)7teda, 6-7 m. 

[/3 (vi)...;8 {2062)...^ [Pub. L. ai0...zl (i)...Doolittle 
{Pub. Flouier Obsy. l). . . ] 



Discovered from iSyi to i8gg by S W. Burnham 



26- 



P 8l. W XXIII. 562 



•A. 23'' 


28 


"59= ( 








eel. — 


12 


' 14' \ 








II 

1-53 




8.3.. 


. 9.8 


y> 


J 


1.96 




8.2.. 


. 9.7 


211 


Cin 


i.g6 




8.2.. 


. I r.o 


3« 


LM 


2.01 








m 


Br 



1876.08 10.5 

1877.86 14.8 

1886.40 13.4 

1897.94 14.6 



Discovered with the 6-inch. Probably fixed. 

[/3 (1). . ./3 {Mon. Not. xxxiii, 351). . .A (1). . .Cin''. . .LM 
Bvovvn ( ). . ■ ] 



P 721. W XXIII. 592 







R 


A. 23" 


30 


. 7s < 












D 


2C1. — 


7 


°47' \ 















// 












1878.22 


138.2 




0.51 




9.0.. 


■9.0 


\n 


/8 


1879.16 


145-5 




0.44 




8.0. . 


9.0 


2.11 


Cin 


1886.77 


134.6 




0.38 




8.0. . 


8-3 


2n 


LM 


1898.68 


117. 1 




0-73 




8.0. . 


8.5 


m 


Bd 


1899.68 


131-7 




0.32 




8.6.. 


8.6 


3" 


A 



Discovered with the 18^ -inch. The change, if 
any, is in the distance. There is a faint star in 
the n p quadrant : 



1898.68 301.7 
1899-63 301-1 



21.38 
22. 19 



.12.5 
. 14.0 



m 






Cins . . . LM . . . Boothroyd 



Bd 
A 

. Aitken 



P 775 ^ P IO12. Lacaille9534 



R.A. 23'' 


30- 


"45^ \ 








Decl. — 


32 


°32M 








5-35 




7.2. . 


• 10-5 


4// 


i8 


5.60 




7.0.. 


■ 0-5 


2H 


Pol 


5.28 




7.0. . 


. 1 r.o 


V> 


Cg 


5.28 




7.0. 


. 10.0 


3« 


""A 



1881.45 251.0 

1886.92 248.0 

1898.70 251.2 

1898.74 250.6 



Discovered with the 6-inch at Mt. Hamilton in 
1879, ^'id again independently with the^i 2-inch in 
188 1. In Cord. G. C. 6>^ m. Without change. 

[/3 (xi, xiu). . .(3=. . ./33. . .Pollock (Pub. Sydney Obsy. l8qi) 
{Mem. A'. A. S. \.) . . .Cogshall ( ). . .Aitken (35^5)- ■ -1 



P 855. D.M. (67") 1546 

K.A. 23" 32™ 23=* } 
Decl. +67" 33' S 

1881.53 204°2 o'!82 8.5... 8.8 i,n /? 

1888.51 199. 1 0.79 8.5... 9.3 3« Com 

1898.53 201.2 0.94 8.8... 9.2 3« D 

Discovered with the 151^-inch at the Washburn 
Observatory. 

[/3 (xii). . ./i". . .Comstock {Pub. Was/iburn Obsy. v\). . . Doo- 
little {Pub. Flower Obsy. I). . . | 



P 722. D.M. (41 ) 4886 

R.A. 23^ 32"' 33^ \ 
Decl. + 41' si' ^ 

o ;/ 

1878.53 348.6 7.45 6. 8... 12. 5 i/i (i 

1885.82 348.5 7-38 ... 2J, H2 

1897.82 348.9 7.26 ... 211 fi 

Discovered with the 181^- inch. Without change. 

[^(x)...^L..HS( )...] 

P 856. O. Arg. N. 25859 



R.A. 23^' 33"' 3= 
Decl. + 69' 58' 



1881.55 266.0 0.58 8.1... q.i 2H ^ 

1886.89 267.8 0.66 8.2... 9.5 3// Com 

1898.53 265.3 0-62 8.5... 9.3 3« D 

Discovered with the 15^-inch at the Washburn 
Observatory. 

[(3 (xii). . .^^ . . .Comstock {Pub. Washburn Obsy. vi). . .Doo- 
little {Pub. Flower Obsy. l). . . ] 



P 723. Lalande 46375 

R.A. 23'' 34'" 32^ \ 
Decl. — 0° 15' \ 

1878.25 168^5 3.78 7.0... I 1. 3 4" /3 

1888.93 168.2 .... 7.0... 12.0 Ml Lv 

1891.77 167.8 3.66 7.1 ... 1 1.5 yi /3 

Discovered with the iS'^-inch. Fixed. 
[(3(x). . .|8'. . ./3(3U4). . ./3 {Pub. /.. O. 11) . . . Lv- . . . 1 



264 



General Catalogue of Double Stars 



P 724 W XXIII. 691 







R 


A. 23" 34- 


"46= \ 










D 


ecl. + 7 


° 19' s 






1878.73 



85-7 




0.75 


9.0.. 


9-5 


lU (S 


1889.88 


88.7 




0.5 + 






ifi Sp 


1891.77 


87.4 




0.64 


8.7.. 


9.1 


y 


1898.73 


89.1 




0.78 


9.0.. 


10. 


3'' Cg 


1898.85 


88.7 




0.60 


8.8. . 


9-5 


3'^ A 


Discovered wi 


th the 1 81^ 


-inch. 


Unchanajed. 



[|3 (x).../3'...^ (3114)... ,3 (Pni. L. O. 11)... Sp (ill). 
Cogshall ( ). . . Aitken (3585). . . ] 



P 857. D.M. (66") 1630 



R.A. 23^ 


34 


m^gs 


\ 








Decl. + 


66 


° 53' 








1-39 




8.5. 




8.9 


4« 


iS 


1.66 




8.4. 




9-3 


3« 


Com 


1-43 




8.6. 




9-5 


3« 


D 



1881.53 296.9 
1887.77 296.6 

1898.54 297.0 



Discovered with the 15}^ -inch at the Washburn 
Observatory. 



[iS (xii). . ./34. . .Comstock {Pub. Washburn Obsy. vi) 
little {Pub. Flozver Obsy. l). . .] 



p 858. Lalande 46423 



R.A. 231^ 35" i85 
Decl. + 31° 54' 



A and B (= /3 858) 

o // 

276.6 0.48 7.7 

273-9 0-53 7-0 

267.7 0-67 
272.4 0.71 8.4 
268.9 0-65 8.0 
263.7 0.54 

268.0 0.61 
261.9 °-67 
269.6 0.71 
262.6 0.70 

267.1 0.75 
267.4 0.81 



.Doo- 



1881 
1885 
1887 
1891 

1893 
1896 
1897 
1897 
1897 
1898 
1898 



■57 
.72 

■83 
■74 
64 

■55 
,72 

79 
,82 

,87 
,72 
■87 



8.2 
7.0 

9.1 

8.2 



m 
2/1 
3;? 
2;/ 

5" 
ifi 

3« 
\n 

3« 

17/ 

\n 



i8 

Ho 

H2 

Com 

i8 

Sp 

Lew 

Bow 

Dys 

A 

Lew 

Bow 



AB and C (= /3 389) 



;i.62 
!i.76 



51.0 

50.5 



23.66 

23-78 



12.8 3« /3 
13.0 i« Ho 



1885.83 53.3 23.64 
1888.31 52.4 24.06 
1891.64 52.1 23.24 



12.0 
12.7 



2« HS 
in Com 

2« ^ 



The distant star was noted with the 6-inch, and 
the principal star subsequently found to be a close 
pair with the 15^-inch. The latter is a binary in 
slow retrograde motion. 

[/3 (VI, XII)... /3 (2062,3114), . ./3-'.../3 {Pub. L. O. II)... Sp 
(ill) .. .Comstock {Pub. Washburn Obsy. vi)... Aitken 
{A. J. 429)... HS( )... Lewis, Bowyer and Dvson 
{Mon. Not. Lix, 400). . . ] 



p 279. 0)^ Aquarii 



R.A. 23" 36™ 30^ 
Decl. — 15° 12' 



1875-54 


87.8 


5.68 


5-0. 


. I I.O 


4« 


J 


1877.82 


84-5 


5.66 


5-2. 


- 9-3 


3« 


Cin 


1888.71 


83-3 


5.86 


5-2. 


. II.O 


3« 


/3 


1888.77 


86.0 


5-43 


5.0. 


.10.5 


4« 


T 


1888.93 


85.4 


5-II 


5-0- 


. 10.8 


\n 


Lv 


1898.64 


85.6 


5-70 




. 10.2 


in 


/8 


1898.65 


83-9 


5-32 


4-5- 


.10.7 


V> 


Cg 



Discovered with the 9.4-inch at the Dartmouth 
College Observatory. The bright star has a proper 
motion of o!'o9i in the direction of i3i?4 (Au- 
WERs). This is sufficiently large to show that the 
companion is moving with the primary. In twenty- 
three years there is no material relative change in 
the components. They appear to have a common 
proper motion. 

[;3 (V). . .^3 {Mon. Not. xxxv, 31). . .;8 {2875). . -^ {P"-h- L. O 
\\)...A (l)...4 (2086). . .Cin-*. . .Tarrant (2991)... Lv' 
. . . Cogshall ( ) . . . ] 



P 725- Lalande 46464 



R.A. 23" 36" 36= 
Decl. — 12° ' 



1877.79 
1877.82 
1891.89 



243.8 

237-3 
241. 1 



1898.85 238.0 



4-59 
4-30 
4.1 2 

4-24 



8.0. 
7.0. 
7.9. 
8.0. 



. 1 1.0 \n 

. I 1.0 2>l 
•12.5 l" 



12.0 



in 



Cin 



Discovered with the 183^ -inch. Probably fixed. 

[/3 (x).../3'... ,3 (3ii4).,.i3 (/'«/;. L. O. il) . . . Cin-*. . . ] 



Discovered from i8^i to i8gg by S. W. Burnham 



265 



P 993. Cepliei 301 



R.A. 23'' 36"" 42' 
Decl. + 63° 51' 



1880.75 279.7 2.67 7.0... II. 4 A,n 13 

1892.73 277.4 2.79 7.0... 12.0 I// W 

1898.66 274.0 2.48 7.0...11.0 3« D 

Discovered with the i8)^-inch. Magnitude in 
Argelander 6.0; Harvard 6.9 ; A.G.C. 6.5. Groom- 
bridge 4130. 

[/3 (xni) . . . (33 . . . Wilson ( ). . . Doolittle {FhI>. Flower 
Obsy. 1 1 ... 1 



P 994. Lalande 46490 



R.A. 23'' 37™ 31' 
Decl. + 24° 26' 



1880.63 3°6.5 1.38 7.9...11.0 4« p 

1893-77 315-1 1-45 8.0... 10. 8 yi W 

Discovered with the 183/^ -inch. 
[(3 (.\ni).../33... Wilson ( )...J 



P 1223. D.M. (4=) 5046 



°r\ 



Decl. + 4° 2 



1890.82 298.6 1.33 8.1... 10. 8 yi fi 

1892.46 297.2 1.32 ... 4^ Sp 

1896.88 291.2 1. 16 ... 211 k. 

1897.96 294.8 1. 19 ... t;/ Lew 

Discovered with the 12-inch. Change in angle? 

[^ (.wil). ..^ (3047)- --iS [Pub. L. O. il)...Aitken (3466).. . 
Sp (ill). . .Lewis [Mon. Not. l.ix, 400). . .] 



P 726. S.D. (13 = ) 6461 

R.A. 23^ 40" 24= ) 
Decl. — 13* 25 ' \ 



1877.86 


324.2 


0.91 


8.5. 


■ 10.5 


i« 


/? 


1879.77 


326.6 




8.0. 


. 10.2 


211 


Cin 


1886.85 


324-5 


0.68 


8.1. 


. 10.2 


2fl 


LM 


1898.76 


326.3 


0.89 


8.5. 


. 10.5 


\/l 


Bd 


1898.86 


320.2 


0.67 


s.o. 


. 10. 


2)1 


.\ 


1898.72 


322.5 


0.65 


8.5- 


• 9-5 


y 


Hu 



Discovered with the 183^-inch. 

[/3 {xj ... fi' ... Cin « . . . L.M . . . Bootliroyd ( ) . . . Aitken 
(358s)...Hussey ( )...] 



P 727. W^ XXIIl. 866 

R.A. 23'' 4i'» 2f ) 
Decl. + 24° 55' \ 

1878.69 313.4 17.47 7.0... 12. 5 2U /? 

1885.82 313.6 16.86 ... 2« H2 

1891.64 315.2 16.83 7-3- ••13-5 3-" ^ 

1899.72 316.2 17.08 7.0... II. 8 2« D 

Discovered with the 183^ -inch. The distance 
printed in /3 (x) should be doubled. 

[p (x)...p-...(i (3ii4).../3 {P»b.L.O.u)...HZ( )... 
Doolittle (P/ii. Flower Obsy. l). . .] 



P 390. Lalande 46617 

R.A. 23*- 41"' 33= / 
Decl. -f 48° 38' \ 

1879.59 233.9 18.35 8.0... 12.0 \n Cin 

1880.74 233.9 18.02 8. 3... II. 8 I// ^ 

1892.84 233.3 17.28 8. 2... 1 1. 2 2« W 

1899.68 232.2 17.58 7. 6... II. 2 211 D 

Discovered with the 6-inch. Change in dis- 
tance ? 

[/3 (VI)... ^ (2062).. .^3. . .CinS. . .Wilson ( )... Doolittle 
( Pub. Flower Obsy. 1 ) . . . ] 



P 995- Groombridge 4139 

R.A. 23" 41™ 35^ ( 
Decl. -|- 46° 10' \ 



1879.61 


240.0 


0-73 


6.0. 


. 9.0 


\n 


Cin 


1880.01 


245-4 


0.S8 


6.5. 


• 8.5 


1)1 


/8 


1889.48 


243-4 


0-93 


6,2. 


. 10.2 


y 


^ 


1891.75 


239.8 


0.77 


6.7. 


- 9-5 


3" 


/8 


1894.60 


238.4 


0.73 






7" 


Sp 


1898.65 


237-5 


0.8 I 


6.2. 


. 8.4 


4;/ 


.\ 



Discovered with the iS}j-inch. This is a naked- 
eye star in A)id)0))ieda. Change in angle is proba- 
ble. 

[/3(xili).../3'.../3 (2057,31141... /} {Pub. L. O. lll...Cin5... 
Sp (mi). . .Aitken (35S5I. . .] 



266 



General Catalogue of Double Stars 



p 1 152. Groombridge 4142 



R.A. 23'> 42'" 18^ 
Decl. + 63° 9' 

B and C 



1889.60 102.4 0.64 9.2... 9.2 3« j8 
1898.78 102.8 0.60 9.0... }.j 211 A 

A and BC 

o ;/ 

1889.60 136.3 74.28 7-5--- i" ^ 

1898.68 136. 1 74.42 7.0... 3;? A 

Discovered with tiie 36-inch. Unchanged. 
[^(xvi)...(3(2956)...Aitken (3S85)...J 



p 1013. 8 Sculptoris 



R.A. 23'^ 42"" 40= 
Decl. —28° 48' 



A anc 


B 








3-36 


5-0- 


. 13.0 


2« 


H 


3-34 


4-7- 


.12.5 


211 


li 


3-32 


5-5- 


■13-5 


2« 


A 



1881.86 228.2 

1891.64 228.9 
1899.68 229.9 



A and C (= H 3216) 

o ;; 

1830 300.6 8odz 5 . . . 10 11! H 

1881.88 296.6 74.31 ... 8.9 yi /3 

1891.64 296.7 74.03 ... 8.8 2// /3 

1898.74 296.7 74.23 ... 8.0 2« Bd 

The close star was discovered with the 12-inch 
on Mt. Hamilton in 1881. Auwers gives the 
proper motion of 8 Sculptoris of 108 in the direction 
of i54?o. The close star is moving with the other, 
and it is doubtless a physical system. All the 
measures of the Herschel star are given above. His 
estimate of the distance in 1830 must be too large. 
The three sets of measures seem to indicate common 
proper motion, as otherw^ise the distance should 
have increased about i f 3 from 1881 to 1898. 
W (xni)...|33...^ (3ii4)...i3 {Fi^i. L. O. 11)... Boothroyd 
( )...Aitken( )...| 

p 728. Lalande 46752 

R.A. 23'' 46™ 7s / 
Decl. -(- 42° 50' f 

1878.23 352.6 1. 14 8.3... 8.3 2« /3 

1883.34 351.9 1.20 8.2... 8.3 7« En 

1892.73 353-7 1-37 9-0- ■ • 9-5 i« W 

1898.54 354.0 1.26 8.1... S.r 4;/ D 



Discovered with the 18^-inch. In A.G.C. 7.1 m. 

(x). . .^'. . .Engelmann (2678). .. Wilson ( ) . . . Doolittle 
(Pub. Flower Obsy. l). . . ] 



P 996- Piazzi XX I II. 2ii 







R.A. 23^ 


46 


n>34M 

53' S 












Dec). + 


74 








1880.64 




64.7 


5-52 




6.8.. . 


I 1.7 


\)l 


/8 


1888.74 


67.1 


5-43 




7.2. .. 


I 2.0 


v 


i8 


1889.51 


68.0 


5-77 




6.4... 


12.5 


yi 


^ 


1898.62 


70.9 


5-72 


T/ 


6.5... 

.ir,,-h 


I 1.4 


in 


/3 



has a considerable proper motion, o "288 in the 
direction of 8i?8 (Porter). This is evidently a 
binary in slow direct angular motion, with a large 
movement in space common to both components. 
Engelhardt [Obs//s. Astron. iii) measures a 
distant star, D.M. (74°) 1049, i30?6 : 165 f 74 
(1894. 1 1) 2n. 

[l3 (.Mil)... ^1... ,3 (2875. 2957). ../S (Pub. L. O. 11)... 1 



P 859. W XXIII. 961 



R.A. 23'' 46" 35= 
Decl. + 22^ 18' 



1881.67 217.3 o-6'3 8.5... 8.5 3« /3 

1887.81 214.8 0.64 9.0... 9.0 3// Com 
1898.74 215.5 °-72 9.0... 9.0 2« D 

Discovered with the 15^ -inch at the Washburn 
Observatory. 

[/3 (xil). , ./S-i. . .Comstock (Pub. Washburn Obsy. vi). . .Doo- 
little (Pub. Flower Obsy. l). . .] 



P "53. 

R.A. 23'' 46™ 45' 
Decl. + 60° 2' 

A and B 



188-9.68 318.5 0.43 9-7-- 9-9 4« P 

1899.58 318.6 0.43 9. 7... 10. 2 2n A 



AB and C 



1889.68 339.5 13.72 
1899.58 339.6 13.84 



... 10. 1 3« /8 
. . . 10.0 2« A 



Discovered from i8ji to i8gg by S. W. Burnham 



267 



AB and OS 5 1 1 (A) 

O II 

1889.69 66.0 176.51 ... 6.8 2/1 fi 

A very difficult pair of small stars, discovered 
with the 36-inch. Too faint to be given in the 
D.M. I have connected it with another pair in the 
f^eld, 02 511. 



[/3 (XVI). . .(3 (2956). . .|8 {Pm/>. L. O. II). . .Aitken f 



P 729. O. Arg. S. 23124 



■] 







R.A. 23>' 


49 


-14= \ 












Decl. — 


18 


•30' \ 













// 












1877.70 


346.4 


1 1.42 




8.0. . 


. 12.0 


\n 


H 


1891.89 


344-9 


1 1.22 




8.0. . 


, 12.7 


zn 


^ 


1898.85 


344-9 


11.47 




8.0. . 


.11.2 


211 


P 



Discovered with the 18 ^.4 -inch. Without change. 
The magnitude in O. Arg. is 7.0. 

[^(.x)...)3'.../3(3ii4)...^(/'«^. Z. O. II)...] 



P 1224. Lalande 46942 



R.A. 23" 50" S3' 
Decl. + 55* 10' 



1890.74 203.3 
1899.63 201.4 



3-94 
4.10 



6.6. 
6.5. 



13-3 y> ^ 

13.8 yi A 



Discovered with the 36-inch. In D.M. 7.5 m. 
Piazzi XXIII. 236. 

[/3 (XVII)... ^ (iO^-])...^(P,ih. L. O. II)... Aitken ( )...] 



P 280. D.M. (56 = ) 3120 







R.A. 23'' SI"" 50 






Decl. -f- 56° 43 






A and C 


1880.74 


185-9 


/; 

8.08 


1886.90 


193.2 


8.27 


1891.80 


189.8 


7.90 


1898.61 


186.2 


8.24 



'f 



[2.5 



Ml ^ 

211 HI 

12.2 211 fi 

1 ^.O 211 D 



A and B (= 2 3047) 



1832.20 65.6 
1869.68 67.5 



1. 18 
1.02 



8.7 



S.7 yi 2 
9.1 4// J 



1880.74 


70.3 


0.89 






lit 


/3 


1891.80 


73-1 


0.92 


8.1. . 


. 8.4 


271 


/3 


1898.61 


71.0 


1. 14 


8.2. . 


. 8.2 


211 


D 



The small star was discovered with the 9.4-inch 
of the Dartmouth College Observatorv. The close 
pair is probably a binary, but the motion is verv 
slow. The relation of the third star to the system 
is still uncertain. 

[/3 (v).../3 {Moil. Not. XXXV, 31 ) . . ./33. . ./3 (3II4)...)3 {Pub. 
L. O. II). . . Hall (II) . . . Doolittle {Pub. Flower Obsy. l]. . . J 

The measures given of AB, and others, will be 
found in the following additional references : 

[Madler [Fixsiern-Systeme 11) {Dorpat Obsns. xi, XIII, xv) 
...Herschel (Mem. R. A. S. iv)...Secchi {Catalogo di /jsr 
Stelle Doppie). . .OS {Poulkowa Obsns. ix). . .Gledhill, Wilson 
and Seabroke {Mem. R. A. S. XLll)...zl (11). . .Glasenapp 

(HI)...] 



P 730. 27 Piscimn 

R.A. 23'' 52"" 32' } 
Decl. — 4" 13' 1' 



1878.39 


265.8 


1.42 


5-5 - - 


10. 8 


3" 


i3 


1879.03 


264.0 


1.40 


4.9. . 


9-5 


3" 


Cin 


1879.84 


264.4 


1.60 


5-5-- 


I 1.2 


211 


/? 


1886.88 


269.1 


1.78 


5.0.. 


9.6 


211 


LM 


1889.57 


267.4 


1.50 


5.0.. 


'1-3 


3« 


fi 


1898.66 


272.8 


1.66 


6.0. . 


. I 1.7 


3« 


Cg 



Discovered with the i8i/2-inch. Certainly a 
physical system, since the components have a com- 
mon proper motion of o."og4 in the direction of 
232?7 (AuwERs). There is^ very little relative 
chanafe. 



[^ (x)...)3-...)3J.../3 (2957). -./3 (P»b. /.. O. 111. 
LM. ..Cogshall ( )...] 



.CinS... 



P II54- n.-M.(73 ) 1068 







R.A. 23" 


53'" 12^ I 












Decl. + 74° 10' S 








1889.51 




310.1 


ii 
0.9S 


S.o. . 


. 8.2 


3« 


H 


1892.87 


129.7 


0.91 


8.0. . 


. S.2 


2n 


J 


1895.90 


308.0 


0-77 


8+.. 


- s+ 


3" 


A 


1896.93 


3094 


o.SS 






y 


A 



268 



General Catalogue of Double Stars 



Discovered with the 12-inch. Unchanged. 

[/3 (XVI)... /3 (2956)... ;3 {^Pub. L. O. II).. .Jones {Proc. Haz 
erford Coll: Obsy. 1892) . . . Aitken (3596, 3466) . . . ] 



P 731 - Lalande 47033 







R.A. 23h 


53"" 27=^ 


■ ■ 










Decl. — 


8° 28' 






1878.28 


257.8 


// 
1-57 


8.7 


. . 10. 


211 


/8 


1886.80 


262.0 


1.67 


8.5 


■• 9-3 


\)i 


LM 


1888.84 


262.1 


1.36 


8.2 


. . Q.I 


2n 


Lv 


1898.70 


264.6 


1-59 


8.8 


• ■ 9-7 


3« 


A 


1898.72 


265.8 


1.60 


8-5 


. . 9.2 


yi 


Cg 



Discovered with the i8j^-inch. Some motion in 
angle seems probable. 

[/3 (x) ... ;3' ... LM ... Lv' ... Aitken (3585) . . . Cogshall 
( )...] 

P 860. Andromedae 6 



1881.72 107.2 

1881.83 105.4 

1885.82 107.9 

1888.47 106.4 

1898.61 106.7 



Discovered with the 151^ -inch at the Washburn 
Observatory. Lalande 47049. 



R.A. 23'' 


53 


"53= 


\ 






Decl. + 38 


' 12' 


\ 






// 
6.70 




6.8. 


..II. 6 


0,11 


/8 


6.32 




6.5. 


. . I I.O 


2/1 


Ho 


6.66 








211 


HS 


6.85 




6.3- 


..II. 9 


411 


Cor 


6.91 




6.3. 


. . 1 1.0 


yi 


D 



[/3 (xil) .../34 . .. Plough (2978) 
burn Obsy. vi). . . HS ( ) 
Obsy. l)...] 



P 732 



Comstock (Pub. IVash- 
Doolittle (Pub. Flower 



\2. W 


XXIIL 


1086 






R.A. 23" 


54" 18^ 


- 






Decl. + 


7° SO' 








II 
6.10 


8.5. 


. 10.7 


3" 


n 


5-95 


8.5. 


• 9-5 


2« 


iS 


5-84 


8.8. 


.10.3 


i" 


D 


5-95 


8.5. 


.10.7 


III 


li 



1878.35 152.4 

1891.87 152.9 

1898.57 151-8 

1898.84 151. 7 



Discovered with thei8^-inch. Without change. 
The n star of a wide pair. 

[(3 (x).../3'.../3 (3114).. .^ (Pub. L. O. II).. .Doolittle (Pub. 
Flower Ubsy. I ) . . . ] 



P 482, D.M. (62°) 2350 

R.A. 23'> 55"^ 45^ \ 
Decl. + 62° 39' \ 







A ar 


d B 








1877.23 




342.6 


// 
4.07 


9-7- 


.11.0 


2« 


J 


1880.74 


341.6 


4.28 


9-5- 


. 9-8 


111 


i8 


1888.71 


343-8 


4.60 


9.0. 


. 10. 


3" 


i8 


1898.56 


343-0 


4-75 


9.0. 


- 9-5 


211 


D 






A and C 








1880.74 


125-9 


// 
9.46 




.11.8 


m 


^ 


1888.71 


123.9 


9-79 




. 1 1.2 


VI 


13 


1898.56 


122.9 


9.96 




. 10.8 


211 


D 



Discovered with the 6-inch. No material change. 
In D.M. 8.9 m. 

[13 (ix).../3 (Afoi/. Not. xxxviii, 78).../33. ..^ (2875)... 
^ (Pub. L. O. II)... /I (l)... Doolittle (Pub. Flower 
Obsy. I). . .] 



P 733. 85 Pegasi 







R.A. 23" 55-" 54= 


I 










Decl. + 26" 27' S 










A and B 






1878.73 


274.0 


0.67 6.0. 


.12.5 


3« 


^ 


1879.46 


284.6 


0-75 


.11.3 


5« 


^ 


1880.59 


298.3 


0.65 


.10.5 


5" 


a 


1880.79 


297.2 


0.66 




3" 


HI 


1881.54 


3II-5 


0.58 


. 1 1.0 


in 


/8 


1882.62 


89-4 


0.64 


. 9.0 


III 


02 


1883.75 


333± 






III 


/3 


1885.93 


107.0 


o.5± 




111 


HS 


1886.81 


115. 


0.68 




211 


H2 


1886.90 


109.7 


0-79 




3" 


HI 


1886.98 


1 1 1.0 


0.58 




in 


Sp 


1887.91 


119-3 


0.66 




in 


Sp 


1888.69 


126.7 


0-95 




5^' 


/8 


1888.95 


124. 1 


0.83 




3« 


HI 


1888.96 


128.3 


0.70 




7;/ 


Sp 


1889.59 


'34-7 


0.94 


. 1 1.2 


5''' 


/3 


1889.81 


132.2 


0.82 




111 


H2 


1889.90 


137.0 


0.70 




S" 


Sp 


1890.55 


139.0 


0.78 




4« 


^ 


1890.96 


146.4 


0.71 




611 


Sp 


1891.56 


151. 8 


0.79 


. II. 


3" 


i8 


1891.94 


152.8 


0-83 




211 


Sp 



Discovered from •18'] i to i8gg by S. W. Burnham 



J69 



1892.88 


165.4 


0. 


73 


1892.97 


^67. 3 


0-73 


1893.64 


168.3 


0.90 


1893.92 


174.0 


0.88 


1893.96 


176. 1 


0.69 


1894-53 


178.6 


0.84 


1894.59 


181. 3 


0.89 


1894.93 


188.6 


0.65 


1894.98 


177.6 


0.65 6 


1895-53 


191. 2 


1.02 


1895.64 


190.5 


0.83 


1895.71 


185.8 


0.86 5 


1895-73 


198.4 


0-73 


1895.74 


204.8 


0.7 + 


1895.86 


196.3 


0.47 


1896.04 


201.6 


0.73 


1896.75 


200.8 


0.54 


1896.81 


205-5 


0.76 


1896.86 


208.6 


0.60 


1897.59 


212.5 


0.79 


1897.70 


207.5 


0.89 


1897.72 


209.9 


0.70 


1897.74 


226.3 


0.83 


1897-75 


209.9 


0.74 


1897.96 


218.0 


0.61 


1897.97 


216. 1 


0.76 


1898.44 


217-5 


0.79 


1898.80 


225-5 


0-59 


1898.89 


224.8 


o-5± 


1898.94 


225.8 


0.67 


1899.51 


225.6 


0.78 6 
A and C 


C85 1.96 



1 14. 1 


33-03 6 


1852.67 


113 


9 


32 


60 


1865.91 


92 


t 


18 


89 


1868.77 


82 


4 


17 


03 


1869.98 


77 


8 


16 


13 


(870.65 


74 


4 


15 


47 


1874.66 


54 


4 


13 


92 


1876.77 


40 


3 


14 


02 


1877.94 


39 


8 


14 





1878.54 


!,}> 


6 


14 


40 


1878.74 


32 


8 


14 


76 


1879.27 


30 


4 


14 


96 


1880.57 


25 





15 


41 


1881.54 


20 


.8 


16 


29 


1881.88 


19 


8 


16 


54 


1882.62 


•5 


.2 


16 


.98 



6.0 



I 1.8 



Ml 

4« 

2)1 

in 
6n 

S" 
A" 
211 
211 

4" 

10// 

6// 

2!l 

I// 

271 
6 It 
I" 

3« 

211 

8;/ 
\)i 

Z>^ 
\n 
4« 

3« 
\n 

3« 
2n 
\n 

yi 

4« 



Bar 
Sp 

Schaeb 

Bar 

Sp 

Bar 

Schaeb 

Sp 
Lew 

Schaeb 

Bar 
A 

See 

Moiil- 
ton 

Lew 

Sp 

A 

Schaeb 
Hussey 
Schaeb 

Dob 

A 

Doo 

Hussey 

Sp 

Lew 

A 

Lew 

Doo 

Sp 

A 



8.5 \n 02 

m 02 

I// 02 

\n 02 

2on Bru 

25« Bru 

in 02 

\ti 02 

\)i Fliii 

9.0 4;/ /3 

9.0 w J 

9.0 8// /? 

V fi 

A" fi 

1// \V\g 

iti 02 



882 
883 
886 
886 
888 
889 
889 
890 
891 
891 
895 
895 
896 
897 
897 
898 
898 



1878 
1880 
i888 
1891 
1897 

1897 
1898 
1898 



77 
54 
24 
99 
67 

50 
82 
52 
56 
94 
06 
68 

75 
56 
82 

49 
69 



96 
56 
69 
90 
56 
82 

47 
69 



17 
1 1 

7 
6 
o 

358 
358 
356 
354 
354 
350 
348 
347 
346 
345 
344 



344-5 



277.1 
278.0 
283.8 
285.4 
288.0 
288.0 
288.4 
288.5 



17-34 
17-34 
19.84 
21.15 
21.71 
22.66 
22.70 

23-59 
24-58 
25.02 
28.86 
29.27 
30.48 
31-49 
31-74 

32-53 
32.90 



. . . \ii Seag 

y, H2 

I" Kn,i< 

5;/ /? 

. . . 9.0 4;/ fi 

... 2n Lv 

y, fi 

3;/ yS 

8// /? 

... I// Lew 

. . . 8.8 yi A 

... 271 \ 

... 271 A 

217 fi 

y, fi 

... 211 A 



A and I) 



6i-73 
64.25 
72.02 

75-09 
81.89 
82.54 

83-29 
83.86 



•13 
- 12.5 
. I 2 

■ 13-2 



• 13-0 



III 

111 

A" 

211 

2V 
211 

211 



A 
A 



One of the most important and most interesting 
of the known binary systems. The shortness of 
its period, the rapid movement in space of both 
components, the relative nearness of this system to 
our own, and the extreme inequality in magnitude 
and closeness of the stars, all combine to give this 
a leading place among the binary stars. It is at 
all times an object of considerable difficultv, and 
the reliable observations will necessarilv be con- 
fined to the larger refractors. It is an excellent 
test for the definition of any object glass, however 
large, and no instrument, whatever its aperture, can 
deal with a pair of this class unless the figure of the 
objective will compare favorablv with the .\lvan 
Clark standard. 

The close companion was discovered with the 
i8>^-inch of the Dearborn Observatory while meas- 
uring the 9 m optical companion. The distant com- 
panion had been measured on two nights before 
the close star was detected. The third night was 
perhaps of unusual steadiness, as, in addition to 85 
Pcgasi, four other first-class stars were discovered 



270 



General Catalogtie of Double Stars 



on the same night — 64 Pegasi, 72 Pegasi, -q Pis- 
ciuin, and B.A.C. i roi (/3 533). 

Four orbits have been computed of this pair. 
The dates of the last measures made use of, and the 
periods are : 

22.3 years A. /. 185 

17.49 " ^. iV. 3145 

24.0 " Evolution of the 

Biliary Systems 

25-1 " 



1888 


Schaeberle 


1892 


Glasenapp 


1895 


See 


1899 


Burnham 



The principal results, including some from merid- 
ian observations, are : 

Argelander 

Madler - 

Brunnow - 

Schaeberle 

Gore 

O. Struve 

Burnham - 

Auwers - 

Porter 



1 390 HI 135. 1 


1.376 ' 


' 133-3 


1.259 ' 


' 133-6 


1-305 ' 


' 140.3 


1. 221 ' 


' 141. 2 


1.289 ' 


' 139-2 


1.286 ' 


' 139-5 


1.288 ' 


' 139-5 


1.287 ' 


' 138.9 




-2W 



85 Pegasi. fl 733. 



The elements of the several orbits are 





P 


T 


e 


a 


n 


'■ 


A 


Schaeberle 

Glasenapp 

See 

Burnham 


22.3 

17-5 
24.0 

25-7 


1884.0 
1884.2 
1883.8 
1883.7 


0.35 

o.i6- 
0.39 
0.43 


0.96 
0.80 
0.89 
0.78 


306.1 

307.3 
116.3 

123.S 


68.°6 
66.7 
SS-6 
49.0 


70.3 

69.7 

265.4 

261.5 



The last orbit is shown in the accompanying dia- 
gram. 

'I'he system has a very large proper motion, and 
its value is known with extreme accuracy from 
micrometrical measures of the distant companion. 



A comparison of the measures of D of 1878-80 
with those of 1897-8 gives i ['30 in i36?8 for the 
movement of A. This is a very faint star, and the 
close agreement with the other results is sufhcient 
to show that C has no proper motion of its own. A 
similar comparison of the two measures of C by 
OS in 1 85 1-2 with the two sets of measures in 1898 
gives i!28i in i39'?2. It is worthy of note that 
the distances of C at these points, separated by an 
interval of forty-six years, differ by only one tenth 
of a second of arc. 

1/3 (X). . .p\. ./33. . ./34. . ./3 (2319,2334,2875.2957, 3048,3114) 
...(3 {Pub. L. O. 11)... /3 [A. J. 246),.. Hall (n)...02 
[Potilkoiua C/iOTJ-. [x, pp. 119, 146)... Sp (in) .. .Barnard 



Discovered from i8ji to i8gg by S. W. Burnham 



271 



(^. /. 447). . .Schaeberle {A.J. 185,246,323,391,420)... 
Doberck (3466). .. Lewis (G^;v^«t£/zV/i Obsns. 1894, 1895) 
{Mon. Not. LVI, 359; LIX, 400). . .Aitken (3466,3585) 
{Ast. Soc.Pac. VII, 305) {A.J. 429). . . Hussey (A.J. 397, 
427). . .Doolittle {A.J. 416). . .Aitken ( ). . .] 

The following relate to the distant star C : 

[Brunnow (Dunsink Obsns. Part 2) ( Vierl. der Astron. 
Gesell. IX, 38). . . Argelander (Beob. Sternwarte du Bonn vi) 
. . .Flammarion (Etoiles Doubles et Multiples) {Sid. Mess, in, 
213) {L Astronomie in, 176). . .Engelhardt {Obsns. Astron. n) 
. . . Bigourdan {Paris Obsns. 1883). . .Seagrave {Sid. Mess. 11, 
258). . .A (i). . .Gore {Mon. Not. xlix, 361). . .Lv {A.J. 382) 
{Proc. Haverford Coll. Obsy. 1891) Comstock (/"i^^. Washbiirn 
Obsy. x). . .Glasenapp (3145)... HS ( )... Everett {Mon. 
Not- LVI, 464)... See (3339) {A.J. 359,378) {Evolution of 
Binary System) . . . ] 



P 281. Lalande 47148 







R 


A. 23" 


56"' 38' 












D 


eel. + 


1° 28' 












A and B 








1877.82 



2 17.0 




I. 12 


1-^ 


. . II.O 


211 


/3 


1881.73 


212.6 




1.25 


7-5 


. . 9.2 


211 


/? 


1885.97 


203.7 




1.20 






111 


HS 


1888.89 


209.0 




1-35 


8.0 


• • 9-3 


in 


Lv 


I89I.6I 


208.8 




1-25 


7-0 


. . 10.2 


y 


^ 


1893.46 


207.9 




1.06 






bn 


Sp 


1897.96 


203.3 




1-53 






m 


Lew 


1898.73 


203.2 




1-53 


7.2 


. . 10. 


3« 


A 


1898.85 


199.8 




1.38 


7-3 


.. 9.8 


4« 


/? 



A and C (= H 998) 



• 13 


I« 


H 


.11.0 


2)1 


/? 


. I 1.2 


2)1 


^ 




111 


H2 


.11.9 


i" 


^ 


. 12.0 


2)1 


A 


. 10.8 


3;; 


/8 



825 330dz 2S± 

877-82 335.8 30.44 

881.73 336.7 30.85 

885.97 334.3 31-20 

891-61 334-6 31.82 

898.70 334.4 32.24 

898.86 334.4 32.63 



Discovered with the 9.4-inch at the Dartmouth 
College Observatory. The binary character of the 
close pair is established by the measures. The 
motion is retrograde, with perhaps a slow increase 
in the distance. The system has a proper motion 
of o ['079 in the direction of 154?! (Boss). This 
movement is in a direction opposite the Herschel 
companion, and the distance of that star is there- 
fore increasing annually by the proper motion of 
AB. At one time these stars must have formed a 
close pair. 

f(3 (v). . ./3 {Mon. Not. xxxv, 31). . .(3-. . ./3't. . ,,8 (3114). . .^ 
[Pub. L. O. n). . .Sp (in). . .Lewis (Mon. Not. i.ix, 400) 
...Aitken (3585)... IIS ( )...) 



P 861. D.^L (68') 1422 



i»8i.53 177.4 
1887.80 177.8 



K.A. 23'' 56'" 55= \ 








Decl. +69' 2' f 








1.30 9-4- •• 


9-7 


A" 


P 


1.78 9.3... 


9-5 


2)1 


Com 



Discovered with the 15)^ -inch at the Washburn 
Observatory. 
[i3 (xil). . ./34. . .Comstock (Pub. Washburn Obsy. vi). . .] 



P 862, W== XXIII. 1245 







R.A. 23>' 58"' 36' [ 












Decl. -f 37° 30' \ 








1881.74 


104.9 


II 

0.54 8.5.. 


. 8.8 


2« 


13 


1888.32 


107-5 


0.55 8.5.. 


. 9.0 


2« 


Com 


1899.57 


115-5 


0.50 8.7.. 


• 9-1 


y 


A 



Discovered with the 151^ -inch at the Washburn 
Observatory. Apparently slow motion in angle. 
[/3(xil). . ./S-*. . .Comstock (Pub. Washburtt Obsy. vi). . .Aitken 
( )--.] 

P 997- Lalande 47215 







R.A. 23>' 


58 


:--\ 










Decl. +45 






1879.80 


340.2 


4-25 




9 ... 10 


2 71 


HI 


1880.73 


339-7 


4.02 




7.9. .. 8.9 


4« 


/? 


1885.76 


340.8 


4.08 






yi 


HI 


T 891.72 


340.7 


4.29 




8 ... 8 


211 


Hi 


1895.69 


339-8 


4.12 




7.9. .. 9.1 


yi 


A 


1895.84 


338.0 


4.09 






in 


Com 


1898.75 


338.9 


4.22 






V 


Hu 



Discovered with the 1 8^ -inch. Probably no mo- 
tion . The last measures of Hall are erroneously cred- 
ited to 02 547, which is in the field 8' n and 26=/. 

[(3 (xill). . .(33. . .Hall (I, II) . . .Aitken (Ast. Soe. Pac. vii, 305) 
. . . Comstock ( Pub. Washburn Obsy. x ) . . . Hussev 
( )•■■] 

P 863- D.M. (72*) I 139 







R.A. 23^ 


59 


m ^2= 












Decl. -4- 


72 


° 55 








1881.57 




123.7 


1.60 




9.2. 


. 1 1.0 


y 


/3 


1888.02 


121. 6 


1.98 




8.S. . 


. 10.2 


A" 


Com 


1898.68 


119-3 


2.03 




9.0. . 


. 10.0 


3« 


A 



Discovered with the 15)^ -inch at the Washburn 
Observatory. 

1|3 (xii). . .^■i ... Comstock (Pub. Washburn Obsy. vi) . . . 
Aitken (3585)...! 



INDEX 



INDEX 



p 


R.A. 


Page 


P 


R.A. 


Page 


P 


R.A. 


Pagi: 


CATALOGUE I 




30 


13'' 52"' 26= 


131 


60 


20*^ 20"" 27" 


208 


I 


o'' 45"" SO' 


12 


31 


14 46 59 


138 


61 


20 22 I 


208 


2 


I 3 46 


17 


32 


IS 14 55 


142 


62 


20 23 6 


209 


3 


I 9 39 


19 


33 


IS 24 43 


143 


63 


20 24 33 


209 


4 


I 14 59 


19 


34 


15 24 43 


143 


64 


20 39 18 


215 


5 


I 32 47 


23 


35 


IS 36 I 


144 


65 


20 41 52 


217 


6 


I 38 43 


24 


36 


15 46 24 


145 


66 


20 42 59 


217 


7 


I SI 43 


27 


37 


15 55 15 


146 


67 


20 45 37 


218 


8 


2 14 59 


30 


38 


15 55 39 


146 


68 


20 55 36 


220 


9 


2 39 40 


32 


39 


16 57 


147 


69 


20 57 II 


220 


10 


2 44 23 


33 


40 


16 4 29 


148 


70 


20 58 52 


222 


11 


2 56 49 


36 


41 


16 17 26 


150 


71 


21 4 30 


224 


12 


3 18 47 


38 


42 


16 35 20 


153 


72 


21 23 43 


230 


13 


5 28 36 


66 


43 


16 42 19 


153 


73 


21 25 14 


230 


14 


5 34 48 


69 


44 


17 9 12 


160 


74 


21 29 40 


231 


15 


5 41 45 


70 


45 


17 13 29 


163 


75 


21 49 40 


238 


i6 


5 56 12 


74 


46 


17 18 7 


164 


76 


21 23 22 


246 


17 


6 2 48 


74 


47 


17 54 52 


169 


77 


22 27 50 


247 


i8 


611 7 


77 


48 


i8 13 55 


177 


78 


23 2 9 


255 


19 


6 36 36 


81 


49 


18 17 3 


178 


79 


23 II 24 


258 


20 


6 43 25 


82 


50 


18 34 9 


181 


80 


23 12 45 


259 


21 


7 21 35 


89 


51 


18 41 42 


182 


81 


23 28 59 


263 


22 


7 25 30 


90 


52 


18 58 54 


187 


CA 


TALOGUE II 




23 


7 56 14 


94 


53 


19 29 48 


194 


82 1 


I 20 29 

1 


21 


24 


8 48 24 


103 


54 


19 34 49 


195 


83 


2 40 1 


32 


25 


10 15 46 


109 


55 


19 40 30 


197 


84 


3 '0 5 


38 


26 


II 17 42 


114 


56 


19 58 47 


201 


85 


3 48 34 


44 


27 


12 13 59 


119 


57 


19 59 55 


201 


86 


4 S 30 


47 


28 


12 23 53 


120 


59 


20 10 36 


204 


87 


4 15 iS 


47 



276 



General Catalogue of Doiible Stars 



p 


R.A. 


Page 


P 


R.A. 


Page 


P 


R.A. 


Page 


88 


4" 31" 34' 


52 


120 


i5h 5m js 


148 


151 


2o>' 31- 55 = 


211 


89 


5 31 29 


67 


121 


15 32 20 


143 


152 


20 39 18 


216 


90 


5 30 56 


67 


122 


IS 32 59 


143 


153 


20 40 10 


216 


91 


5 40 29 


70 


123 


16 47 29 


154 


154 


20 46 6 


218 


92 


5 40 57 


71 


124 


1740 


158 


155 


20 47 24 


218 


93 


5 41 44 


71 


125 


17 4 43 


159 


156 


20 57 39 


221 


94 


5 44 9 


72 


126 


17 12 54 


162 


157 


21 31 


222 


95 


5 46 9 


73 


127 


17 13 25 


163 


158 


21 I 37 


223 


96 


6 ID 29 


77 


128 


17 19 24 


164 


159 


21 621 


225 


97 


6 18 29 


78 


129 


17 21 14 


165 


160 


21 7 48 


225 


98 


6' 26 46 


80 


130 


17 49 24 


168 


161 


21 10 53 


226 


100 


6 54 14 


84 


131 


18 6 42 


174 


162 


21 12 14 


226 


lOI 


7 46 13 


92 


132 


18 4 7 


173 


163 


21 12 47 


226 


102 


811 


98 


133 


18 20 15 


178 


164 


21 19 13 


229 


103 


8 49 2 


103 


134 


18 21 59 


179 


165 


21 27 55 


231 


104 


9 5 19 


104 


135 


18 31 16 


180 


166 


21 30 17 


231 


105 


9 17 40 


105 


136 


18 2,7 


181 


167 


21 31 


231 


106 


14 42 45 


137 


137 


18 49 48 


184 


168 


21 47 7 


237 


CA 


TALOGUE III 




138 


19 6 37 


188 


169 


21 50 49 


239 


107 


24 31 


5 


139 


19 7 12 


188 


170 


22 2 31 


241 


108 


27 43 


8 


140 


19 10 12 


189 


171 


22 7 51 


242 


109 


34 27 


10 


141 


19 16 50 


190 


172 


22 17 52 


244 


III 


10 45 II 


1 1 1 


142 


19 21 30 


191 


173 


22 22 24 


245 


112 


12 54 46 


121 


143 


19 26 39 


192 


174 


22 22 58 


246 


113 


13 23 10 


126 


144 


19 ii 3 


195 


175 


22 29 49 


248 


114 


13 28 


126 


145 


19 36 31 


196 


176 


22 37 5 


250 


115 


13 39 24 


128 


146 


19 40 6 


197 


177 


22 45 55 


252 


116 


14 13 3 


132 


147 


19 42 16 


198 


178 


22 48 57 


252 


117 


14 24 43 


135 


148 


19 45 27 


198 


179 


22 54 26 


254 


118 


14 47 I 


138 


149 


19 52 47 


200 


180 


23 2 9 


256 


119 


14 59 10 


140 


150 


20 5 56 


203 


181 


23 7 31 


256 



l82 

183 

184 

185 

186 
188 
189 

190 

191 

192 

193 
194 

195 

196 

197 
198 
199 

200 
201 
202 
203 
204 
205 
206 
207 
208 
209 
210 
211 
212 



R.A. 

23'' 10"" 52= 

CATALOGUE IV 

I 47 21 
4 22 45 
4 31 24 

4 40 10 

5 II 47 
5 14 33 
5 14 38 
5 17 19 

5 40 52 
699 

6 28 4 

6 37 26 

7 6 27 
770 
7 20 38 
7 19 57 
7 30 40 
7 33 41 
7 56 59 

7 57 41 
872 

8 27 54 
8 30 17 
8 33 16 
8 33 51 
8 35 24 
8 5! 18 

8 55 44 
91011 



Page 
258 

26 

49 
52 
52 
61 
62 
62 
62 
70 
76 
80 



90 
90 
95 
95 
97 
99 
100 
100 



103 

103 
104 



213 
214 

215 
216 
217 
218 
219 
220 
221 
222 
223 
224 
225 
226 
227 
228 
229 

230 

231 
232 

233 
234 
235 
236 

237 
238 

239 
240 
241 
242 



Index 
R.A. 

gh 22"" 25^ 

9 35 52 

9 48 41 

951 20 

10 I 17 

10 I 41 

10 15 56 

11 6 33 
13 6 54 
13 10 55 

13 38 58 

14 7 38 
14 18 48 

14 32 5 

15 12 7 
15 12 38 

I 23 14 27 

CATALOGUE V 

o 30 59 

o 38 2 

o 43 38 

o 49 9 

54 36 

1 3 29 
I 5 6 

13 20 59 

14 27 I 

14 51 33 

15 39 32 

16 48 23 

17 17 21 



Page 

106 
107 
107 
107 
108 
108 
109 

113 
124 

125 
128 
132 
134 
136 
141 
142 
260 



10 
12 
14 
15 
17 
17 
126 

135 
139 
145 
154 
164 



243 
244 

245 
246 
247 
248 
249 
250 

251 
252 

253 
254 
255 
256 

257 
258 

259 
260 

261 
262 
263 
264 
265 
266 
267 
268 
269 
270 
271 
272 
273 



R.A. 



18'' o" 55^ 



18 I I 

18 2 21 

18 10 34 

18 25 36 

19 12 39 

19 32 13 

20 45 51 

21 4 53 
21 12 58 

048 
o 5 14 
o 5 38 
o 13 53 

33 'il 

1 5 33 
I 46 20 

1 46 45 

2 38 32 

2 40 33 

3 48 50 
18 21 43 

18 44 38 

19 52 15 

20 35 22 
20 43 II 

20 58 39 

21 7 3' 
21 12 49 
21 17 50 
2> 28 33 



277 
Page 

171 
171 
172 

175 
179 
190 

195 
218 
224 
227 
2 



4 

10 

18 

26 

26 

32 

33 

44 

178 

1S3 

199 

214 

217 

221 

225 
226 
22S 
231 



278 



General Catalogue of Double Stars 



p 


R.A. 


Page 


P 


R.A. 


Page 


P 


R.A. 


Page 


274 


z\^ 36™ 26" 


233 


304 


2h 24m 5s 


31 


335 


8'' 41'° 58= 


102 


275 


21 S3 38 


239 


305 


2 30 53 


31 


336 


9 611 


104 


276 


21 53 56 


239 


306 


2 36 53 


32 


337 


9 16 54 


los 


277 


22 34 14 


249 


307 


2 40 29 


33 


338 


9 17 15 


105 


278 


23 15 20 


260 


308 


3 32 4 


40 


339 


9 25 17 


106 


279 


23 36 30 


264 


309 


4 I 22 


46 


340 


II 23 49 


115 


280 


23 51 50 


267 


310 


4 14 21 


47 


341 


12 57 20 


122 


281 


23 56 38 


271 


311 


4 21 52 


48 


342 


13 8 49 


124 


282 


17 8 31 


159 


312 


4 42 },(> 


53 


343 


13 45 8 


129 


283 


17 54 38 


169 


313 


4 49 12 


56 


344 


13 52 22 


131 


284 


18 9 13 


174 


314 


4 53 39 


57 


345 


14 34 40 


136 


285 


18 9 26 


175 


315 


4 53 54 


57 


346 


14 41 50 


137 


286 


18 8 4 


174 


316 


4 46 52 


56 


347 


14 47 18 


138 


287 


18 59 54 


187 


317 


5 8 54 


60 


348 


14 55 40 


139 


288 


20 33 31 


214 


318 


5 10 15 


61 


349 


15 2 52 


140 


289 


21 13 22 


227 


319 


5 21 15 


^1, 


350 


15 8 29 


141 


290 


22 20 31 


244 


320 


5 23 6 


64 


351 


15 10 20 


141 


291 


22 21 39 


245 


321 


5 33 59 . 


68 


352 


15 10 42 


141 


292 


18 6 35 


173 


322 


5 34 40 


69 


353 


15 13 55 


142 


293 


18 45 39 


183 


323 


6 8 44 


76 


354 


15 36 


144 


294 


20 9 44 


204 


324 


6 44 45 


82 


355 


16 4 14 


148 


295 


20 II 


204 


325 


6 46 59 


83 


356 


16 29 42 


152 


296 


20 20 27 


208 


326 


6 49 57 


83 


357 


16 59 52 


15s 


297 


20 24 33 


2og 


327 


6 52 28 


84 


358 


17 43 10 


167 


298 


20 34 4 


214 


328 


7 I 3 


85 


359 


19 7 


188 


299 


18 10 48 


176 


329 


7 4 9 


85 


360 


19 14 19 


190 


300 


18 II 40 


176 


330 


7 13 27 


87 


361 


19 45 7 


198 


CA 


TALOGUE VI 




331 


7 15 2 


88 


363 


20 24 28 


209 


301 


43 21 


1 1 


332 


7 22 13 


89 


364 


20 41 52 


216 


302 


51 55 


14 


333 


7 56 7 


94 


365 


20 43 36 


217 


303 


I 3 10 


16 


334 


8 2 3 


96 


366 


20 44 49 


217 



Index 



279 



p 


R.A. 


Page 


P 


R.A. 


Page 


P 


R.A. 


Page 


367 


20'' 49"^ 


54^ 


218 


397 


jh Qm J ^5 


16 


428 


2oh i-n 5S 


202 


368 


21 I 


I 


222 


398 


I 4 52 


17 


429 


20 I 27 


202 


369 


21 22 


31 


230 


399 


I 21 48 


21 


430 


20 6 48 


203 


370 


21 28 


15 


231 


400 


3 5 18 


37 


431 


20 IS 25 


206 


371 


21 32 


58 


232 


401 


3 44 10 


43 


432 


20 20 13 


208 


372 


21 35 


48 


233 


402 


4 17 3 


48 


433 


20 23 36 


209 


373 


21 37 


I 


234 


403 


4 19 18 


48 


434 


20 28 5 


211 


374 


21 38 


59 


234 


404 


4 49 50 


56 


435 


20 33 14 


214 


375 


22 4 


29 


241 


405 


5 42 22 


71 


436 


22 6 43 


242 


376 


22 8 


I 


242 


406 


5 43 I 


72 


CATALOGUE VIII 




377 


22 1 1 


22 


243 


407 


8 45 50 


102 


437 


2 12 26 


29 


378 


22 12 


50 


243 


408 


8 48 58 


103 


438 


19 27 3 


192 


379 


22 16 





243 


409 


8 54 55 


103 


439 


19 55 57 


201 


380 


22 22 


2 


245 


410 


9 4 30 


104 


440 


20 I 27 


202 


381 


22 27 


22 


247 


411 


10 30 25 


1 10 


441 


20 12 37 


205 


382 


22 48 


18 


252 


412 


12 2 10 


118 


442 


20 12 4 


205 


383 


22 49 


57 


253 


413 


13 42 16 


129 


443 


20 19 12 


208 


384 


22 56 


14 


254 


414 


14 34 42 


136 


445 


20 58 23 


221 


385 


23 4 


31 


256 


415 


15 44 50 


145 


446 


21 15 44 


228 


386 


23 21 


13 


260 


416 


17 10 47 


160 


447 


21 18 46 


229 


387 


23 28 


8 


262 


417 


17 52 13 


168 


448 


21 24 36 


230 


388 


23 28 


52 


262 


418 


18 I 28 


171 


449 


21 34 42 


232 


389 


23 35 


18 


264 


419 


18 25 42 


179 


450 


22 38 40 


250 


390 


23 41 


33 


265 


420 


18 25 53 


180 


451 


22 46 n 


252 


CA 


TALOGUE 


VII 




421 


18 48 3 


184 


452 


22 51 58 


254 


391 


3 


14 


I 


422 


19 7 43 


189 


CA 


TALOGUE IX 




392 


10 


31 


3 


423 


19 20 18 


191 


453 


1 37 7 


24 


393 


12 


12 


3 


424 


19 23 5 


191 


454 


S 10 12 


98 


394 


24 


16 


5 


425 


19 52 15 


200 


455 


9 8 34 


104 


395 


31 


12 


9 


426 


19 59 13 


201 


456 


11 30 44 


115 


396 


56 


14 


15 


427 


19 59 13 


201 


457 


II 55 15 i 


iiS 



28o 



General Catalogue of Double Stars 



p 


R.A. 


Page 


P 


R.A. 


Page 


P 


R.A. 


Page 


458 


ii"^ 58"" 8= 


ii8 


488 


Qh j^m J25 


4 


519 


2h 23!" 38S 


31 


459 


12 41 58 


121 


489 


19 40 


4 


520 


2 30 4g 


• 31 


460 


13 18 40 


125 


490 


29 4 


8 


521 


2 34 59 


32 


461 


13 50 36 


130 


491 


32 54 


9 


522 


2 35 36 


32 


462 


14 23 46 


134 


492 


38 27 


10 


523 


2 41 55 


33 


463 


18 10 44 


176 


493 


39 4 


1 1 


524 


2 46 8 


34 


464 


18 21 45 


178 


494 


40 53 


1 1 


525 


2520 


35 


465 


18 41 39 


182 


495 


42 25 


1 1 


526 


3 22 


36 


466 


18 59 34 


187 


496 


45 18 


12 


527 


3 35 


36 


467 


19 39 24 


197 


497 


45 55 


13 


528 


3 2 25 


37 


468 


19 39 58 


197 


498 


46 33 


13 


529 


3 8 9 


37 


469 


ig 54 28 


200 


499 


49 28 


14 


530 


3 7 18 


37 


470 


20 3 41 


203 


500 


48 53 


13 


531 


3 17 26 


38 


471 


20 41 I 


216 


501 


I 40 


16 


532 


3 27 25 


40 


472 


20 57 9 


220 


502 


I 213 


16 


533 


3 28 9 


40 


473 


21 I 24 


223 


503 


I 10 54 


19 


534 


3 33 I 


41 


474 


22 I 2 


240 


504 


III 9 


19 


535 


3 36 47 


41 


475 


22 6 15 


241 


505 


I 18 I 


20 


536 


3 39 8 


42 


476 


22 8 41 


242 


506 


I 25 4 


22 


537 


3 39 54 


42 


477 


22 10 28 


243 


507 


I 2g 18 


22 


538 


3 40 51 


42 


478 


22 23 8 


246 


508 


I 32 27 


23 


539 


3 43 13 


43 


479 


22 26 29 


247 


509 


I 37 25 


24 


540 


3 48 21 


44 


480 


22 3S 18 


249 


510 


I 42 4 


25 


541 


3 48 53 


44 


481 


22 56 23 


255 


511 


I 42 40 


25 


542 


3 50 21 


44 


482 


23 55 45 


268 


512 


I 47 12 


26 


543 


3 51 25 


44 


C^ 


LTALOGUE X 




513 


I 52 7 


27 


544 


3 57 II 


45 


483 


2 50 


I 


514 


I 53 57 


28 


545 


3 59 24 


45 


484 


3 29 


I 


515 


I 54 38 


28 


546 


4 3 12 


46 


485 


4 29 


2 


516 


I 5g 6 


28 


547 


4 7 25 


46 


486 


8 ig 


3 


517 


2 18 54 


30 


548 


4 10 58 


47 


487 


010 18 


3 


518 


223 II 


31 


549 


4 23 2 


49 



Index 



281 



R.A. 



550 


4" 


29" 


2= 


551 


4 


42 


52 


552 


4 


45 


4 


553 


4 


49 


37 


554 


4 


53 


22 


555 




8 


47 


556 




18 


39 


557 




23 


16 


558 




25 


52 


559 




40 


36 


560 




41 


37 


561 




41 


18 


563 




47 


44 


564 




54 


59 


565 


6 


3 


41 


566 


6 


8 


41 


567 


6 


9 


34 


568 


6 


18 


36 


569 


6 


19 


37 


570 


6 


23 





571 


6 


33 


2 


572 


6 


55 


24 


573 


6 


56 


II 


574 . 


7 


I 


18 


575 


7 


9 


21 


576 


8 


13 


59 


577 


7 


14 


21 


578 


7 


21 


47 


579 


7 


26 


40 


580 


7 


37 


58 


581 


7 


57 


43 



Page 

49 
53 
54 
56 
57 
59 
63 
64 
65 
70 

71 
71 
73 
74 
75 
76 
76 
78 
79 
79 
81 

84 
84 
85 
87 
99 
87 
89 
90 
9' 
95 



P 

582 
583 
584 
585 
586 

587 
588 

589 
590 
591 
592 
593 
595 
596 
597 
598 
599 
600 
601 
602 
603 
604 
605 
606 
607 
608 
609 
610 
611 
612 
613 



R.A. 

f 58'" 6' 

8 3 18 

8 33 3 

8 34 20 

8 41 49 

8 45 41 

9 10 30 
9 20 15 
9 21 22 
9 23 33 
9 49 16 

10 4 44 

10 41 48 

10 43 2 

10 48 20 

10 54 32 

11 o 47 
II 10 53 
II 23 15 
II 40 39 
II 42 28 

11 42 56 

12 13 58 
12 19 48 

12 35 2 

13 4 33 
13 4 30 
13 17 28 

13 31 15 

13 33 40 

13 46 3 



Page 

96 

97 
100 

lOI 
lOI 

102 
105 
105 
106 
106 
107 
109 
I II 
I II 
III 
112 
"3 
114 
114 
116 
116 
116 
119 
119 
120 
124 
124 
125 
127 
127 

129 



p 

614 

615 

616 

617 

618 

619 
620 
621 
622 
623 
624 
625 
626 

627 

628 

629 
630 

631 

632 
633 
634 

635 
636 

637 

638 

639 

640 
641 
642 
643 
645 



R.A. 

13^ 48"' 2= 

14 17 52 

14 27 15 

14 42 23 

15 5 23 
15 37 34 
15 38 54 
15 45 55 
15 51 36 

15 54 51 

16 15 42 

16 19 53 

16 24 16 

16 45 43 

17 13 55 
17 13 o 
17 14 46 
17 33 47 
17 43 32 
17 53 49 
17 54 38 

17 56 41 

18 2 4 
18 3 54 
iS 4 19 
1 8 II 40 
iS 16 3 
18 16 42 
iS 26 45 
18 29 41 
iS 38 I 



Page 

130 

134 
13s 
137 
141 

144 
144 
145 
146 
146 
149 
150 
151 
154 
163 
163 
163 
166 
167 
168 
i6q 
170 
172 
172 

173 
176 

177 
177 
180 
I So 
iSi 



28; 



General Catalogue of Doiibie Stars 



p 


R.A. 


Page 


P 


R.A. 


Page 


P 


R.A. 


Page 


646 


iS"- 49" 


41 = 


184 


678 


20'' 


54" 


20^ 


219 


709 


22h 25"! 


26^ 


249 


647 


18 50 


29 


185 


679 


21 


I 


24 


223 


710 


22 36 


57 


250 


648 


18 52 


30 


185 


680 


21 


I 


52 


223 


711 


22 39 


29 


251 


649 


18 54 


24 


186 


681 


21 


7 


40 


22s 


712 


22 49 


58 


253 


650 


18 26 


20 


192 


682 


21 


8 


30 


225 


713 


22 50 


55 


253 


651 


19 25 


44 


192 


683 


21 


20 


43 


229 


714 


23 7 


56 


257 


652 


19 27 


16 


193 


684 


21 


23 


53 


230 


715 


23 8 


25 


257 


653 


19 28 


14 


193 


685 


21 


24 


31 


230 


716 


23 9 


15 


257 


654 


19 29 


24 


193 


686 


21 


33 


43 


232 


717 


23 12 


II 


259 


655 


19 29 


55 


194 


687 


21 


34 


53 


233 


718 


23 16 


3 


260 


656 


19 35 


48 


196 


688 


21 


37 


43 


234 


719 


23 18 


22 


260 


657 


19 38 


40 


197 


689 


21 


38 


43 


234 


720 


23 28 





262 


658 


19 39 


I 


197 


690 


21 


39 


50 


237 


721 


23 30 


7 


263 


659 


19 48 


48 


199 


691 


21 


40 


4 


237 


722 


23 32 


33 


263 


660 


20 9 


40 


204 


692 


21 


44 


49 


237 


723 


23 34 


32 


263 


661 


20 12 


39 


205 


693 


21 


49 


54 


238 


724 


23 34 


46 


264 


662 


20 14 





206 


694 


21 


58 


6 


240 


725 


23 36 


36 


264 


663 


20 17 


19 


207 


695 


21 


58 


33 


240 


726 


23 40 


24 


26s 


664 


20 18 


36 


207 


696 


21 


58 


43 


240 


727 


23 41 


26 


265 


665 


20 17 


55 


207 


697 


22 


I 


27 


240 


728 


23 46 


7 


266 


666 


20 ig 


9 


207 


698 


22 


5 


55 


241 


729 


23 49 


14 


267 


668 


20 25 


49 


210 


699 


22 


7 


45 


242 


730 


23 52 


32 


267 


669 


20 26 


20 


210 


700 


22 


21 


35 


244 


731 


23 53 


27 


268 


670 


20 27 


17 


21 1 


701 


22 


22 


10 


245 


732 


23 54 


1.8 


268 


671 


20 29 


33 


21 1 


702 


22 


24 


43 


246 


733 


23 55 


54 


268 


672 


20 32 


8 


214 


703 


22 


26 


21 


247 


CA 


TALOGUE 


XI 




673 


20 36 


29 


215 


704 


22 


27 


3 


247 


734 


46 


47 


13 


674 


20 37 


53 


215 


705 


22 


28 


18 


248 


735 


58 


S3 


15 


675 


20 38 


31 


215 


706 


22 


29 


30 


248 


736 


I 39 


38 


24 


676 


20 41 


21 


216 


707 


22 


28 


46 


248 


738 


2 18 





30 


677 


20 42 


23 


217 


708 


22 


30 


42 


248 


739 


2 19 


33 


31 



Index 



283 



p 


R.A. 


Page 


P 


R.A. 


Page 


P 


R.A. 


Page 


740 


2'' 40"^ 


29= 


33 


771 


22'' 29"" 58= 


248 


801 


13'' 40"" 43' 


129 


741 


2 51 


58 


35 


772 


22 49 18 


253 


802 


13 43 48 


129 


742 


3 17 





38 


773 


23 12 


255 


803 


14 4 46 


131 


743 


3 46 


36 


43 


774 


23 25 19 


262 


804 


14 31 42 


13s 


744 


4 16 


32 


47 


775 


23 30 45 


263 


805 


14 32 58 


136 


745 


4 19 


II 


48 


CATALOGUE XII 




806 


14 33 27 


136 


746 


4 27 


13 


49 


776 


10 S3 


8 


807 


14 36 37 


137 


747 


4 28 


50 


49 


777 


14 56 


4 


808 


14 51 53 


139 


748 


4 46 


4 


55 


778 


19 43 


4 


809 


15 3 3 


140 


749 


4 57 


37 


58 


779 


21 37 


5 


810 


15 46 55 


146 


750 


5 


5 


58 


780 


26 


7 


811 


16 4 


147 


751 


5 I 


16 


58 


781 


44 2 


12 


812 


16 I 42 


148 


752 


5 37 


19 


70 


782 


I 13 20 


19 


813 


16 23 2 


151 


753 


6 23 


43 


80 


783 


I 32 39 


23 


814 


16 23 9 


151 


754 


6 30 


22 


81 


784 


I 39 34 


24 


815 


16 23 16 


151 


755 


6 31 


14 


81 


785 


I 54 4 


28 


816 


16 27 


152 


756 


6 41 





82 


786 


2 9 18 


29 


817 


16 27 29 


152 


757 


7 8 


10 


86 


787 


3 25 49 


39 


818 


16 28 49 


152 


758 


7 19 


55 


88 


788 


3 27 9 


39 


819 


16 30 26 


152 


759 


>8 3 


49 


172 


789 


4 23 30 


49 


820 


16 33 8 


153 


760 


18 9 


30 


175 


790 


10 4 5 


108 


821 


16 47 13 


I 54 


761 


19 31 


45 


194 


791 


II 13 26 


114 


822 


16 58 40 


155 


762 


20 9 


19 


204 


792 


II 35 32 


115 


823 


17 29 


155 


763 


20 15 


43 


206 


793 


II 37 26 


115 


824 


17 42 41 


167 


764 


20 52 


22 


219 


794 


II 47 2 


116 


825 


17 58 20 


170 


765 


20 53 


9 


219 


795 


I' 53 51 


117 


826 


18 2 5 


172 


766 


21 16 


45 


228 


796 


12 II 19 


iiS 


827 


19 38 7 


196 


767 


21 ig 


19 


229 


797 


12 28 27 


120 


828 


19 41 3 


198 


768 


21 49 


9 


238 


798 


12 58 40 


123 


829 


19 43 2 


198 


769 


22 4 


37 


241 


799 


13 I 7 


124 


830 


19 49 


199 


770 


22 27 


47 


247 


800 


13 10 52 


125 


831 


19 51 59 


199 



284 



General Catalogue of Dotible Stars 



p 


R.A. 


Page 


P 


R.A. 


Page 


P 


R.A. 


Page 


832 


20'' o"" 


S' 


202 


863 


23^ 59" 42= 


271 


892 


5i> 40™ 40" 


70 


833 


20 5 


II 


203 


CATALOGUE XIII 




893 


5 56 49 


74 


834 


20 39 


48 

« 


216 


864 


6 40 


2 


894 


6 9 27 


76 


835 


20 58 


39 


221 


865 


38 52 


10 


895 


6 12 23 


77 


836 


21 2 


27 


223 


866 


39 43 


II 


896 


6 23 48 


80 


837 


21 2 


43 


224 


867 


53 56 


IS 


897 


6 44 42 


82 


838 


21 14 


51 


227 


868 


I 2 54 


16 


898 


6 45 


83 


839 


21 16 


10 


228 


869 


I 30 3 


22 


899 


6 52 9 


83 


840 


21 46 


43 


237 


870 


I 36 23 


24 


900 


6 58 33 


85 


841 


21 49 


21 


238 


871 


I 41 49 


25 


901 


7 14 I 


87 


842 


22 3 


31 


241 


872 


I 54 28 


28 


902 


7 52 22 


94 


843 


22 18 


42 


244 


873 


I 56 7 


28 


903 


7 58 9 


96 


844 


22 23 


32 


246 


874 


2 3 8 


28 


904 


8 7 52 


98 


845 


22 36 


27 


250 


875 


2140 


29 


905 


8 10 59 


98 


846 


22 44 


34 


251 


876 


2 16 46 


30 


906 


8 II 23 


98 


847 


22 48 


45 


252 


877 


2 44 32 


33 


907 


8 14 4 


99 


848 


22 49 


58 


253 


878 


3 21 28 


39 


908 


9 8 25 


104 


849 


22 51 


47 


254 


879 


3 22 3 


39 


909 


9 25 25 


106 


850 


22 54 


22 


254 


880 


3 37 3 


41 


910 


9 27 10 


107 


851 


22 57 


36 


255 


881 


4 29 4 


51 


911 


10 2 41 


108 


852 


23 4 


51 


256 


882 


4 32 32 


52 


912 


10 16 26 


109 


853 


23 1 1 


37 


258 


883 


4 44 33 


53 


913 


10 36 26 


no 


854 


23 18 


14 


260 


884 


4 57 22 


58 


914 


10 39 46 


III 


855 


23 32 


23 


263 


885 


5 4 53 


59 


915 


10 43 13 


I II 


856 


23 33 


3 


263 


885 >^ 


5100 


60 


916 


II 8 4 


113 


857 


23 34 


58 


264 


886 


5 14 24 


61 


917 


II 37 25 


115 


858 


23 35 


18 


264 


887 


5 14 33 . 


61 


918 


II 50 36 


117 


859 


23 46 


35 


266 


888 


5 16 30 


62 


919 


II 53 7 


117 


860 


23 53 


53 


268 


889 


5 20 10 


63 


920 


12 9 34 


118 


861 


23 56 


55 


271 


890 


5 20 49 


63 


921 


12 II 42 


119 


862 


23 58 


36 


271 


891 


5 22 48 


63 


922 


12 19 58 


119 



hidex 



>85 



p 


R.A. 


Page 


P 


R.A. 


Pagi-; 


P 


R.A. 


Page. 


923 


iz*" 22"' 12^ 


120 


954 


16'' 50"" 6' 


154 


985 


2oh 13"' 12^ 


206 


924 


12 35 52 


121 


955 


16 55 50 


155 


986 


20 14 10 


206 


925 


12 51 6 


121 


956 


17 4 10 


159 


987 


20 24 50 


210 


926 


12 52 14 


121 


957 


17 8 58 


159 


988 


21 2 28 


224 


927 


12 56 34 


122 


958 


17 9 25 


159 


989 


21 39 13 


234 


928 


12 57 10 


122 


959 


17 16 9 


163 


990 


22 I 32 


240 


929 


12 57 43 


123 


960 


17 32 3 


166 


991 


22 9 I 


242 


930 


13 28 


123 


961 


17 33 32 


166 


992 


23 10 48 


258 


931 


13 4 51 


124 


962 


17 33 45 


166 


993 


23 36 42 


265 


932 


13 28 18 


126 


963 


17 33 32 


166 


994 


23 37 31 


265 


933 


13 29 7 


127 


964 


17 47 39 


168 


995 


23 41 35 


265 


934 


13 32 50 


127 


965 


18 20 2 


178 


996 


23 46 34 


266 


935 


13 39 33 


128 


966 


18 25 25 


179 


997 


23 58 47 


271 


936 


13 51 3 


130 


967 


18 34 5 


181 


998 


7 30 


2 


937 


13 51 52 


130 


968 


18 40 38 


181 


999 


I 20 29 


20 


938 


13 59 29 


131 


969 


18 43 49 


182 


1000 


I 29 27 


22 


939 


14 7 48 


132 


970 


18 44 15 


182 


lOOI 


I 43 5 


25 


940 


14 21 9 


134 


971 


18 44 24 


183 


1002 


2 41 29 


33 


941 


14 29 40 


135 


972 


18 49 59 


185 


1003 


3 40 25 


42 


942 


14 47 29 


138 


973 


18 55 58 


186 


1004 


3 57 27 


45 


943 


15 12 16 


142 


974 


18 58 53 


187 


1005 


3 59 20 


45 


944 


15 25 34 


143 


975 


19 10 4 


1 89 


1006 


5 6 17 


59 


945 


15 26 6 


143 


976 


19 26 27 


192 


1007 


5 34 22 


69 


946 


15 44 44 


145 


977 


19 34 19 


195 


1008 


6 7 38 


1(> 


947 


15 58 28 


146 


978 


19 46 22 


ig8 


1009 


7 3 30 


S5 


948 


15 59 20 


147 


979 


19 46 57 


ig8 


lOIO 


22 49 17 


253 


949 


16 I 54 


148 


980 


19 51 48 


199 


loir 


22 55 Ih 


254 


950 


16 18 41 


150 


981 


19 52 40 


200 


1012 


23 30 45 


263 


951 


16 18 59 


150 


982 


20 6 51 


203 


1013 


23 42 40 


266 


952 


16 31 9 


152 


983 


20 10 11 


204 


1014 


I 24 


I 


953 


16 37 21 


153 


984 


20 12 31 


205 


1015 


14 27 


4 



General Catalogue of Do7iblc Stars 



p 


R.A. 


Page 


P 


R.A. 


Page 


P 


R.A. 


Page 


IOI6 


i'' 42"" 52^ 


25 


1046 


4^ 


57" 17= 


. 57 


1078 


iih 330.473 


IIS 


IOI7 


6 6 28 


75 


1047 


5 


2 


13 


58 


1079 


II '54 34 


117 


IOI8 


6 10 7 


77 


1048 


5 


26 


37 


65 


1080 


12 22 55 


120 


IOI9 


611 26 


77 


1049 


5 


27 


3 


65 


1081 


12 54 32 


121 


1020 


6 15 46 


78 


1050 


5 


30 


55 


66 


1082 


12 55 35 


122 


I02I 


6 24 8 


80 


IO51 


5 


32 


I 


67 


1083 


13 27 


123 


1022 


6 53 15 


84 


1052 


5 


35 


39 


70 


1084 


13 15 59 


125 


1023 


7 7 45 


86 


1053 


5 


45 


18 


72 


1085 


14 52 37 


139 


1024 


7 15 33 


88 


1054 


5 


45 


47 


72 


1086 


15 I 27 


140 


1025 


23 I 38 


255 


1055 


5 


51 


32 


73 


1087 


16 4 35 


148 


CA' 


rALOGUE XIV 




1056 


5 


55 


47 


74 


1088 


17 2 51 


155 


1026 


5 50 


2 


1058 


6 


3 


13 


75 


1089 


17 23 22 


1 65 


1027 


8 44 


3 


1059 


6 


15 


42 


78 


1090 


17 27 43 


165 


1028 


49 28 


14 


1060 


6 


52 


38 


84 


1091 


18 8 35 


174 


1029 


I 7 27 


18 


I061 


7 


33 


54 


91 


1.092 


22 a 3 


249 


1030 


3 3 12 


37 


1062 


7 


41 


23 


92 


CATALOGUE XVI 




IO3I 


4 29 2 


49 


1063 


7 


44 


15 


92 


1093 


14 44 


4 


1032 


5 32 43 


68 


1064 


8 


5 


39 


97 


1094 


23 29 


5 


1033 


18 46 56 


184 


1065 


8 


10 





98 


1095 


23 47 


5 


1034 


20 50 25 


219 


1066 


8 


18 


31 


99 


1096 


29 46 


8 


1035 


21 17 16 


228 


1067 


8 


20 


17 


99 


1097 


30 30 


8 


1036 


21 40 59 


237 


1068 


8 


43 


2 


102 


1098 


47 53 


13 


1037 


22 41 56 


251 


1069 


8 


43 


41 


102 


1099 


49 34 


14 


CA 


TALOGUE XV 




1070 


9 


18 


8 


105 


IIOO 


I 7 9 


18 


1039 


311 


38 


IO71 


9 


24 


49 


106 


IIOI 


I 17 27 


19 


1040 


3 28 49 


40 


1072 


9 


58 


20 


107 


II02 


I 19 39 


20 


IO41 


3 37 19 


41 


1073 


10 


26 


26 


1 10 


II03 


I 35 13 


23 


1042 


3 52 36 


44 


1074 


10 


28 


20 


no 


IIO4 


I 36 2 


23 


1043 


4 30 28 


51 


1075 


10 


30 


25 


no 


IIO5 


3 41 26 


43 


1044 


4 33 I 


52 


1076 


10 


40 


32 


1 12 


II06 


3 42 58 


43 


1045 


'4 50 32 


56 


1077 


10 


56 


19 


112 


II07 


13 20 37 


126 



Index 



2S7 



p 


R.A. 


Page 


P 


R.A. 


Page 


P 


R.A. 


Page 


II08 


13'' 46" 32^ 


130 


II39 


20'' SS"- 39= 


222 


I169 


ih 44m 175 


26 


1 109 


14 3 18 


131 


1 140 


2114 I 


227 


I170 


2 9 39 


29 


mo 


14 12 29 


132 


II41 


21 22 6 


229 


I171 


2 12 46 


29 


mi 


14 17 29 


133 


II42 


21 25 7 


230 


I172 


2 21 27 


31 


1112 


14 26 3 


135 


1 143 


21 35 14 


233 


II73 


2 51 38 


35 


1113 


14 41 21 


137 


1 144 


22 37 23 


250 


I174 


2 57 46 


36 


1114 


15 21 42 


142 


"45 


22 42 45 


251 


1 175 


2 57 49 


36 


1115 


16 18 13 


150 


1 146 


22 42 49 


251 


I176 


3 5 9 


37 


1116 


16 36 51 


153 


1147 


22 57 5 


255 


I177 


3 12 45 


38 


1117 


16 49 34 


154 


1 148 


23 22 2 


261 


I178 


3 17 20 


38 


1118 


17 3 30 


158 


1 149 


23 24 II 


261 


I179 


3 20 47 


39 


1119 


17 9 40 


160 


1150 


23 24 46 


261 


I180 


3 22 23 


39 


1120 


17 21 14 


165 


1151 


23 25 6 


262 


I181 


3 32 54 


40 


1121 


17 31 52 


165 


1152 


23 42 18 


266 


I182 


3 35 30 


41 


1122 


17 44 38 


167 


1153 


23 46 45 


266 


I183 


3 37 36 


42 


1123 


17 45 20 


168 


1154 


23 S3 12 


267 


1 184 


3 41 14 


43 


1 1 24 


17 54 38 


169 


CAT 


ALOGUE XVII 




I185 


4 18 52 


48 


1125 


17 55 40 


170 


II55 


26 


I 


I186 


4 20 51 


48 


1126 


17 56 53 


170 


1156 


19 58 


5 


I187 


4 45 14 


55 


1127 


17 58 59 


171 


II57 


22 30 


5 


I188 


5 44 33 


72 


1128 


18 23 12 


179 


II58 


24 55 


7 


I189 


5 51 18 


73 


1129 


19 18 51 


190 


II59 


32 28 


9 


I190 


5 51 17 


11 


1130 


19 29 19 


193 


I160 


43 24 


12 


I191 


6 19 8 


79 


1131 


19 33 13 


195 


I161 


55 53 


15 


I192 


621 50 


79 


1132 


19 38 II 


196 


I162 


I 3 52 


17 


I193 


6 44 21 


82 


1133 


19 54 56 


200 


I163 


I 18 18 


20 


I194 


7 22 21 


89 


1134 


20 19 29 


208 


1 164 


I 21 26 


21 


I195 


7 45 35 


92 


1135 


20 25 10 


210 


I165 


I 25 4 


21 


1 196 


8 S 55 


98 


1136 


20 28 6 


21 1 


I166 


I 31 45 


22 


I197 


13 56 4 


>3' 


1137 


20 52 37 


219 


I167 


I 33 16 


23 


I198 


16 16 S 


149 


1138 


20 58 34 


221 


I168 


I 43 48 


26 


1 199 


16 n 23 


«53 



288 



General Catalogue of Double Stars 



p 


R.A. 


Page 


P 


R.A. 


Page 


P 


R.A. 


Page 


1200 


17" II- 5^ 


162 


1230 


Jh 


24" 


43' 


21 


1261 


21"^ 10" 


29^ 


226 


I20I 


17 26 37 


165 


1231 


3 


32 


45 


40 


1262 


21 15 


40 


228 


1202 


17 55 33 


169 


1232 


4 


I 


26 


46 


1263 


21 38 


40 


234 


1203 


18 19 57 


178 


1233 


4 


6 


6 


46 


1264 


22 24 


I 


246 


1204 


19 6 r 


188 


1234 


4 


II 


56 


47 


1265 


22 35 


18 


249 


1205 


20 5 47 


203 


1235 


4 


17 


20 


48 


1266 


23 24 


29 


261 


I206 


20 14 36 


206 


1236 


4 


34 


27 


52 


CATALOGUE 


XIX 




1207 


20 16 25 


206 


1237 


4 


46 


28 


56 


1267 


5 27 


22 


66 


I208 


20 28 38 


21 1 


1238 


4 


53 


53 


57 


1268 


7 9 


1 1 


86 


1209 


20 34 9 


214 


1239 


5 


23 


28 


65 


1269 


10 28 


18 


1 10 


I2I0 


20 56 6 


220 


1240 


5 


30 


56 


65 


1270 


13 57 


46 


131 


I2II 


20 57 15 


221 


1241 


6 


2 


27 


74 


1271 


14 13 


4 


133 


I2I2 


21 33 20 


232 


1242 


6 


3 


42 


75 


1272 


14 13 


22 


133 


1213 


21 48 26 


238 


1243 


8 


7 


19 


97 


1273 


14 14 


2 


133 


1214 


21 51 23 


239 


1244 


8 


7 


31 


97 


1274 


18 12 


35 


177 


1215 


22 6 47 


242 


1245 


12 


14 


21 


119 


- 




- 








1216 


22 14 42 


243 


1246 


14 


12 


12 


132 


1275 


2 6 


21 


29 


I217 


22 IS 33 


243 


1247 


17 


7 


3 


159 


1276 


3 47 


4 


43 


1218 


22 22 33 


245 


1248 


17 


16 


31 


164 


1277 


3 58 


15 


45 


1219 


22 42 27 


251 


1249 


17 


19 


30 


164 


1278 


4 7 





46 


1220 


23 9 36 


257 


1250 


17 


20 


19 


165 


1279 


7 4 


26 


85 


I22I 


23 22 12 


261 


1251 


17 


36 


35 


167 


1280 
1281 


10 19 
10 21 


55 
18 


109 
no 


1222 


23 22 23 


261 


1252 


18 


IS 


55 


177 


1282 


II 7 


43 


"3 


1223 


23 39 10 


265 


1253 


18 


28 


15 


180 


1283 


II 8 


7 


114 


1224 


23 50 S3 


267 


1254 


18 


38 


52 


181 


1284 


17 17 


38 


164 


CAT 


ALOGUE XVIII 




1255 


18 


51 


37 


185 


1285 


18 59 


31 


187 


1225 


20 55 


5 


1256 


19 


12 


36 . 


189 


1286 


19 21 


39 


191 


1226 


24 58 


7 


1257 


19 


30 


27 


194 


1287 


19 34 


5 


195 


1227 


25 41 


7 


1258 


19 


55 


26 


200 


1288 


19 35 


39 


196 


1228 


59 30 


IS 


1259 


20 


16 


27 


207 


1289 


19 56 


38 


201 


1229 


I 13 46 


19 


1260 


20 


16 


33 


207 


1290 


20 56 


50 


220 



APPENDIX 



APPENDIX 



p 1096 
P 309 
P 555 

p 1281 



p 120 
P 815 

p 1204 

p 1092 
P 1025 



CORRECTIONS 

(page 8). For B and C read AB and C. 
(page 46). For 3-inch read 6 inch, 
(page 59). In the measures of B and Q. for 
1880.82 read 1880-82. The close pair was 
examined a number of times in those years, 
(page no). The identity of this pair with 
OS 218 was overlooked when it was placed 
in the catalogue. A comparison of the 
recent measures with those of Madler and 
02 show clearly direct motion in angle, 
(page 149). In the last measure of AB and 
Q for 326?4 read 336?4. 
(page 151). The direction of the proper 
motion, given as i4i?6, is that of the 
principal star. If the companion is mov- 
ing, as seems most probable, the direction 
of its motion would be 32i?6. 
(page 188). Insert the word "than" in the 
third line, making it read, "four other stars 
nearer than the Struve companion." 
(page 249). In the ryeasure of A B of 1 899. 7 i 
/^r 2 29?5 read 20()°.^. 

(page 255). In the Right Ascension for 
2.2^ read 23''. 



ADDITIONAL MEASURES 

P 1026 (Page 2) 



1899.89 



343-4 



0.29 



Ailken 



There appears to be a very decided change in 
the angle since my measures in 1888. 

P 1 156 (Page 5) 

o « 

1899.57 31-° °-54 2« Aitken 

There seems to be no sensible change. 

P 107 (Page 5) 



Barnard 



AB 


1899.82 


354-8 


5-78 


211 1 


AC 


1899.82 


336-7 


46.83 


211 j 


AD 


1899.82 


146.6 


50-30 


211 ; 


AE 


1899. 82 


171.0 


113.48 


2;/ 1 

1 


AF 


1S99.82 


I 13.8 


150-32 


2« J 



The interval is too short to show change in the 
distant stars. This will be cleared up bv later meas- 
ures. Change in AB is certain, but it may be due 
to the proper motion of one of the components. 

P 1226 (Page 7) 

1^99-55 187.3 0.34 3// Aitken 

1899.85 191-3 0.33 211 Barnard 

Probably no material change since the measures 
of 1891. 

p 1096 (Page 8) 

O II 

1899.57 266.7 0.19 yi Aitken A and B 
1899.76 61.6 33.78 211 Barnard .A.B and C 



1899.85 



1899.72 



P 1097 (Page 8) 

o // 

251.4 0.40 yi 



P 395 (Page 9) 



286.7 



0.48 



Barnard 



Aitken 



In two of the measures the components were 
rated as equal in magnitude. 

P 1 159 (Page 9) 

Examined by An ken (1899.89) and elongation 
suspected in 52° it, with distance of o.'2 or less, 
but conditions not good enough for accurate meas- 
urement. 



P 301 (Page 11) 

1899.68 3I9--2 0.86 2n 

No relative motion since 1S91. 



Ailken 



1899.56 



P 1099 I Page 14) 
31 2.6 



0.23 



.\itken 



This mean result includes the single measure 
prc\'iousl\' given of 1S99.46. 



201 



General Catalogue of Double Stars 





P I 162 (Page 


>7) 




899.56 


/' 
139.2 0.33 


yi 


Aitken 


899.83 


141. 6 0.35 


2/1 


Barnard 



1899.70 


214.7 


0.31 


1899.79 


214.3 


0.25 



The recent measures show no chant^e since 1890. 



P I163 (Page 20) 

3;/ Aitken 

2« Barnard 

A very decided change since my measures in 
1890. In nine years the angle has increased more 
than 20°. 



P 513. 48 Cassiopeiae (Page 27) 
1899.72 11.6 0.42 3-2;/ Aitken 



P 1 170 (Page 29) 



1899.65 



297.4 



Aitken 



In 1890 I made the angle 3i3?3, but it is a very 
difficult pair, and the apparent change requires 
confirming. 

p 1 172 (Page 31) 



1899.65 


232.8 


1.60 


m 


Aitken 


1899.79 


238.2 


1.68 


2)1 


Barnard 



P 524. 20 Persei (Page 34) 

o '/ 

1899.55 49.7 0.13 211 Aitken 



P I173 (Page 35) 

o II 

1899.73 338.2 0.20 211 Aitken A and B 
1899.70 283.8 4.83 211 Aitken AB and C 

Some change in the close pair is probable. 



p 1176. 48 Ccpha (H) (Page 37) 

o '/ 

1899.65 268.1 1.22 III Aitken AB 

1899.82 275.7 1.25 2;/ Barnard 

1899.65 232.7 10.89 1'^" Aitken AC 

1899.81 232.4 11.06 yi Barnard 



A and B appear to have the same proper motion ; 
and probably form a physical system. The change 
in C corresponds to the proper motion of A, and 
the distant companion is therefore not a member 
of the system. 



p 1 178 (Page 38) 

o ;/ 

1899.84 348.4 0.51 m 

No evidence of change sine 1890. 



Barnard 



B II77(Page38) 

o // 

1899.78 12.0 0.35 yi Aitken 

A difficult pair, but some change is probable. 

P 536 (Page 42) 



1899.70 


301.6 


0.15 


3« 


Aitken 


AB 


1899.65 


8.6 


18.38 


2« 


Barnard 


CD 


1899.65 


329.8 


7.76 


3« 


Barnard 


CE 



The' 16 m star, E, has not been observed before. 
It is important that the close pair should be 
watched and measured in the near future. 



p 538 (Page 42) 

o // 

1899.69 130.2 1.78 



Aitken 



1899.70 



1899.69 



P 1 105 (Page 43) 

o // 

46.4 0.32 2n Aitken 



P II06 (Page 43) 



19.6 



0-35 



Aitken 



This measure is noted as "uncertain," and the 
apparent change of more than 30° in the past ten 
years may not be real. It is very difficult object 
with the largest aperture. 



P Il85(Page48) 

o II 

1899.92 352.0 0.14 2// 

Very decided change in the angle. 



Aitken 



Appendix 



293 



P 550. a Tanri (Page 49) 

o // 

1899.64 275.1 1.95 211 Barnard CD 
p 883 (Page 53) 



1899.75 


54-4 


0.25 


1" 


Aitken 


1899.75 


58.7 


0.38 


\ii 


See 


1899.78 


54.0 


0.22 


4" 


Barnard 



A recent examination of all tlie measures of this 
star leads to the conclusion that the most probable 
period is about seventeen years. It is certain that 
the measures of 1891.97 to 1899.78 are properly 
adjusted as to quadrants, and that the angular mo- 
tion in 7.8 years is only iio*^. These measures are 
fairly consistent. A different and somewhat smaller 
value for the period may be found by rejecting the 
original position of 1879. This is a single obser- 
vation, but it is substantially correct, unless an 
error was made in reading the position-circle, and 
this is very improbable. 



P 552 (Page 54) 



1899.75 
1899.79 



202.3 
202.8 



0.60 
0.45 



4« 



P 1238 (Page 57) 

o u 

1899.92 15.8 1.48 

Probably unchanged. 



See 
Aitken 



Aitken 



P 555- P Orio?iis (Page 59) 



1899.71 
1899.72 
1899.82 
1899.92 



I92zb 
184 
172.7 
210.6 



0.2± 
0.13 
O.I ± 

o. 16 



m 
\)i 
ifi 
111 



Aitken 

Barnard 
Aitken 



This pair may have a period less than that of any 
known binary. It is difficult to adjust all the 
observations, positive and negative. The measures 
can be represented by a period of about five years, 
but upon any assumption the elongation should 
have been seen at some of the times when it was 
noted as single by apertures large enough to show 
it. If it is carefully watched with the largest tele- 
scopes, as it doubtless will be, the approximate 
period will be determined within a few years. 



P 557 fPage 64) 

o /; 

1899.73 146.0 0.29 \U 



P 1239 (Page 65) 



1899.92 
1899.92 
1899.92 



2^2.1 



2.36 211 Aitken 

7.75 m Aitken 

10.41 



in Aitken 



-A^itken 



BD 
AB 
AC 



P 1240. 26 Aurig(Z (Page 66) 

O tf 

1899-92 330-8 0.20 211 Aitken 



P 1032. 0" Ononis (Page 68) 



1899.79 



329.0 



Aitken 



The retrograde motion continues, with little or 
no change in the distance. 



P 1007. I 26 Tauri (Page 69) 



1899.54 



M3-5 



Aitken 



This mean includes the single measure of 1899.17 
given on page 69. 

P 1055 (Page 73) 

1899.80 333.6 2.15 4// Barnard AB 
1899.77 327.8 33. 38 3« Barnard AC 

If the proper motion given from Kustner is 
substantially correct, the components of the close 
pair are moving together, as otherwise, the posi- 
tion angle of B at the date of the above measures 
would be 2o?5 more than it was in iSSS. 

p 1 241. 4 Geminonon (Page 74) 

1899.92 334-0 0.50 211 .\itken 

Change is probable in the close pair. 

P 1058. 4 Gciniiionim (Pago 75") 

1899.92 275.8 0.2S 211 Aitken 

Slow motion m angle is probable. 



294 



General Catalogue of Double Stars 



P 1 192. V Geuiinorum (Page 79) 

O 11 

1S99.92 342.2 0.21 \n Aitkeii 

P loi. 9 Argus (Page 92) 

1899.62 295.4 0.54 ^n Aitken 

This mean includes the two measures of 1899.19 
given on page 62. The distance is now about 
maximum, and the motion in angle is correspond- 
ingly slow. 

P 1064. 19 Argus (Page 97) 

o // 

1899.91 252.9 2.24 2)1 Aitken 

P 208 (Page 10 1 ) 

1899.91 94.4 0.25 2)1 Aitken 
This binary appears to be rapidly closing. 

P 1069 (Page 102) 

o ;/ 

1899.92 60.0 2.08 \n Aitken 

P 608 (Page 124) 

o // 

1898.43 297.2 285.57 211 Glasenapp AC 



P 800 (Page 125) 

o // 

1S99.43 1 1 1-5 2.52 m Brown 

p 237 (Page 126) 

o // 

1899.43 203.9 2.87 \u Brown 

p 113 (Page 126) 

o // 

1899.43 206.0 1.30 \n Brown 

P 953 (Page 153) 

1899.71 223.2 o.io m Aitken 

The rapid angular motion continues. It is 
probably a short-period binary. 



P 1089 (Page 165) 

o // 

1899-58 352.2 0.78 yi 



Aitken 



These measures confirm the retrograde motion 
in angle. 



p 962. 26 DracoJiis (Page 166) 

o ;/ 

1899.71 44.1 0.59 in Aitken 

The angular motion is now rapid, and it has 
become a very difficult pair to measure. 

P 131 (Page 174) 
1899.62 278.5 2.85 4« Hussey 



P 1 128 (Page 179) 



1897.73 197-9 



3-70 



See 



See {^A. J. 431) notes the principal star as a close 
equal pair, 265?!!= : o;'i8± (1897.74). 



1899.71 



p97t (Page 183) 

o tf 

19.8 0.36 \n Aitken 



This will be an interesting system, but further 
measures are necessary to show the apparent orbit. 



p 651 (Page 192) 

o // 

1899.70 287.0 6.69 6« Doolittle 

P 145 (Page 196) 

o II 

1899.70 266.2 0.83 3« Doolittle AB 
1899.70 28.8 9.03 yi " AC 

1899.70 156.2 27.08 yi " AB 

P 827 (Page 196) 

O // 

1899.60 262.1 0.74 \n Hussey 

Slow retrograde motion is probable. 



Appendix 



'95 



p 361 (Page 198) 
1899.71 358.9 3.86 2)11 Doolittle 

P 979 (Page 198) 

o // 

1899.70 335-9 2.05 4« Doolittle 

P 980. T| Cygni (Page 199) 

1899.71 208.2 7.50 3// Doolittle AB 
1899.71 326.8 46.29 3« " AC 
1899.71 169.2 50.08 yi ." AD 



899 
899 
899 
899 
899 
899 
899 



P 429 (Page 202) 

o // 

73 60.2 6.56 4« Doolittle AB 



73 25.3 8.89 4« 

73 300.7 11.34 4;/ 

73 107. 1 28.28 A,)l 

73 28.1 36.36 4// 

73 109. 1 9.68 4« 

73 56-6 30.08 4« 



AC 
AD 
AE 
AF 
FG 
AH 



The faint star, H, has not been measured before. 

P 1260 (Page 207) 

// 

1899.71 164. 1 0.48 3-2/? Aitken 

A difficult object, but without material change. 
P II36 (Page 211) 

o « 

1899.76 215.5 °-i9 i'^ Barnard 

i'899.82 200.9 °-39 i'^ Aitken 

In the last measure the distance is noted as un- 
certain. 

P 68 (Page 220) 

1899.76 150-3 I -90 y> Barnard 

P 151. P Delphini (Page 211) 



1899.76 


7-9 


0.6S 


2« 


See 


1899.76 


5-5 


0.58 


3« 


Brown 


1899.68 


3-8 


0.60 


211 


Aitken 



P 271 (Page 226) 

1899.75 237.4 3.21 2)1 Barnard AB 
1899.75 72.9 75.45 4« Barnard AC 

The change in the distance of C corresponds to 
the proper motion of A. 



P 686 (Page 232J 
1899.71 300.9 0.80 \n .^^itken 

p 1263 (Page 234) 

o n 

1899.71 243.4 0.49 \n Aitken 

The measures indicate rapid motion in angle. 

P 989. K Pegasi (Page 234) 

o // 

1899.81 281.4 0.20 211 See 

1899.81 282.2 0.24 211 Brown 

P 689 (Page 234) 

o « 

1899.74 239.0 1. 91 211 Aitken 

The components appear to be fixed. 

P 691 (Page 237) 

O it 

1899.76 316. 1 0.76 \)i Barnard 

Change in angle is probable. 

P 1213 (Page 238) 

1899.78 306.0 0.84 211 .Aitken 

There may be some change in the angle. 

P 1265 (Page 249) 

O il 

1899.73 250.0 0.55 \u .-Vitken 

p 848 (Page 253) 
1S99.73 2.1 2.34 Ml .Aitken 



296 



General Catalogue of Double Stars 



p 78 (Page 255) 

o u 

1898.51 54-7 18.29 211 Doolittle AB 
1898.51 61.9 48.36 211 Doolittle AC 



P 180 (Page 256) 



1898.49 
1898.49 



172.8 
106.6 



0.82 
34-84 



211 
211 



Doolittle 
Doolittle 



No material change. 



p 853 (Page 258) 

1899.73 223.4 0.75 i« Aitken 
1899.73 69.8 7.03 m Aitken 

No material change. 



AB 
AC 



P 718. 64 Pegasi (Page 260) 

o /' 

1899.92 88.1 0.46 \n Aitken 

Noted as "difficult and uncertain." The relative 
motion is obviously slow. 

P 720. 72 Pegasi (Page 262) 
1899.81 i67?8 0.35 i« See 



P 721 (Page 263) 

1899.81 127.0 0.30 Ml 

P 733- 85 Pegasi (Page 2t 



See 



1899.80 


234.6 


0.83 


211 


Brown 


1899.81 


237-5 


0.82 


111 


See 


1899.92 


234.8 


0.81 


\fl 


Aitken 



NEW NEBULAE 

In looking over my old observing books used 
at the Lick Observatory, I find a good many nebulae 
noted from time to time which were not found in 
Dreyer's General Catalogue. These were acci- 
dentally picked up in the course of the double star 
work, and seen because they were in the field with 
some bright star. A few of these were measured 
from the star, and the places given in Publications 
of the Lick Observatory, Vol. II, pp. 155, 181. Many 
others were never reexamined at that time. Three 
of these I have looked up with the 40-inch, and 
measured their places from the adjacent stars. In 
each case the position given below is that of the 
star (1880). 

Lalande 26702 and nebula 

R.A. 14" 33" 29= \ 
Decl. — 15° 41 ' \ 

o /; 

1899.285 236.7 284.46 Single distance 

This star is the preceding of two, about 7 m. 

D.M. (34") 2815 and nebula 



1899.285 



R.A. 16'' 56™ 57= 
Decl. + ii" 42' 



314.0 153-88 Single distance 



The comparison star is I3^6 preceding and 5. '2 
south of 59 Herculis. 

Y\&.T-i\ XVIII. 203 and nebula 



R.A. 18'^ 43"^ 39' 
Decl. + 19" II ' 43" 



1899.249 86.8 112.99 Single distance 

The comparison star is 6 m. Lalande 35032. 



